FAQ Overview

Unist MQL Systems

What is the difference between MQL and mist lubrication?

MQL

 
see 'Minimum Quantity Lubrication'

is an acronym for Minimum Quantity Lubrication and refers to the application of minimum quantities of a lubricant aerosol to the interface of the cutting tool and the work piece. This controls cutting temperature by reducing the friction. Although the terms are often used interchangeably, and the MQL aerosol can be described as a mist,  the preferred term is MQL because the term “mist” is misleading.  The most common mistake new adopters of MQL make is to use too much lubricant at too high of an air pressure.  This makes a mist which fills the shop, irritates workers, and wastes lubricant.  In most cases, when properly applied, the MQL aerosol is so little it cannot be seen: there is no visible mist.  To discourage operators to from creating the unnecessary “mist” and to apply the proper minimal amount of lubricant, the more helpful description of MQL is preferred.

Author: Unist
Last update: 2020-03-10 19:26


For misting lubricants, what is the ratio of lubricant to water?

There is no mixing required when using our Coolube® lubricant. Coolube® is applied in aerosol form using an MQL applicator such as our Quantum™ system, Revolution™ system, Coolubricator™ or Serv-O-Spray™ systems.

Author: Unist
Last update: 2020-03-10 19:29


Is MQL the same as traditional flood coolant?

Minimum Quantity Lubrication (MQL) is not the same as traditional flood coolant. In fact, it is very different. Many people new to MQL are used to a flood coolant mindset and have trouble making the distinctions:

 

  1. MQL does not use a coolant. Traditional flood coolant uses a circulated liquid designed for heat transmission to carry heat away from the interface of the cutting tool and the work piece.
  2. MQL uses a lubricant. With MQL, friction is reduced within the cutting tool/work piece interface through the use of a lubricant. Advanced lubricants such as Coolube reduce friction, and therefore heat, so well that there is no need to carry heat away using a coolant.
  3. Coolant uses a flood. For coolant to work, the interface must be flooded with coolant which must then have a place to go when it has done its job and absorbed the heat. This requires constant recirculation of gallons and gallons of coolant.
  4. MQL uses minimum quantities. Advanced MQL lubricants do their job so well that typically, only a few ounces are used during an 8 hour shift
  5. Coolant requires extra equipment. Because coolant is re-used until it is no longer viable, it requires equipment to recirculate and filter/clean it. Sump-side coalescers, skimmers, filters, sump vacs, and test kits are common equipment required for the use of coolant.
  6. MQL requires minimum equipment. With MQL, you need a quality applicator such as a Unist Coolubricator or Serv-O-Spray which has the ability to accurately dispense lubricant and to do it consistently.  There is no need for any additional equipment.
  7. Flood coolant is not a sensitive process. Applying coolant is a simple process. As long as enough coolant is applied to flood the interface, it will work.
  8. MQL requires hitting a lubrication 'sweet spot.' With Minimum Quantity Lubrication, each cutting operation has an appropriate amount of lubricant or 'sweet spot' which must be hit to experience MQL's benefits. Luckily, adjusting your MQL applicator to hit the sweet spot is simple when you follow some basic guidelines.
  9. Coolant is anything but dry. Coolant tends to splash and get thrown from the interface. This can result in a mess with coolant coating equipment, parts, chips/swarf, and floors. Since coolant remains after the cutting process, it can create secondary messes during its filtration or disposal phases.
  10. MQL is near-dry. Such a small quantity of lubricant is applied in MQL that there is no mess to clean up. When applied properly, only a very thin film of lubricant remains on finished parts and chips/swarf are virtually dry meaning they can be recycled for greater profit. With MQL, your equipment and floors stay clean.
  11. Coolant requires disposal. Once coolant is no longer usable, it requires costly disposal
  12. MQL lubricants are consumed No excess MQL lubricant remains to require disposal or clean up.
  13. Coolant is cheap per gallon but an expensive process to maintain. When you consider the additional equipment required to utilize coolant, the increased housekeeping costs, and disposal costs, coolant quickly becomes an expensive proposition.
  14. MQL is an inexpensive process to maintain. MQL lubricants are more expensive than coolants per gallon. This may be true, but when you consider that only ounces are used per shift, you see that a gallon can go a long way. When you factor in the benefits of MQL in reduced housekeeping, cleaner parts, increased chip/swarf recycling values, healthier employees, and reduced equipment costs, MQL quickly becomes a less expensive proposition than coolant

Author: Unist
Last update: 2020-03-10 20:06


MQL

Has MQL proven to extend tool life as well as the top rated water soluble flood coolants, in turning operations with carbide inserts on steel?

Yes, MQL can work well in turning applications. However there are some special considerations that need to be addressed. Since the cutting edge of the tool is continuously in the cut, nozzle position is critical and more difficult. Carbide tools can work well, but it is largely determined by the relative size of the parts and the length of time in the cut. In many cases a multi-layer coating, such as TiAlN works even better

Author: Unist
Last update: 2020-03-11 14:11


I am getting a mist and it is bothering my employees. What do I do?

Machining with minimum quantity lubrication has been shown to produce fewer emissions than flood cooling. It is, in fact, a low-emission process. Unfortunately, when starting with MQL, many shops think that more is better so they blast as far too much air through the MQL nozzles and literally create a fog or mist of lubricant in the air. This is not MQL! A properly adjusted MQL system uses just enough air velocity to drive the lubricant to the tool, not enough to drive it around the block!

Just as less is better with the air, closer is better with the nozzle. The longer the distance that the nozzle needs to spray, the more airflow is needed to carry aerosol and the higher the likelihood of an unwanted mist being generated. In closed machines, an extraction system can help with this. In open systems, putting the nozzle closer to the cut helps. The fluid output should be virtually invisible. If you see a mist spraying from an external nozzle, you will likely see fogging in the plant.

Unless you are working with very small chips, as in micro-cutting, trying to blow the chips away with air from the fluid delivery spray will only create a fog and use more fluid than is necessary. Use a separate chip removal approach, such as an air blow-off or a vacuum, to remove chips if needed.

On a Coolubricator or Serv-O-Spray system the amount of air that mixes with fluid at the nozzle tip can be adjusted with the air metering screw. Turn the metering screw counter-clockwise to increase the air flow and clockwise to decrease the air flow. A good initial setting is open about from ¼ to ½ of a turn.detail of air metering screw

Author: Unist
Last update: 2020-03-11 14:12


How is MQL different from traditional flood coolant?

Minimum Quantity Lubrication (MQL) is not the same as traditional flood coolant. In fact, it is very different. Many people new to MQL are used to a flood coolant mindset and have trouble making the distinctions:

  1. MQL does not use a coolant. Traditional flood coolant uses a circulated liquid designed for heat transmission to carry heat away from the interface of the cutting tool and the work piece.
  2. MQL uses a lubricant. With MQL, friction is reduced within the cutting tool/work piece interface through the use of a lubricant. Advanced lubricants such as Coolube reduce friction, and therefore heat, so well that there is no need to carry heat away using a coolant.
  3. Coolant uses a flood. For coolant to work, the interface must be flooded with coolant which must then have a place to go when it has done its job and absorbed the heat. This requires constant recirculation of gallons and gallons of coolant.
  4. MQL uses minimum quantities. Advanced MQL lubricants do their job so well that typically, only a few ounces are used during an 8 hour shift
  5. Coolant requires extra equipment. Because coolant is re-used until it is no longer viable, it requires equipment to recirculate and filter/clean it. Sump-side coalescers, skimmers, filters, sump vacs, and test kits are common equipment required for the use of coolant.
  6. MQL requires minimum equipment. With MQL, you need a quality applicator such as a Unist Coolubricator or Serv-O-Spray which has the ability to accurately dispense lubricant and to do it consistently. There is no need for any additional equipment.
  7. Flood coolant is not a sensitive process. Applying coolant is a simple process. As long as enough coolant is applied to flood the interface, it will work.
  8. MQL requires hitting a lubrication 'sweet spot.' With Minimum Quantity Lubrication, each cutting operation has an appropriate amount of lubricant or 'sweet spot' which must be hit to experience MQL's benefits. Luckily, adjusting your MQL applicator to hit the sweet spot is simple when you follow some basic guidelines.
  9. Coolant is anything but dry. Coolant tends to splash and get thrown from the interface. This can result in a mess with coolant coating equipment, parts, chips/swarf, and floors. Since coolant remains after the cutting process, it can create secondary messes during its filtration or disposal phases.
  10. MQL is near-dry. Such a small quantity of lubricant is applied in MQL that there is no mess to clean up. When applied properly, only a very thin film of lubricant remains on finished parts and chips/swarf are virtually dry meaning they can be recycled for greater profit. With MQL, your equipment and floors stay clean.
  11. Coolant requires disposal. Once coolant is no longer usable, it requires costly disposal
  12. MQL lubricants are consumed No excess MQL lubricant remains to require disposal or clean up.
  13. Coolant is cheap per gallon but an expensive process to maintain. When you consider the additional equipment required to utilize coolant, the increased housekeeping costs, and disposal costs, coolant quickly becomes an expensive proposition.
  14. MQL is an inexpensive process to maintain. MQL lubricants are more expensive than coolants per gallon. This may be true, but when you consider that only ounces are used per shift, you see that a gallon can go a long way. When you factor in the benefits of MQL in reduced housekeeping, cleaner parts, increased chip/swarf recycling values, healthier employees, and reduced equipment costs, MQL quickly becomes a less expensive proposition than coolant

Author: Unist
Last update: 2020-03-12 13:23


Coolube® Lubricants

How does the EP Additive Work in 201EP?

The Extreme Pressure (EP) additive in Coolube 2210 EP helps to decrease the wear of tools exposed to very high pressures. The term "extreme pressure" classically refers to the property of lubricants which impart to rubbing surfaces the ability of carrying appreciably greater loads than would be possible with ordinary lubricants without excessive wear or damage.

Our EP additive contains organic sulfur compounds which react with metal surfaces based on the heat generated by small irregularities on the surfaces. These irregularities cause localized flashes of high temperature without significant increase of the overall average surface temperature. When these conditions exist the additive reacts to produce a protective film that prevents this friction thus enhancing tool life and improving surface finishes.

Sulfur containing EP additives can cause corrosion problems in parts made of bronze, brass and other copper alloys when high temperature environment is encountered. This is why we only recommend Coolube 2210 EP for use on ferrous metals.

Author: Unist
Last update: 2020-03-11 14:16


What is the difference between Coolube® 2210 and Coolube® 2201EP?

Coolube® 2210 is ideal for metals, wood, rubber, and most plastics and is especially effective on aluminum and non-ferrous metals.

 

Coolube® 2210EP contains an 'Extreme Pressure' additive and is specially formulated for use with ferrous metals. Coolube® 2210EP also works with all non-ferrous metals except copper.

Author: Unist
Last update: 2020-03-11 14:19


Is Coolube® biobased?

Yes,

Defined by the 2002 Farm Bill, biobased products are commercial or industrial products (other than food or feed) that are composed in whole, or in significant part, of biological products, renewable agricultural materials (including plant, animal, and marine materials), or forestry materials. The USDA issues Certified Biobased Product labels to products with a minimum of 25% biobased content. Coolube® 2210 is certified at 93% biobased content and Coolube® 2210EP at 92%.

Author: Unist
Last update: 2020-03-11 14:21


Does Coolube® irritate the skin?

As with many natural products, prolonged exposure to Coolube's® bears a slight risk of skin irritation, but this is extremely rare. Most of the components of Coolube are also used in cosmetics, and this is one of the reasons it rarely irritates the skin. The components are also food-grade and, although Unist does not recommend it, could be used in food preparation.

In over 30 years of manufacturing and handling Coolube® we have had very, very few reports of any exposure issues. However if irritation should occur, washing the affected area with soap and water should eliminate the irritation. It is worth noting that one of Coolube's® components is considered a penetration enhancer and may enhance the skin penetration of other chemicals. For this reason users should exercise caution when using Coolube® in conjunction with other products which have set limits based on dermal absorption.

Coolube Safety Data Sheets

Coolube Product Info

Author: Unist
Last update: 2020-03-11 14:26


For Coolube, what is the ratio of lubricant to water?

There is no mixing required when using our Coolube® lubricant. Coolube® is applied in aerosol form using an MQL applicator such as our Quantum™ system, Revolution™ system, Coolubricator™ or Serv-O-Spray™ systems.

Author: Unist
Last update: 2020-03-12 13:19


If I am using Coolube, what paint should I use on my machine so it doesn’t come off?

Coolube® is a highly refined plant-based oil and should not affect the paint on your machine. Coolube® can be easily cleaned using an alkaline-based detergent (such as 'Dawn' dishwashing liquid).

Author: Unist
Last update: 2020-03-11 14:36


My recently received Coolube is a slightly different color than my previous bottles. What is going on?

CooLube products may vary slightly in appearance due to vegetable source raw materials. Whenever naturally occurring raw materials are used, there is always a chance of color variation. The color standard is managed and monitored to be within our acceptable range. Shade variations within this specification do not have any negative impact on product performance, and do not indicate the presence of any impurities in the product.

Author: Unist
Last update: 2020-05-07 19:36


Unist MQL Systems » About MQL systems

How can I tell which Unist pump I have?

There are several styles of Unist positive displacement pumps. The pump you have depends on several things including what type of fluid you are pumping and whether or not your pump is 'stacked' with other pumps. If your pump is one of several in a stack, its position in the stack determines its style. Consult the chart below (click on the image for larger view) to determine your pump style and type.

Click here for a video on our new MV (Multi-Viscosity) pumps which also has some good information on identifying all types of pumps.

 

unist pump id chart

Author: Unist
Last update: 2020-03-10 20:31


How do I choose the best nozzle for my saw?

Circular Saws:

Blade 20” or under: Use a 3” BAT nozzle, part number 3S-3 Blade larger than 20”: Coolubricator with a minimum of two standard nozzles


Vertical Band Saw:

All blade sizes: Use a 3” BAT nozzle, part number 3S-3


Horizontal Band Saw:

Choose either a BAT nozzle or Collapsible Blade Nozzle/Guide Nozzle combination


BAT Nozzle

The BAT Nozzle works with most types of saws and is the most popular choice by users and OEM’s. This is because its nozzle configuration makes it more forgiving than the collapsible nozzle in regards to the distance the nozzle can be from the blade, although it is still important to have it well centered over the blade. Using the BAT Nozzle requires cutting a mounting hole in blade guard where the blade teeth can be sprayed by the nozzle (see installation sheet for details). The location should be before the blade enters the material but after any chip brushes or other items that would remove the lube.

All blade sizes: Use a 3” BAT Nozzle, part number 3S-3


Collapsible Blade Nozzle

The collapsible style nozzle requires mounting on the lower horizontal portion of the saw, before the blade enters the material. This can be on the lower blade guard – but in this case it means modifying the guard as with the BAT Nozzle– or mounting to the guide block itself. If the guide block is 1.5” or wider the nozzle can be mounted directly by drilling and tapping mounting holes. If the guide block is too small, or the collapsible nozzle is being mounted into the guard, a bracket will have to be fabricated. Care should be taken in drilling the mounting holes or making the bracket to ensure the nozzle is rigidly mounted and positioned correctly in the both the vertical and horizontal positions (see installation sheet for details). Blade 1” or under: Use a standard Collapsible Blade Nozzle, part number 301183. Blade 1” to 2”: Use a standard Collapsible Blade Nozzle and a Guide Nozzle, part numbers 301183 and 301264 respectively. Blade between 2” and 3”: Use an extended Collapsible Blade Nozzle and a Guide Nozzle, part numbers 301497 and 301264 respectively.

Guide Nozzle

The Guide Nozzle is designed to accompany the Collapsible Blade Nozzle or Bat Nozzle. The Guide Nozzle applies lubricant to the blade where it comes in contact with the guides to reduce friction and extend blade and guide life. Part no. 301264

Author: Unist
Last update: 2020-03-10 20:43


Unist MQL Systems » System Setup

What should be the initial settings on my Coolubricator?

As a general rule of thumb, MQL applies between 5 to 80 mL/hour (0.2 to 2.5 oz./hour) on tools less than 40 mm (1.57”) in diameter. The amount is dependent on the specific cutting conditions, but fortunately there is usually a lot of latitude on what will work. To make it easy to adjust the output of a Coolubricator, it helps to fix two of the controls first so you only have to adjust one. The settings and process given here assume you are using Coolube and standard Unist nozzles. If you are not you may have to make additional adjustments to find the best setting for your operation.

 

unist pump adjustments

 

First, set the nozzle airflow. A properly adjusted MQL system uses just enough air velocity to drive the lubricant to the tool when it is cutting. Setting the air flow higher than necessary will create undesirable fogging of the fluid. On a Coolubricator system, the amount of air that mixes with fluid at the nozzle tip is adjusted with the air metering screw. Turn the metering screw counter-clockwise to increase the air flow and clockwise to decrease the air flow. A good initial setting is open from ¼ to ½ of a turn.

Next, set the pump to a half stroke. This procedure depends on the pump type.

On the standard Unist pumps, rotate the knob clockwise until it stops (full stroke), and then back it off (counter-clockwise) 3 full revolutions.

On the MV style pumps, rotate the knob counter-clockwise until it stops (full stroke), and then back it off (clockwise) 3.5 revolutions.

This middle position generally gives a good spray pattern from our standard nozzles and sets the output so it is easy to know the amount of fluid being dispensed.

Now you can now adjust the pulse generator to vary the amount of fluid dispensed. With the pump at half stroke, the output is approximately 1 mL/hour when the pulse generator is set to 1 cycle/minute. Knowing this, it’s easy to achieve other desired settings. For example, to get 40 mL/hour of output you turn the pulse generator knob so cycles 40 times per minute. Similarly, for 20 mL/hour set the pulse generator to 20cycles/minute.

Less is often more in MQL, so we suggest starting out on the lower end of the MQL range. Often somewhere around 20 mL/hour is a good starting point. As stated previously, this can be achieved with the pump at half stroke and the pulse generator set at 20 cycles/minute (once cycle every 3 seconds). This initial setting will work for most cases, but of course you may have to do some additional tweaking depending on your circumstances.

On the extreme ends of the MQL range, this single-knob adjustment approach may not give the best output results. If you find the fluid output appears to be pulsing with each pulse of the pulse generator, increase the pulse generator rate and correspondingly decrease the stroke of the pump to maintain the same total output. If the pulse generator sounds like a machine gun (more than 1 pulse/second), then decrease its rate and increase the pump stroke.

It is important to note that these adjustments are made once the pumps are primed and ready for use. The pump must be set to full stroke to prime properly and because of this they are set at full stoke when leaving the factory.

Author: Unist
Last update: 2020-03-10 20:45


How do I convert 'drops' to milliliters or ounces?

Use the following chart to convert between drops, milliliters or ounces:

Fluid Output Conversion Chart

  = Rule of thumb range for tools less than 1.5" (38.1mm) in diameter
mL/hr oz/hr drop/hr mL/min oz/min drop/min
2 0.07 60.00 0.03 0.00 1.00
3 0.10 90.00 0.05 0.00 1.50
4 0.14 120.00 0.07 0.00 2.00
5 0.17 150.00 0.08 0.00 2.50
6 0.20 180.00 0.10 0.00 3.00
7 0.24 210.00 0.12 0.00 3.50
8 0.27 240.00 0.13 0.00 4.00
9 0.30 270.00 0.15 0.01 4.50
10 0.34 300.00 0.17 0.01 5.00
15 0.51 450.00 0.25 0.01 7.50
20 0.68 600.00 0.33 0.01 10.00
25 0.85 750.00 0.42 0.01 12.50
30 1.01 900.00 0.50 0.02 15.00
35 1.18 1050.00 0.58 0.02 17.50
40 1.35 1200.00 0.67 0.02 20.00
40 1.35 1200.00 0.67 0.02 20.00
45 1.52 1350.00 0.75 0.03 22.50
50 1.69 1500.00 0.83 0.03 25.00
55 1.86 1650.00 0.92 0.03 27.50
60 2.03 1800.00 1.00 0.03 30.00
65 2.20 1950.00 1.08 0.04 32.50
70 2.37 2100.00 1.17 0.04 35.00
75 2.54 2250.00 1.25 0.04 37.50
80 2.71 2400.00 1.33 0.05 40.00
85 2.87 2550.00 1.42 0.05 42.50
90 3.04 2700.00 1.50 0.05 45.00
95 3.21 2850.00 1.58 0.05 47.50
100 3.38 3000.00 1.67 0.06 50.00
105 3.55 3150.00 1.75 0.06 52.50
110 3.72 3300.00 1.83 0.06 55.00
115 3.89 3450.00 1.92 0.06 57.50
120 4.06 3600.00 1.92 0.06 60.00
125 4.23 3750.00 2.08 0.07 62.50
130 4.40 3900.00 2.17 0.07 65.00

Author: Unist
Last update: 2020-03-11 19:12


What is the right amount of air pressure/PSI that I need for my lubricator?

60-100 PSI (413 - 689 kPa)

Author: Unist
Last update: 2020-03-10 21:15


Unist MQL Systems » Troubleshooting

I am getting a mist and it's bothering workers. What do I do?

Machining with minimum quantity lubrication has been shown to produce fewer emissions than flood cooling. It is, in fact, a low-emission process. Unfortunately, when starting with MQL, many shops think that more is better so they blast as far too much air through the MQL nozzles and literally create a fog or mist of lubricant in the air. This is not MQL! A properly adjusted MQL system uses just enough air velocity to drive the lubricant to the tool, not enough to drive it around the block!

Just as less is better with the air, closer is better with the nozzle. The longer the distance that the nozzle needs to spray, the more airflow is needed to carry aerosol and the higher the likelihood of an unwanted mist being generated. In closed machines, an extraction system can help with this. In open systems, putting the nozzle closer to the cut helps. The fluid output should be virtually invisible. If you see a mist spraying from an external nozzle, you will likely see fogging in the plant.

Unless you are working with very small chips, as in micro-cutting, trying to blow the chips away with air from the fluid delivery spray will only create a fog and use more fluid than is necessary. Use a separate chip removal approach, such as an air blow-off or a vacuum, to remove chips if needed.

On a Coolubricator or Serv-O-Spray system the amount of air that mixes with fluid at the nozzle tip can be adjusted with the air metering screw. Turn the metering screw counter-clockwise to increase the air flow and clockwise to decrease the air flow. A good initial setting is open about from ¼ to ½ of a turn.detail of air metering screw

Author: Unist
Last update: 2020-03-12 13:18


How do I prime my Unist MQL System?

If fluid falls below refill level, your system could begin to pump air into the oil delivery line. Should this happen, the system needs priming. The system may prime itself simply by adding fluid to the reservoir. If not, loosen the drain plug until fluid flows freely. Do not remove the drain plug completely or you may have a mess on your hands! Tighten drain plug and operate system until fluid pumps properly.

 

 

 

 

 

Author: Unist
Last update: 2020-03-10 21:20


How do I download an electronic copy of my product manual?

where to find download codeUnist Product Manuals are available in electronic format (.PDF) for Unist customers. Most Product Manuals in electronic format require a unique password to download.  This password can be found in the inside front cover of your printed manual or can easily be retrieved from Unist support. See below for more information.

 

I have my printed manual but would like to download a .PDF of my Product Manual.

Locate the Product Manual download code on the inside front cover of your printed Product Manual then a) scan the QR code with a QR code-compatible smart phone (your phone will be directed to a download webpage), enter your passcode (to the left of the QR code and below the web address) in the field or b) Type the web address into your web browser and enter your passcode (to the left of the QR code and below the web address) in the field.  Right-click the appropriate file and choose 'save as' or equivalent to save the file to your computer.

I lost my printed manual!  What do I do?

Call Unist at 616.949.0853 (Intl) or 800.253.5462 (US/CAN) or email: salessupport@unist.com

Author: Unist
Last update: 2020-03-18 18:49


Unist Uni-Roller® Systems (stock lubricators) » About Uni-Roller® Systems

Which rollers are best for my application? Does the viscosity of the oil matter?

The correct rollers for your application depend on your fluid of choice. In most cases, our polyester felt roller covers will offer the best performance. For vanishing oils and for thin stock that is narrower than the overall width of the roller, our polyurethane foam roller covers may be a better choice. Viscosity of the fluid plays a small role but there are other factors to consider. Contact Unist with details on your specific application and fluid type and we'll be happy to make a recomendation!

Author: Unist
Last update: 2020-03-11 13:18


How hard is it to get parts for my Uni-Roller® System?

Parts are in stock and in most cases can be sent out the next day.

Author: Unist
Last update: 2020-03-11 13:26


How fast can I run my press and still lubricate my stock effectively with a Uni-Roller system?

It depends on the lubricant in some cases, but a general guideline is that Uni-Roller® type C units can run up to 100 ft/min and Uni-Roller® type S units can run up to 500 ft/min.

Author: Unist
Last update: 2020-03-11 13:28


How long does it take from the time I order my Uni-Roller system until it ships?

Usually 2-3 weeks

Author: Unist
Last update: 2020-03-11 13:29


How long can I expect my Uni-Roller system's roller covers to last?

Usually 9 months, although it depends on the application and the condition of the metal (burrs on the edges will damage the covers and shorten their lifespan)

Author: Unist
Last update: 2020-03-11 13:32


Will my fluid work with a Uni-Roller system?

Contact us. We may have already tested your particular fluid. We have a database that includes hundreds of fluids we've tested. If we haven't tested your fluid, send us a sample for us to test for you.

Author: Unist
Last update: 2020-03-11 13:33


How thin a film of lubricant can the uni-roller system apply?

This entry is in revision and can not be displayed.

Author: Unist
Last update: 2020-03-11 13:35


How are Uni-Roller® rollers different than ordinary rollers?

Unist's patented internally-fed roller design is not your ordinary 'paint roller.' Our rollers feature a either a polyester foam or felt cover surrounding a perforated stainless steel roller core. Fluid is evenly metered using our programmable fluid controller and evenly applied to the cover from the inside-out by our internal fluid dispensing tubes. The result is a uniform top and bottom coating of fluid to your coil or blank stock resulting in a reduction in mess and waste and increased production rates because all critical die points interact with properly lubricated stock.

 

internally fed roller design

Author: Unist
Last update: 2020-03-11 13:37


What is the ROI on a Unist Uni-Roller® system?

Our Uni-Roller® systems deliver return on investment in less than six months. That's what many of our customers report. By applying the proper amount of fluid, Uni-Roller® uses 50 to 90% less lubricant. Plus it decreases the mess, the parts cleaning, fluid recycling and costs associated with in-die spray systems, rag technology and externally lubricated rollers.

Author: Unist
Last update: 2020-03-11 13:39


Unist Uni-Roller® Systems (stock lubricators) » System setup

What can be used for an input?

A proximity sensor or a dry contact switch closure can be used for an input. The proximity sensor must be 10-30 VDC, NPN, normally open. The dry contact switch closure can be taken from a limit switch, a push button, a counter, a relay, or other source. Do not connect any external voltage to an input!

Author: Unist
Last update: 2020-03-11 13:41


My new setup created with Auto Setup delivers too little fluid and I would like to try doubling the amount, what should I do?

In order to double the amount of fluid you can either double the duration so that the valves stay on for twice as long, or you can cut the count value in half so that the valves come on twice as often.

Author: Unist
Last update: 2020-03-11 13:42


If my tank pressure is increased after the fluid flow was calibrated, how will my existing setups be affected?

Increasing your tank pressure will increase the flow rate of your fluid, which will lead to dispensing more fluid to your rollers or other lube points.

Author: Unist
Last update: 2020-03-11 13:45


Will recalibrating flow rate for new tank pressure make my existing setups work correctly?

No, the new flow rate will not make your existing setups work correctly. Once the flow rate is adjusted, the new flow rate will only affect new setups created in Auto Setup. Any existing setups will need to be adjusted manually or re-created using Auto Setup.

Author: Unist
Last update: 2020-03-12 13:15


If I want to change fluids, and I am satisfied with the amount of fluid that I am currently applying, how can I ensure the same amount will be applied with the new fluid?

In order to ensure the same amount of the new fluid is applied, adjust the tank pressure so that the flow rate of the new fluid matches that of the old fluid.

Author: Unist
Last update: 2020-03-11 13:49


What effect would doubling the lube film thickness setting have on existing setups?

Doubling the lube film thickness will have no affect on existing setups. However, all setups created after the change by using Auto Setup will take the new lube film thickness setting into account.

Author: Unist
Last update: 2020-03-11 13:51


If I am using 2 fluids, how can I make sure that Auto Setup will work for either fluid?

Independently adjust the pressure of the two tanks so that both fluids have the same flow rate. Enter the measured flow rate in the Configure Auto Setup menu. Any job that is created with Auto Setup will calculate the proper values regardless of which fluid is being used.

Author: Unist
Last update: 2020-03-11 13:52


Why would I ever want to use more than one input?

You may want to use more than one input when you have some valves that you want to control independently from the rest of the valves. For example, if you have a combination of rollers and spray nozzles, you would probably use a limit switch to control the valves to the rollers. However, you may want to use a proximity sensor to detect whether a part is in the proper position to be sprayed with the spray nozzles.

Author: Unist
Last update: 2020-03-11 13:54


Why is it difficult to use one control panel for more than one press?

It is difficult to use one control panel for more than one press because usually the different presses are running different jobs at different speeds. It is also difficult because each press may run multiple jobs so the control panel needs to be set up so that it is capable of running any job on any press at any time. One control panel could control more than one press only if each press were running dedicated jobs.

Author: Unist
Last update: 2020-03-11 13:55


What is the purpose of the minimum valve duration setting?

The purpose of the minimum valve duration setting is to help prolong the life of the valves. When Auto Setup creates a new setup, the system will calculate the duration of the valves to be as short as possible. With the minimum valve duration setting, there is some control as to how short that duration will be. As an example,let’s say that Auto Setup calculates that the valves need to open every stroke of the press for 0.050 seconds in order to apply the desired amount of fluid. The problem with this is that the valve is going to turn on very frequently for a very short amount of time. However, if the minimum valve duration was set to 0.250 seconds, then the valves would only need to turn on every fifth stroke of the press. The number of times that the valves open is decreased, but the same amount of fluid is applied by leaving the valves open for a longer period of time.

Author: Unist
Last update: 2020-03-11 13:56


Every time I use the Auto Setup feature, the system consistently calculates very high count values. What should I do?

If you consistently get high count values when you use the Auto Setup feature, you should probably decrease your minimum valve duration. The problem with having high count values is that you don’t replenish the fluid in the rollers very often, which can lead to large cycles of having a lot of fluid in the rollers to having very little fluid in the rollers. If you decrease your minimum valve duration, your count values will decrease as well, which turn your valves on more often and helps average out the cycle of having too much fluid in a roller versus too little fluid in the rollers. Another option is to decrease the fluid pressure to decrease the flow rate and then recalibrate the flow. With less flow, the system would compensate (if Auto Setup is used) by turning the valves on more often.

Author: Unist
Last update: 2020-03-11 13:58


Unist Uni-Roller® Systems (stock lubricators) » Troubleshooting

How do I download a .PDF of my product manual?

where to find download codeUnist Product Manuals are available in electronic format (.PDF) for Unist customers. Most Product Manuals in electronic format require a unique password to download. This password can be found in the inside front cover of your printed manual or can easily be retrieved from Unist support. See below for more information.

 

I have my printed manual but would like to download a .PDF of my Product Manual.

Locate the Product Manual download code on the inside front cover of your printed Product Manual then a) scan the QR code with a QR code-compatible smart phone (your phone will be directed to a download webpage), enter your passcode (to the left of the QR code and below the web address) in the field or b) Type the web address into your web browser and enter your passcode (to the left of the QR code and below the web address) in the field. Right-click the appropriate file and choose 'save as' or equivalent to save the file to your computer.

I lost my printed manual! What do I do?

Call Unist at 616.949.0853 (Intl) or 800.253.5462 (US/CAN) or email: salessupport@unist.com

Author: Unist
Last update: 2020-03-18 19:01


Unist Uni-Roller® Systems (stock lubricators) » SPR-2000™ Programmable Fluid Controller

Is there a battery in my SPR-2000® control panel?

No, there is no battery in the panel. However, all of the systems data is stored in an EEPROM so there should be no loss of data in the event of a power failure.

Author: Unist
Last update: 2020-03-11 13:24


What are the limitations of flow sensors?

Flow sensors can be used to monitor the flow from a valve each time it is actuated. They work by watching for flow every time a valve is actuated and then transmitting a signal to the system . Once the system has confirmed flow, it doesn’t monitor the flow sensor again until the next valve cycle. As a result, if the duration is quite long, and flow is confirmed within the first .5 second, the system would not detect it if the flow stopped after that time until the next cycle. Another limitation is that the sensors can not differentiate between the flow of fluid or air. As a result, if the fluid reservoir runs dry so air is flowing through the valve instead of fluid, it would not create an alarm. In this case, a low level switch in the fluid reservoir would detect the problem. One other limitation is that since a flow sensor requires some time to sense flow, it is usually not possible to detect flow for a duration of less than about 250 milliseconds.

Author: Unist
Last update: 2020-03-11 13:25


What happens if power is interrupted?

Once power is restored to the system, the system will start up in the running status and will be using the same setup it was running before the power failure. All data that was in the system is saved in a EEPROM so there should be no loss of data.

Author: Unist
Last update: 2020-03-11 14:00


How can an SPR-2000 interface with my press controls?

If purchased with the Press Control Interface option, the SPR-2000 can directly communicate with press control systems manufactured by Honeywell (Wintriss/SmartPAC), Link Electric, Rockford Systems and Cieco. The Press Control Interface option allows the SPR-2000 to automatically run the correct Setup when the job number is changed at the press control system. Refer to the SPR-2000 Press Control Interface manual for specific requirements for each press control system.

Author: Unist
Last update: 2020-03-11 14:02


How does enabling the access code affect the use of the system?

When the access code is enabled, the system will require the user to enter a code for access to the Configure and Edit modes. The Mem and Alarm modes will still be accessible without entering the access code. This grants the operator the freedom to change which setup is running, but not change the values in the setups or the system configuration.

Author: Unist
Last update: 2020-03-11 14:03


Is there any way to disable the PRIME button to prevent accidental use?

Yes, it is possible to disable the PRIME button. Please refer to page 24-25 in the Operational Overview section of your manual for details on the exact procedure.

Author: Unist
Last update: 2020-03-11 14:05


I lost my Uni-Roller or SPR-2000 operator's manual. What do I do?

Author: Unist
Last update: 2020-03-11 14:06


If my fluid has a density of 7.3 lb/gallon, and I would like 290 mg of fluid applied per square foot, what do I need to do to achieve this?

Refer to the Film Thickness Reference Chart on pages 36-38 of your operator's manual (download chart ). Find the density of your fluid along the left or right side of the chart and find your desired amount of fluid along the top or bottom of the chart. From there, you can find your lube film thickness setting (in microns). The lube film thickness setting should be entered in the Set Lube Thickness menu under the Configure Auto Setup menu. In order for the new film thickness to take effect, you must create a new setup using Auto Setup. The new setup should apply enough fluid so that you obtain your desired value of 290 mg per square foot.

Author: Unist
Last update: 2020-03-11 14:08


How do I connect an input to my SPR-2000®'s circuit board?

Refer to the lower left hand corner of the diagram on page 30 of your SPR-2000® operator's manual in order to see where the input connects to the circuit board. CAUTION: Be sure that the input connects to the upper tier of connectors on the circuit board.

Author: Unist
Last update: 2020-03-11 14:09


If I am using 2 fluids, how can I ensure that Auto Setup will work for either fluid?

Independently adjust the pressure of the two tanks so that both fluids have the same flow rate. Enter the measured flow rate in the Configure Auto Setup menu. Any job that is created with Auto Setup will calculate the proper values regardless of which fluid is being used.

Author: Unist
Last update: 2020-03-12 13:15


If I want to change fluids, and I am satisfied with the amount of fluid that I am currently applying, how can I ensure the same amount will be applied with the new fluid?

In order to ensure the same amount of the new fluid is applied, adjust the tank pressure so that the flow rate of the new fluid matches that of the old fluid.

Author: Unist
Last update: 2020-03-11 14:41


Will recalibrating the flow rate for a new tank pressure make my existing setups work correctly?

No, the new flow rate will not make your existing setups work correctly. Once the flow rate is adjusted, the new flow rate will only affect new setups created in Auto Setup. Any existing setups will need to be adjusted manually or re-created using Auto Setup.

Author: Unist
Last update: 2020-03-11 14:42


Tank pressure was increased after fluid flow was calibration, how are existing setups affected?

Increasing your tank pressure will increase the flow rate of your fluid, which will lead to dispensing more fluid to your rollers or other lube points

Author: Unist
Last update: 2020-03-12 13:17


A new setup created using Auto Setup delivers too little fluid - I would like to try doubling the amount, what should I do?

In order to double the amount of fluid you can either double the duration so that the valves stay on for twice as long, or you can cut the count value in half so that the valves come on twice as often.

Author: Unist
Last update: 2020-03-12 13:22


What can be used for an input with the SPR-2000™?

A proximity sensor or a dry contact switch closure can be used for an input. The proximity sensor must be 10-30 VDC, NPN, normally open. The dry contact switch closure can be taken from a limit switch, a push button, a counter, a relay, or other source. Do not connect any external voltage to an input!

Author: Unist
Last update: 2020-03-11 14:49


When I use the Auto Setup feature, the system calculates very high count values. What should I do?

If you consistently get high count values when you use the Auto Setup feature, you should probably decrease your minimum valve duration. The problem with having high count values is that you don’t replenish the fluid in the rollers very often, which can lead to large cycles of having a lot of fluid in the rollers to having very little fluid in the rollers. If you decrease your minimum valve duration, your count values will decrease as well, which turn your valves on more often and helps average out the cycle of having too much fluid in a roller versus too little fluid in the rollers. Another option is to decrease the fluid pressure to decrease the flow rate and then recalibrate the flow. With less flow, the system would compensate (if Auto Setup is used) by turning the valves on more often.

Author: Unist
Last update: 2020-03-12 13:16


What does the minimum valve duration setting do?

Basically, the purpose of the minimum valve duration setting is to help prolong the life of the valves. When Auto Setup creates a new setup, the system will calculate the duration of the valves to be as short as possible. With the minimum valve duration setting, there is some control as to how short that duration would be. As an example, let’s say that Auto Setup calculates that the valves need to open every stroke of the press for 0.050 seconds in order to apply the desired amount of fluid. The problem with this is that the valve is going to turn on very frequently for a very short amount of time. However, if the minimum valve duration was set to 0.250 seconds, then the valves would only need to turn on every fifth stroke of the press. The number of times that the valves stay open is decreased, but the same amount of fluid is applied by leaving the valves open for a longer period of time.

Author: Unist
Last update: 2020-03-12 13:19


In what circumstance would it work well to use one control panel for more than one press?

One control panel could control more than one press only if each press were running dedicated jobs.

Author: Unist
Last update: 2020-03-11 15:19


Why is it difficult to use 1 control panel for more than 1 press?

It is difficult to use one control panel for more than one press because usually the different presses are running different jobs at different speeds. It is also difficult because each press may run multiple jobs so the control panel needs to be set up so that it is capable of running any job on any press at any time.

Author: Unist
Last update: 2020-03-12 13:14


Why would I want to use more than 1 input?

You may want to use more than one input when you have some valves that you want to control independently from the rest of the valves. For example, if you have a combination of rollers and spray nozzles, you would probably use a limitswitch to control the valves to the rollers. However, you may want to use a proximity sensor to detect whether a part is in the proper position to be sprayed with the spray nozzles.

Author: Unist
Last update: 2020-03-12 13:24


If I double the lube film thickness what happens to my existing setups?

Doubling the lube film thickness will have no affect on existing setups. However, all setups created after the change by using Auto Setup will take the new lube film thickness setting into account.

Author: Unist
Last update: 2020-03-12 13:25


Every time I create a setup using Auto Setup, I always have to either double my duration time or cut my count value in half in order to get the proper amount of fluid. What can I change so that any future setups that I create will have enough fluid?

If you continually have to adjust your duration and count values to get the right amount of fluid, change your Film Thickness parameter in the Configure Auto Setup menu to reflect the changes you have to make. For example, if you always have to double the amount of fluid after creating a setup, double your Film Thickness parameter. NOTE: If you change an Auto Setup parameter, it will only affect setups created after the change. The change will not have any affect on existing setups.

Author: Unist
Last update: 2020-03-11 15:29