Precision fluid and grease dispensing for spot applications and equipment lube points.


Precise fluid application with manual or PLC control for assembly processes and OEM systems.


What is the benefit of positive displacement? How do atomized air spray systems work?


Uni-Roller® S2

Uni-Roller® S2
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Uni-Roller® S2
Uni-Roller® S2
The Uni-Roller® S2 supplies precision lubrication for top and bottom of coil stock at line speeds up to 500 ft/min (152 m/min). Ideal for stamping, roll forming, fine blanking, deep drawing and punching.
Technical Knowledge Base
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Related Testimonials
“I can truly say that we picked the right lubrication system for our equipment.”
“Previous to 1996 Dietrich Industries was using a number of lubrication devices on their roll forming lines. Since then we have standardized on the Unist system, primarily due to the fact that they are much more efficient in the application of lubricant. We have less run out of lubricant on the . . .”  
[ read more ]
Randall A. Torok - Director of Purchasing, Dietrich Industries, Inc.
“The roller coater (Uni-Roller® S2) has far exceeded our expectations and has allowed us to bid on jobs we would have had to pass on before. ”
“The biggest benefit from the roller coater (Uni-Roller® S2), compared to our spray systems on the other presses is the ability to apply lubricant evenly on the bottom as well as the top of the material. With the spray systems, to ensure consistent coverage across the entire sheet often requires . . .”  
[ read more ]
John Essenburg - Production Manager, Grant Industries
“The benefits are endless”
“Until recently, all of Clover Tool’s stamping operations employed spray systems to apply lubricant, “and we sprayed everything―literally, the lubricant went everywhere,” shares Rob Zeni. “As we watched our lube costs continue to escalate over time, including costs related to disposing of spent lube, we decided early in 2018 . . .”  
[ read more ]
Rob Zeni - Vice President and Sales Manager, Clover Tool
View more testimonials
  • Reduce lubricant consumption by 50% or more
  • Cleaner floors & work area
  • Quick-change rollers for easy maintenance

Technical Specifications

    Stock type:
    • Coil stock

    Stock thickness:
    • .005"-.25" (.13mm – 6.35mm)

    Stock width:
    • 3" - 96" (76mm - 2438mm).
      Contact us for other sizes.

    Fluid type:
    • For use with a broad range of water soluble and neat lubricants. Viscosity from 30 – 1000 SUS. Thicker lubricants can be tested by Unist for compatibility.

    Fluid supply:
    • Pressurized 3 gal(11.4L), 6 gal(22.7L), 15 gal(56.8L), 30 gal(113.6L) tank. Also 20 gal(75.7L) poly tank with diaphragm pump. Also can be integrated into customer’s bulk fluid system

    Applicator material:
    • Polyester felt or polyurethane foam


    • NA (see SmartFlow® for controller power requirements)

    • 5/16-18 t-nuts supplied in bottom extrusion slots allow for multiple mounting options. 2 t-nuts per slot provided.

    • Clean, dry, compressed air, 80-100 psi (5.5-6.9 bar),10 SCFM (280 SLPM) minimum

    Options & Accessories

    Roller covers
    Polyurethane foam cover
    Polyurethane foam cover
    Reduces uneven wear on cover when a variety of stock widths and thicknesses are used. Due to limited fluid compatibility, consult Unist.

    Polyester felt cover
    Polyester felt cover
    Extremely durable and compatible with a broad range of fluids.

    Dispenser tube
    Low volume fluid dispenser tube
    Low volume fluid dispenser tube
    For use in applications requiring coverage of 50 mg/ft2 [538 mg/m2] or less.

    Standard fluid dispenser tube
    Standard fluid dispenser tube
    Best choice for most applications with the widest range of fluid compatibility and flow rate.

    Roller set opening/closing
    Solenoid valve
    Solenoid valve
    Ties into control systems to automate opening of roller set.

    Manual valve
    Manual valve
    Manual open/close control of the roller set.

    Air cylinder
    Double pneumatic air cylinder
    Double pneumatic air cylinder
    Required for stock thicknesses over 0.25" [6.35 mm].

    Single pneumatic air cylinder
    Single pneumatic air cylinder
    Preferred method for maintaining pressure on stock and opening the rollers to load a new coil.

    Rotation sensor
    Rotation sensor
    Provides an input signal to a SmartFlow® controller based on roller rotation. Select when an intermittent signal from press is not available.

    Supply & Connections
    In-die quick connect
    In-die quick connect
    Allows for permanent spray nozzle mounting to the die. Ensures nozzles remain in correct position with each die change.

    Fluid Supply Systems
    Fluid Supply Systems
    Your fluid application system needs a steady supply of pressurized fluid. Unist offers a broad range of options to meet your needs.

    Continuous stock lubrication

    The Uni-Roller® S2 lubricator is the ultimate solution for continuous stock lubrication. Combined with a SmartFlow® programmable fluid controller, the Uni-Roller® S2 will consistently apply the correct amount of fluid to both the top and bottom of your coil, day after day.

    • Reduce lubricant consumption by 50% or more
    • Cleaner floors & work area
    • Quick-change rollers for easy maintenance
    uni roller s2

    “We moved to a Unist system and our average tooling downtime per week has dropped by 70%.
    We definitely like what we are seeing. The improvement in downtime has been very rewarding for everyone involved.”
    - Tim Farina ShelterLogic/Arrow Storage Products

    Uni-Roller® S2 applications:

    • Punching
    • Stamping
    • Roll forming
    • Fine blanking
    • Deep drawing
    • Application of rust preventives and other protective coatings

    Delivers return on investment in less than 6 months

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

    The internally-supplied difference
    the Unist internally-fed difference

    The internally-supplied rollers are essential to precisely applying the fluid. Inside each of the rollers is a dispenser tube with small holes placed along its length. Fluid is injected into the dispenser tubes from the fluid controller and dispensed across the inside of the rollers.

    The lubricant is transferred to the stock through durable polyester felt or polyurethane foam roller covers. These cover materials apply the lubricant smoothly and evenly across both the top and bottom of the stock.

    The Uni-Roller® S2 Powered applies the exact amount of lubricant required. This eliminates the mess and waste associated with in-die spray systems and externally lubricated roller systems. The result is not only a cleaner shop, but also significant savings from decreased fluid waste, improved die life, better part quality and increased machine up-time. Many customers have reported savings resulting in a return on investment of less than six months!


    Uni-Roller smooth consistent stock lubrication coating

    Uni-Roller® systems deliver smooth and consistent lubrication.


    The brushed stainless steel guards protect the rollers and guide material when loading coil stock or feeding blanks. With the guards removed for better access, a roller can be changed in about a minute using a single wrench. The Uni-Roller® S2 is built to handle any manufacturing environment without sacrificing ease of maintenance.

    single roller entry side
    single roller exit side

    Built to fit your application

    The Uni-Roller® S2 is modular in design. A single roller set is used for widths of 18” [457.2 mm] or less. For stock over 18” [457.2 mm] wide, multiple 12” [304.8 mm] wide roller sets are staggered and overlapped. Standard sizes are available to accommodate common stock widths, with custom sizes available on request.

    single roller dimensions
    Single roller (coverage up to 18") [457.2 mm]
    Roller coverageA (extrusion length)B (overall width)
    3” [76.2 mm] 12” [304.8 mm] 13.13” [333.5 mm]
    6” [152.4 mm] 12” [304.8 mm] 13.13” [333.5 mm]
    12” [304.8 mm] 18” [457.2 mm] 19.13” [485.9 mm]
    18” [457.2 mm] 24” [609.6 mm] 25.13” [638.3 mm]

    *On units with double air cylinders add 1.4” [35.56 mm] to the pass line and overall height

    multiple roller dimensions
    Multiple rollers (coverage over 18”) [457.2 mm]
    Roller coverageA (extrusion length)B (overall width)
    23” [596.9 mm] 30” [762 mm] 34.16” [867.75 mm]
    35” [889 mm] 42” [1066.8 mm] 46.16” [1172.5 mm]
    46.5” [1181.1 mm] 54” [1371.6 mm] 58.16” [1477.3 mm]
    58” [1473.2 mm] 66” [1676.4 mm] 70.16” [1782.1 mm]
    69.5” [1765.3 mm] 78” [1981.2 mm] 82.16” [2086.9 mm]

    *On units with double air cylinders add 1.4” [35.56 mm] to the pass line and overall height

    Take control with the SmartFlow®

    The SmartFlow® alerts you to issues before they become expensive problems that interrupt or stop your production lines. With the SmartFlow® you'll know immediately if the fluid supply runs low, if fluid pressure varies, or if flow to the applicator is interrupted (Level, pressure, and flow sensors required). The SmartFlow® features an intuitive, easy-to-use interface as well as an access code to prevent unauthorized tampering or changes in fluid settings.

    SmartFlow programmable fluid controller
    • Monitors critical parameters
    • Controls up to 22 outputs
    • Stores up to 250 setups
    SmartFlow touch screen

    Easy to use touch screen interface.

    alarm list

    The SmartFlow® controller can monitor pressure, flow, valve performance and line status.

    create a job

    Job setup wizard makes job creation easy.

    How to Install Pulse R™ | Instructions

    How to Install Pulse R™ | Instructions
    Step by step instructions how to install a Pulse R™ pump onto your Unist Coolubricator™, Serv-O-Spray™, or Saw Blade Lube System™.

    Setting Uni-Roller® Pressure Gauge

    Setting Uni-Roller® Pressure Gauge
    What pressure should your Uni-Roller® be set to? Follow along as we guide you through setting and adjusting the pressure on your Uni-Roller®.

    Uni-Roller | Internally Fed Lubrication

    Uni-Roller | Internally Fed Lubrication
    The Uni-Roller® by Unist ensures even and consistent lubrication for metal forming stock. Replacing flood coolant, the Uni-Roller® can remove the sloppy mess from your operation.

    How to Prime Unist Uni-Roller

    How to Prime Unist Uni-Roller
    Follow along as we demonstrate how to prime your Uni-Roller® using a SmartFlow® controller.

    Metal Forming | Quick Lubrication Adjustment

    Metal Forming | Quick Lubrication Adjustment
    Follow along as we show you how to make micro-adjustments to your stock lubrication using the Unist Uni-Roller® with a SmartFlow® controller.

    SmartFlow® | Press Control Interface

    SmartFlow® | Press Control Interface
    Metal forming is easier than ever with SmartFlow! Now featuring press control interface, stock lubrication can be controlled directly from your press's controller.

    Stamping & Metal Forming Lubrication Solutions

    Stamping & Metal Forming Lubrication Solutions
    An introduction to Unist stock lubrication systems for metal forming

    Using the SmartFlow<sup>®</sup> to prime the Uni-Roller<sup>®</sup> S2 This video shows you how to prime your Uni-Roller<sup>®</sup> S2 using the SmartFlow<sup>®</sup> controller.

    Using the SmartFlow® to prime the Uni-Roller® S2
    When using a Uni-Roller®, properly priming the rollers is an important start up task. Watch this video to learn how the SmartFlow® walks you through priming rollers.

    Testimonial Video - Grant Industries Customer Grant Industries discusses their Unist Uni-Roller system.

    Testimonial Video - Grant Industries
    Customer Grant Industries discusses their Unist Uni-Roller system.

    Changing Roller Covers on a Uni-Roller S2

    Changing Roller Covers on a Uni-Roller S2
    This video shows how to easily remove the Uni-Roller S2's rollers for maintenance.

    MF Minute #4 Adequate Stock Lubrication

    MF Minute #4
    John and Mark discuss the importance of adequate stock lubrication.

    MF Minute #3 SPR-2000 Fluid Controller

    MF Minute #3
    John and Mark discuss the SPR-2000™ programmable fluid controller.

    MF Minute #1 Uni-Roller Systems Overview

    MF Minute #1
    In this Metal Forming Minute, John and Mark provide a basic overview of the Uni-Roller® line of stock lubricators.

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