Custom Steel & Metallurgy Rubber Rollers
Wolorin manufactures custom rubber-covered rollers for steel strip, steel sheet, and metal coil processing lines.
These rollers are commonly used in cleaning, pickling after-treatment, galvanizing, color coating, slitting, recoiling, inspection, conveying, and surface protection sections. They help with traction, guiding, pinch contact, light pressing, cleaning, dust removal, and auxiliary strip handling.
Steel processing lines are different from ordinary web handling lines. The strip is heavier, the edges are harder, and the surface may carry oil, water, cleaning liquid, oxide scale, zinc dust, or metal particles. If the roller cover, hardness, surface finish, or structure is not suitable, the line may face slipping, tracking problems, edge cutting, fast wear, surface marks, or unstable contact.
If you already have drawings and dimensions, you can send them directly for custom production. If the information is not complete yet, you can start with the roller position, site photos, and current problem.
Where Rubber Rollers Are Used in Steel Processing Lines
Rubber-covered rollers are often used after the main rolling process, especially in contact positions where the strip needs to be moved, guided, cleaned, supported, or protected.
Common applications include:
- Steel strip cleaning lines
- Pickling, degreasing, and rinsing sections
- Galvanizing line entry, exit, and after-treatment sections
- Color coating and painted steel sheet lines
- Protective film lamination positions
- Slitting, recoiling, and inspection lines
- Auxiliary conveying and support positions for galvanized sheet, color-coated sheet, stainless steel sheet, and cold-rolled strip
In these areas, the roller is not only expected to rotate. It must keep stable contact with the strip, reduce slipping, protect the surface, and withstand oil, dust, edge impact, and repeated running.
What Steel Line Rollers Usually Need to Handle
Stable Traction on Heavy Strip
Bridle rolls, pinch rolls, traction rolls, and tension-related contact positions need enough grip to move the strip without slipping or speed mismatch.
For many steel strip traction and pinch positions, hardness is often confirmed from around 70–95 Shore A, depending on strip weight, line speed, contact pressure, and wear conditions. Heavier or more abrasive positions may require a harder and more wear-resistant cover.
Oil, Water, and Cleaning Liquid
Steel strip may carry rolling oil, rust-prevention oil, emulsion, cleaning liquid, or water.
If the cover material is not suitable, the roller may swell, soften, become sticky, lose grip, or wear faster. For these positions, the actual contact medium should be checked before selecting NBR, PU, FKM, or a modified rubber compound.
Oxide Scale, Metal Dust, and Edge Burrs
Oxide scale, zinc dust, metal powder, and hard particles can accelerate surface wear. Strip edges can also cut or damage the roller cover, especially when the strip tracks to one side or has burrs.
For these cases, the cover thickness, hardness, edge design, surface structure, and grinding allowance should be reviewed together. Simply choosing a harder material may not solve all edge damage problems.
Surface Protection for Finished Strip
Galvanized sheet, color-coated sheet, stainless steel sheet, and finished metal surfaces need stable contact without obvious marks, scratches, contamination, or pressure lines.
These positions often require a more controlled surface finish, proper hardness, clean cover material, and even contact pressure across the roller face.
Typical Application Scenarios
1. Cleaning Line Exit: Wet or Oily Strip Slips on the Roller
After cleaning, degreasing, or rinsing, the strip surface may still carry water, oil film, cleaning liquid, or fine particles. A smooth or unsuitable roller surface may cause slipping, unstable liquid carryout, surface stickiness, or fast cover wear.
For this type of position, the roller design may need:
- Better traction under wet or oily contact
- Rough-ground, textured, or grooved surface
- Material resistance to water, oil, and cleaning chemicals
- Suitable hardness for the pressure and strip weight
- A surface that is easy to clean and does not contaminate the strip
2. Galvanized or Color-Coated Strip: Traction Is Needed, but the Surface Must Be Protected
In galvanizing, color coating, and after-treatment sections, the roller may need to guide or drive the strip while protecting the finished surface.
If the surface is too aggressive, it may leave marks. If it is too smooth or too soft, the strip may slip or run unstably.
For this type of application, the key points are:
- Whether the roller contacts a finished or semi-finished surface
- Whether oil, water, zinc dust, or coating residue is present
- Whether the roller needs more traction or more surface protection
- Whether the surface roughness should be fine, rough-ground, textured, or release-oriented
3. Slitting, Recoiling, and Inspection Lines: Strip Edges Damage the Cover
In slitting, recoiling, and inspection sections, strip edge condition directly affects roller life. Burrs, uneven edge trimming, side tracking, and concentrated pressure can cause edge cutting, chipping, or local wear on the roller cover.
For this type of problem, the roller may need:
- Better cut resistance and wear resistance
- Proper roller face width and edge chamfer
- Enough cover thickness and future grinding allowance
- A surface design suitable for the actual strip width and running path
- Review of whether the strip keeps running against the same side of the roller
Common Roller Types for Steel and Metal Coil Lines
| Roller Type | Typical Role in Steel Lines | Main Concerns |
|---|---|---|
| Bridle / Traction Roll | Drives and stabilizes strip movement | Grip, wear resistance, tension stability, speed synchronization |
| Pinch Roll | Holds and feeds strip at entry, exit, or cutting sections | Uniform pressure, anti-slip contact, edge protection |
| Guide Roll | Helps control strip direction and tracking | Running stability, surface durability, wear resistance |
| Nip / Press Roll | Used in light pressing, coating, or protective film contact | Even pressure, low marking, surface protection |
| Cleaning / Dust Removal Roll | Removes dust, particles, or surface contamination | Easy cleaning, particle control, no secondary contamination |
| Conveying / Support Roll | Supports or transports strip in auxiliary sections | Load capacity, wear resistance, strip surface protection |
Typical Design Points for Steel Processing Rubber Rollers
Different steel lines have different strip thickness, width, speed, tension, temperature, and surface requirements. The following points are usually reviewed before production.
| Design Point | Common Direction for Steel / Metal Coil Lines |
|---|---|
| Hardness | Often reviewed from 65–95 Shore A; bridle, traction, pinch, and guide positions commonly fall around 70–95 Shore A |
| Cover Thickness | Often reviewed from around 10–25 mm, depending on load, roller structure, contact pressure, and future grinding allowance |
| Temperature | Cleaning, galvanizing after-treatment, color coating, or nearby hot sections may involve continuous contact around 80–125°C; higher temperature or complex media require separate material review |
| Surface Roughness | Wet, oily, or traction-focused positions may use rough-ground or textured surfaces; some traction surfaces can reference Ra 3–10 μm depending on strip condition |
| Surface Profile | Smooth ground, rough ground, traction texture, spiral groove, diamond groove, herringbone groove, or drainage groove can be selected according to grip, liquid removal, and anti-slip needs |
| Material Direction | PU, NBR, EPDM, FKM, silicone, or modified rubber compounds can be selected based on oil, temperature, wear, surface protection, and chemical exposure |
These are not fixed values for every steel line. The final design should match the actual roller position, strip condition, contact pressure, working temperature, and current failure mode.
Material Direction
Material selection should start from the roller’s job on the line, not from the material name alone.
- PU / Polyurethane: often used where wear resistance, traction, load capacity, and service life are important
- NBR / Nitrile Rubber: often used for rolling oil, rust-prevention oil, and general industrial oil contact
- FKM / Fluoroelastomer: suitable for higher temperature, oil, or more complex media exposure
- EPDM: suitable for moisture, water, cleaning, weathering, or some open-environment positions
- Silicone: used where heat resistance, release, low adhesion, or surface protection is more important
- Modified Rubber Compounds: used for wear resistance, cut resistance, anti-contamination, anti-static, or special surface requirements
If you already know the material direction, you can send the drawing or old roller details directly. If you are not sure, you can start with the roller position and current problem.
Related Pages
For thin foil or precision metal foil handling, see
For coating transfer, adhesive control, and lamination process details, see
For a specific roller position, you can also check:
For material-specific information, you can check:
Before Production
For steel and metallurgy roller projects, Wolorin can review the key details before production, including:
- Drawing or old roller size
- Roller face length and diameter
- Shaft and mounting details
- Cover hardness and thickness
- Surface finish or groove requirement
- Contact material and working temperature
- Oil, water, cleaning liquid, dust, or chemical exposure
- Current problem, such as slipping, fast wear, edge damage, or surface marking
Request a Quote
If you already have drawings and dimensions, you can send them directly for custom production.
If the information is not complete yet, you can send the roller position, photos, and current issue first. We can confirm the suitable material, hardness, surface, and structure direction based on the actual working condition.