Work Rolls From Ø30 mm to Ø200 mm for Leveller Cassettes
This range covers the wider diameter band used in leveller cassettes, from the small Ø30 mm rolls used on thin strip up to Ø200 mm rolls for heavier duty. All sizes share the same material and heat treatment approach so performance is consistent across a plant with mixed machines.
- Diameters Ø30, Ø45, Ø70 and Ø200 mm
- Surface hardness HRC 58-62 and above
- Deep hardened layer through the working surface
- Ground to micron level tolerances
Key Benefits
Why a single supplier across diameters helps.
One Specification Across Machines
The same material and heat treatment across Ø30 to Ø200 mm keeps roll behaviour predictable when a plant runs several cassette types.
Wear And Indentation Resistance
HRC 58-62 and above with a deep hardened layer resists wear and indentation under continuous strip contact.
Fits Existing Cassette Designs
Industry standard sizes cater to a wide range of applications and cassette designs.
Where It Is Used
Applications by diameter.
- Small diameter cassettes for thin gauge strip
- Medium diameter cassettes for general strip levelling
- Large diameter rolls for heavier plate duty
- Mixed cassette plants standardising roll supply
Who It Is For
- Plants operating several leveller types
- Maintenance stores rationalising roll spares
- Machine builders supplying a range of cassettes
- Buyers sourcing a diameter their usual supplier does not carry
Problems It Solves
- Multiple suppliers for different roll diameters
- Inconsistent hardness between roll batches
- Indentation damage on softer rolls
- Waiting on long lead times for non catalogue sizes
Technical Features
Shared specification across the range.
Alloy And Tool Steel
High grade alloy steel and advanced tool steels are used across the diameter range.
Specialised Heat Treatment
Heat treatment produces HRC 58-62 and above with a deep hardened layer regardless of diameter.
Micron Level Grinding
Every roll is ground to micron level tolerances for a perfect fit in the cassette.
Specifications
Standard diameters listed. Intermediate sizes are produced to drawing.
| Standard Diameters | Ø30 mm, Ø45 mm, Ø70 mm, Ø200 mm |
|---|---|
| Surface Hardness | HRC 58-62 and above |
| Hardened Layer | Deep hardened layer |
| Material | High grade alloy steel and advanced tool steel |
| Grinding | Micron level tolerances |
| Application | Leveller cassettes for strip processing lines |
Materials
- High grade alloy steel
- Advanced tool steel
- Optional surface treatment by duty
Manufacturing Process
Diameter And Drawing Check
The required diameter, barrel and journal details are confirmed before production.
Turning
Bar is turned with allowance for heat treatment movement.
Heat Treatment
Surface hardness of HRC 58-62 and above is developed with a deep case.
Grinding And Inspection
Rolls are ground to micron tolerances and inspected as a set.
Quality Control
- Hardness testing per roll
- Dimensional inspection to micron tolerance
- Straightness and runout verification
- Batch consistency check across a set
Customization Options
- Intermediate diameters to drawing
- Barrel and journal detail per cassette
- Hardness matched to strip material
- Sets supplied marked by position
Use Guide
- Order by diameter and barrel length from the cassette drawing
- Replace full sets to keep the roll gap consistent
- Check journal seats when installing larger diameter rolls
- Keep rolls supported in storage, especially long small diameter rolls
How It Compares
Choosing within the range.
| Ø30 to Ø70 mm rolls | Used in multi roll cassettes where small diameter gives tighter bending for thin strip. |
|---|---|
| Ø200 mm rolls | Chosen for heavier duty levelling where roll rigidity matters more than bend radius. |
| Mixed supplier sourcing | One specification across all diameters keeps hardness and tolerance consistent across your machines. |
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Read MoreWork Roll Ø30 to Ø200 mm for Leveller Cassettes FAQ
Which diameters are standard?
Ø30 mm, Ø45 mm, Ø70 mm and Ø200 mm. Other diameters within that range are produced to drawing.
Is the hardness the same across all sizes?
Yes, HRC 58-62 and above with a deep hardened layer, from the same heat treatment approach across the range.
How accurate is the grinding?
Rolls are ground to micron level tolerances so they fit cassette seats without adjustment.
Can you supply rolls for cassettes you did not build?
Yes. Send a sample roll or the cassette drawing and we produce an equivalent.
Do you supply complete sets?
Yes, sets can be supplied matched and marked by cassette position.
What do you need to quote?
Diameter, barrel length, journal detail, quantity per set and how many sets per year.
Order Rolls Across Your Cassette Range
Send your diameters and cassette drawings and we quote the full roll programme.