1660 mm Precision Roll Units for Scale Breaking Machines
These roll units are the support side of a 1660 mm scale breaking machine on a wide cold rolling pickling line. They hold work rolls and intermediate rolls against bending, which is what decides strip flatness and finished quality on 0.5-12 mm material.
- Built for 1660 mm wide lines
- Handles metal strip from 0.5 mm to 12 mm
- High strength alloy equivalent to DIN 1.2344
- Modular quick disassembly and constant temperature cooling structure
Key Benefits
Why plants specify these units.
Bending Controlled On Wide Strip
Supporting work and intermediate rolls alleviates roller bending and deformation, which is what keeps flatness even across 1660 mm.
Less Scrap Per Coil
Stable geometry cuts scrap waste at the head and tail and lifts overall line capacity.
Fast Service Access
Modular quick disassembly means a unit can be pulled and replaced without stripping the machine.
Where It Is Used
Line positions.
- Wide cold rolling pickling production lines
- Scale breaking ahead of acid tanks
- Processing of 0.5-12 mm metal sheets and steel coils
- Continuous strip preparation for cold mills
Who It Is For
- Pickling line maintenance teams
- Wide strip mills running 1660 mm lines
- Plants replacing worn scale breaker internals
- Buyers needing non standard unit sizes
Problems It Solves
- Roller bending and deformation during scale breaking
- Flatness variation across wide strip
- Scrap waste from unstable roll geometry
- Slow disassembly during planned maintenance
Technical Features
Construction.
DIN 1.2344 Equivalent Alloy
Units are manufactured from high strength alloy steel equivalent to DIN 1.2344, shaped by CNC precision machining and standardised robotic assembly.
Constant Temperature Cooling
A constant temperature cooling structure keeps unit geometry stable through continuous production.
Tight Dimensional Control
Dimensional tolerances are held in the 0.01-0.05 mm class so units are interchangeable across positions.
Specifications
Non standard customization is supported. The values below describe the 1660 mm standard build.
| Line Width | 1660 mm |
|---|---|
| Strip Thickness Range | 0.5-12 mm |
| Material | High strength alloy steel equivalent to DIN 1.2344 |
| Manufacturing | CNC precision machining with standardised robotic assembly |
| Dimensional Tolerance | 0.01-0.05 mm class |
| Cooling | Constant temperature cooling structure |
| Service Feature | Modular quick disassembly |
| Yield Strength Reference | 355 MPa class strip processing |
Materials
- DIN 1.2344 equivalent alloy steel
- Hardened and ground roll surfaces
- Sealed load bearing units
Manufacturing Process
Unit Data Review
Line width, strip range and the existing unit dimensions are confirmed before production.
CNC Machining
Frames and roll seats are CNC machined to the 0.01-0.05 mm tolerance class.
Heat Treatment And Grinding
Roll surfaces are hardened and ground for wear resistance under scale breaking load.
Robotic Assembly
Standardised assembly keeps geometry consistent from unit to unit.
Quality Control
- Material certificate for the alloy grade
- CNC dimensional inspection report
- Hardness testing on roll surfaces
- Assembly geometry verification against international industrial testing standards
Customization Options
- Non standard widths and unit geometry
- Roll diameter and count per your machine
- Cooling arrangement matched to line temperature
- Spare units for rotating replacement
Use Guide
- Keep the cooling circuit clear, geometry depends on it
- Replace units by row to keep support even
- Record unit position before removal for reassembly
- Inspect roll surfaces when scale removal quality drops
How It Compares
Against lower specification units.
| Standard alloy steel units | DIN 1.2344 equivalent material holds hardness under the thermal and mechanical load of scale breaking. |
|---|---|
| Units without cooling structure | Constant temperature cooling keeps dimensions stable through long continuous runs. |
| Fully welded non modular units | Modular quick disassembly shortens the maintenance window significantly. |
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Read More1660 mm Precision Roll Units for Scale Breaking Machines FAQ
What strip range do these units handle?
They are built for scale breaking of 0.5-12 mm metal strip on 1660 mm wide cold rolling pickling lines.
What material are they made from?
High strength alloy steel equivalent to DIN 1.2344, CNC precision machined and assembled to a standardised process.
What tolerances do you hold?
Dimensional tolerances in the 0.01-0.05 mm class, which is what makes units interchangeable between positions.
Can you make a size other than 1660 mm?
Yes, non standard customization is supported. Send your line width and unit dimensions.
What is the cooling structure for?
It holds unit temperature constant so thermal growth does not change roll geometry during continuous production.
What do you need to quote?
Line width, strip thickness range, unit drawing or sample, quantity of units and annual usage.
Replace Your Scale Breaker Roll Units
Send your unit drawing or photos with line width and strip range and we quote a replacement set.