Chrome Plated Work Rolls of 30 mm Diameter for Tension Levelers
The 30 mm work roll is the common size in many leveler cassettes, big enough to resist deflection yet small enough to bend thin strip properly. Quality is judged on hardness uniformity, hardened layer depth and the toughness of the roll neck, because those decide whether the roll survives an incident on the line.
- 30 mm diameter work roll
- Stainless steel or carbon steel body
- Hardened layer around 5 mm
- Chrome plating around 0.05 mm
Key Benefits
Quality characteristics that matter.
Hardness With Uniformity
High surface hardness combined with good hardness uniformity keeps wear even along the barrel instead of creating a worn band.
Neck Toughness
Good strength and toughness in the roll neck and body is what gives spalling resistance and accident resistance on a real line.
Suited To High Speed Straighteners
The property set is aimed at high speed, large scale, high precision straighteners rather than light duty work.
Where It Is Used
Industries and lines.
- Tension levelers in metal processing
- Automotive part production lines
- Home appliance panel manufacturing
- Construction sheet processing
Who It Is For
- Plants running 30 mm work roll cassettes
- Maintenance stores ordering by diameter
- Processors serving automotive and appliance customers
- Buyers who need stainless rather than carbon steel rolls
Problems It Solves
- Uneven wear along the roll barrel
- Roll neck failure after a strip jam
- Spalling on the working surface
- Corrosion on rolls in wet line sections
Technical Features
Roll specification.
Deep Hardening Layer
The hardening layer runs around 5 mm into the roll body so the roll can be reground repeatedly.
Chrome Plated Surface
Chrome plating around 0.05 mm protects the contact surface and lowers friction against the strip.
Material Options
Rolls are produced in stainless steel or carbon steel depending on the line environment.
Specifications
Barrel length and neck detail follow your cassette drawing.
| Diameter | 30 mm |
|---|---|
| Materials | Stainless steel or carbon steel |
| Hardened Layer | Around 5 mm |
| Surface Treatment | Chrome plating around 0.05 mm |
| Key Properties | Hardness uniformity, wear resistance, spalling resistance |
| Application | High speed high precision straighteners |
Materials
- Carbon steel for standard duty
- Stainless steel for wet or corrosive positions
- Chrome plated working surface
Manufacturing Process
Material Selection
Line environment decides between stainless and carbon steel.
Machining
The roll body and neck are turned to your cassette drawing.
Heat Treatment
The hardened layer is developed to around 5 mm with even hardness.
Grinding And Plating
The barrel is ground, chrome plated and finish ground.
Quality Control
- Hardness uniformity testing
- Hardened layer depth verification
- Dimensional and runout inspection
- Plating thickness measurement
Customization Options
- Barrel length and neck detail to drawing
- Stainless or carbon steel selection
- Plating thickness by strip material
- Matched sets per cassette
Use Guide
- Install as a matched set
- Regrind before the chrome wears through
- Inspect necks after any strip jam
- Store rolls oiled and supported
How It Compares
Material and diameter considerations.
| Carbon steel rolls | Cost effective where the roll position stays dry. |
|---|---|
| Stainless steel rolls | Chosen where moisture or process chemicals would corrode carbon steel. |
| Smaller diameter rolls | 30 mm resists deflection better while still bending thin strip effectively. |
Related Products
Tension Leveler Working Rolls
Hard chrome plated working rolls with HRC 63-65 surface hardness for tension leveling lines.
View Details
Chrome Plated Working Roll for 1450 mm Tension Leveler
Consumable work roll for 1450 mm galvanizing line tension levelers, chrome plated 0.05 mm.
View Details
Leveling Cassette Working Roll Sleeves
Roll sleeves in 30, 45 and 70 mm diameters at HRC 58-62 for cassette style levelling equipment.
View Details
High Precision Straightening Rolls
Precision ground alloy steel straightening rolls for longer runs between roll changes.
View Details
Related Technical Articles
Tension Leveler Spare Parts Planning For AHSS Galvanizing Lines
What to stock, when to replace and why advanced high strength steel changes the roll wear calculation.
Read More
How Hard Chrome Plated Working Rolls Improve Tension Leveler Stability
Wear resistance, friction and rigidity, and the numbers behind each of them on a 16 to 68 mm roll.
Read More
The Role Of Leveling Line Rolls In Finished Strip Qualification Rate
Roll deflection, hardness and bending adjustment are the three levers that decide how much of your output passes inspection.
Read MoreWork Roll 30 mm Diameter Chrome Plated FAQ
Which material should we specify?
Stainless steel where the roll sits in a wet section, carbon steel for dry standard duty. Tell us the position and we advise.
What hardened layer depth do you provide?
Around 5 mm, with chrome plating of about 0.05 mm on the surface.
Why does hardness uniformity matter?
Uneven hardness wears into a band along the barrel, which changes the roll gap and shows on the strip.
Can you make other diameters?
Yes, work rolls are produced across a wide diameter range to your cassette drawing.
Do you supply matched sets?
Yes, and we recommend them so cassette diameters stay within tolerance.
What do you need to quote?
Barrel length and neck detail or a sample roll, cassette model, strip material and quantity.
Order 30 mm Work Rolls
Send your cassette drawing and material preference and we quote a matched set.