CAST ROLLS WITH
GROOVES
TSR have developed a moulding technique using a solid chill for the outer contour of the roll barrel and shaped cast iron chills bolted to the outer chill to produce the grooves promoting rapid solidification in the working area of the roll. This minimizes the appearance of solidification defects and produces a fine grained wear resistant structure which results in enhanced mill performance.
Application
- Deeply grooved rolls in Heavy Section mills
why choose cast rolls with grooves for heavy section mills?
When rolls are deeply grooved as in Heavy Section mill rolls, it is necessary to produce a roll with a similar hardness at the top of the collar and at the bottom of the groove.
A significant hardness fall off along the groove will lead to an uneven wearing behaviour and a rapid deterioration of the dimensional stability and tolerances of the rolled section. This will require frequent roll changes, redressings and a significant increase of the operational cost.
In the case of steel rolls, since the hardness and the microstructure are adjusted by the heat treatment, it is relatively easy to premachine the grooves before the heat treatment in order to have the same hardness at the top of the collars than at the bottom of the grooves.
In the case of cast iron rolls, where the microstructure and the hardness are basically obtained in as-cast condition, it is a distinct advantage to shape the mould of the roll with a contour as close as possible to the shape of the finished roll.
At TSR we have developed a moulding technique using a solid chill for the outer contour of the roll barrel and shaped cast iron chills bolted to the outer chill to produce the grooves promoting rapid solidification in the working area of the roll. This minimizes the appearance of solidification defects and produces a fine grained wear resistant structure which results in enhanced mill performance.
machining of cast rolls
with grooves
metal mould for the cast rolls with grooves
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Packing Details
Seaworthy crates, wooden boxes or steel pallets
Production time
4-6months
Shipping
Sea freight, Land freight and Air freight
Warranty Time
Whole lifetime warrantee
Production Progress
A specialized production control system is applied throughout roll manufacturing, covering material preparation, casting/forging, heat treatment, machining, and inspection. Strict control of key processes ensures stable roll performance, consistent quality, and reliable delivery.
TSR is a professional supplier of mill rolls and related technical services. Backed by an expert team of PhDs specializing in materials science and metallurgy, TSR is committed to becoming a world-class provider of roll technology and services.
With over 20 years of dedicated experience, TSR has been supplying high-quality mill rolls and reliable technical support to steel producers worldwide. Our products are successfully applied on more than 100 rolling mill lines across 30+ countries and regions, including France, Spain, South Korea, Vietnam, India, Brazil, and Mexico.
PRODUCTION CAPACITY
At TSR, we believe that continuous improvement leads to perfection. We consistently upgrade our advanced CNC equipment to ensure excellence throughout the production process.
MELTING
EBT Arc furnace: 55T
LF Refining furnace: 55T
VD+VOD: 55T
IM frequency furnace (8 sets): 20T
CASTING
Horizontal Spin Casters
Ø 1,600 mm x 4,500 mm B.L.
Ø 1,400 mm x 3,000 mm B.L.
Ø 800 mm x 2,600 mm B.L.
HEAT TREATMENT
Electrical furnaces
18 sets – bogie type
7 sets – low-temperature
11 sets – high temperature
Differential Heat Treatment
Furnaceφ1600 mm x 2800 mm B.L.
Spray quenching machine
Max φ1800mm
MACHING
CNC Lathe: 32T
CNC Grinding machine50T
Turing and Boring machine: 63T
Boring machine
QUALITY CONTROL
The high-performance demands of today’s mills require reliable rolls that can remain in the production cycle longer than ever, while ensuring high-quality rolled products. TSR has built a consistent quality control system throughout the entire manufacturing process. Our aim is to supply customers with reliable rolls that deliver better performance, contributing to customer benefit, cost reduction and satisfaction.
Dimentional
Inspection
Microstructure
Inspection
Ultrasonic
Inspection
Lismar
Environmental friendly package
Low-carbon operation of each equipment, recycling of every piece of metal, and environmental optimization of each process — these are TSR’s solemn commitments to the Earth. Even the smallest details of our packaging reflect TSR’s responsible attitude toward environmental protection.
- Seaworthy steel pallets
- 100% recyclable materials
- Unpainted steel pallets
- Optimized packaging design to minimize material consumption
Service and Support
Trust and Worth
Our Clients
