CAST SLEEVES AND
FORGED ROLL SHAFTS
Cast sleeves are critical wear components in long product rolling processes, directly involved in metal deformation. TSR sleeves are manufactured from high-performance alloy materials with advanced heat treatment processes, offering excellent wear resistance, thermal crack resistance, and dimensional stability. They ensure stable rolling performance under high load and high-temperature conditions, improving rolling efficiency and product surface quality.
TSR forged shafts are produced from premium alloy steel through high forging ratios and precision heat treatment, resulting in dense and uniform microstructure with excellent strength, toughness, and fatigue resistance, ensuring long-term stable and reliable operation.
Application
- Section mills
- Vertical rebar mills
- Straighteners
Materal Grades of sleeves
|
CLASSFICATION |
CHEMISTRY |
Hardness (HSC) |
Tensile (N/mm2) |
|||||
|
C |
Si |
Mn |
Cr |
Ni |
Mo |
|||
|
SGP |
2.90-3.60 |
1.00-2.20 |
0.40-1.00 |
0.20-1.20 |
1.50-3.00 |
0.20-0.80 |
55-65 |
≥450 |
|
SGA |
2.90-3.60 |
1.00-2.20 |
0.20-0.80 |
0.20-1.50 |
3.0-4.50 |
0.50-1.00 |
60-70 |
≥450 |
|
Adamite |
1.50-2.10 |
0.30-0.80 |
0.60-1.30 |
0.80-3.50 |
0.50-2.50 |
0.20-0.80 |
50-60 |
≥600 |
|
GS |
1.60-2.20 |
1.20-2.00 |
0.50-1.50 |
1.00-3.00 |
1.00-3.00 |
0.40-0.80 |
55-65 |
≥700 |
material grade of forged shaft
|
CLASSFICATION |
CHEMISTRY |
Tensile (N/mm2) |
||||
|
C |
Si |
Mn |
Cr |
Mo |
||
|
42CrMo |
0.38-0.45 |
0.17-0.37 |
0.50-0.80 |
0.90-1.20 |
0.15-0.30 |
≥800 |
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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
SLEEVES AND
roll SHAFTS
We produce various grades for sleeves and roll shafts, such as SGP, SGA, Adamite and etc.
Application
- Section mills
- Vertical rebar mills
- Straighteners
- Sleeves
| CLASSFICATION | CHEMISTRY |
Hardness (HSC) |
Tensile (N/mm2) |
|||||
| C | Si | Mn | Cr | Ni | Mo | |||
| SGP | 2.90-3.60 | 1.00-2.20 | 0.40-1.00 | 0.20-1.20 | 1.50-3.00 | 0.20-0.80 | 55-65 | ≥450 |
| SGA | 2.90-3.60 | 1.00-2.20 | 0.20-0.80 | 0.20-1.50 | 3.0-4.50 | 0.50-1.00 | 60-70 | ≥450 |
| Adamite | 1.50-2.10 | 0.30-0.80 | 0.60-1.30 | 0.80-3.50 | 0.50-2.50 | 0.20-0.80 | 50-60 | ≥600 |
| GS | 1.60-2.20 | 1.20-2.00 | 0.50-1.50 | 1.00-3.00 | 1.00-3.00 | 0.40-0.80 | 55-65 | ≥700 |
- Shafts
| CLASSFICATION | CHEMISTRY |
Tensile (N/mm2) |
||||
| C | Si | Mn | Cr | Mo | ||
| 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | 0.15-0.30 | ≥800 |
