Rolling Mill Production Facility
We provide efficient and intelligent CNC machine and roll production equipment and are committed to providing the most advanced production solutions for the global steel industry.
The factory has more than 100 advanced casting and processing equipment for rolling mills, including 10 1.5-5 ton medium frequency induction furnaces, 39 2-25 ton heat treatment furnaces, 14 different horizontal centrifugal casting machines, and more than 80 special machine tools for rolling mills. The factory’s rolling mills are all processed by CNC machine.
Steel coil production capacity: 100,000 tons/year.
Special processing equipment to meet various precision and requirements. Full process quality and inspection system from raw materials to finished coils.
Smelting equipment
30t Electric Arc Furnace：Eccentric bottom tapping, Domestic advanced level
50t LF/VD: Movable tank truck type LF-VD, domestic advanced level
5/10/20t Intermediate Frequency Induction Furnace: One circuit with twin ladles, Domestic advanced level
10/15t Electro-Slag Remelting Furnace: Coaxial cable type, Domestic advanced level
Casting and forging equipment
Heating Furnace for Forging ：Regenerative heating furnace Domestic advanced level
45MN Oil Hydraulic Hammer Press ：Controlled by German sinusoidal pump Domestic advanced leve
Centrifugal Casting Machine by Hydraulic Drive ：Critical components are imported from USA and then assembled by Delong; driven by hydraulic motor, ensures steady rotating at high speed. International advanced level
Ester-hardened Molding Sand Mixer ：With a full set of waste sand recovery and recycling treatment equipment. Domestic advanced environmental modeling equipment
Heat treatment equipment
Imported from Belgium, International advanced level
Computer controlled, Domestic leading level
Machining Equipment
CNC Lathe
CNC Grinding Machine
CNC Dual-plex Milling Machine Turning & Boring Machine
CNC Boring & Milling Machine
Machining Precision: 0.003mm
Max weight: 63 tons
| Process | Material | Dimension (mm) | Application |
| Centrifugal Cast | HSS | 500×650～1400×3000 | RW &FW of Hot Strip Mill &ESP；FW3-4 of CSP |
| HiCr Steel | 500×650～1400×3000 | RW of Hot Strip Mill；FW1-2 of CSP | |
| HiCr Iron | 500×650～1400×3860 | FW1-3 of Hot Strip Mill；FW3-4 of CSP；WR of Medium & Wide Plate Mill; RW of Steckel Mill | |
| ICDP | 500×650～1400×3860 | FW4-7 of Hot Strip Mill &ESP; FW5-7 of CSP; WR of Steckel Mill;WR of Medium & Wide Plate Mill | |
| Static Cast | Alloy Ductile Iron | ≤50t/pcs and ≤1600 | WR of Section Mill |
| Alloy Adamite | ≤50t/pcs and ≤1600 | WR & Back Up Roll of Roughing Mill | |
| Alloy cast steel | ≤50t/pcs and ≤1600 | WR of Roughing Mill | |
| Forged | 2%～5% Cr Forged Steel、Semi-HSS | 280～800,Total Length≤5400 | WR, IMR &BUR of Cold Strip Mill |
| Unit Weight≤40t | BUR (roll blank weight: 13t ≤ unit weight ≤ 40t purchased from external manufacturers such as First Heavy, Second Heavy, Beiman Special Steel, etc.) | ||
| 50-70CrNiMo | Unit Weight≤15t | WR &BUR of Hot Strip Mill | |
| 42CrMo | Unit Weight≤15t | Shaft /Arbor |
Main production series: Forged rolls, static cast rolls, centrifugal casting rolls.
Forged rolls:
1. Charge Mixture – Raw material preparation.
2. 30 Tons Electric Arc Furnace Melting – Primary melting.
Eccentric bottom tapping
Domestic advanced level
3. 45/70 Tons Ladle Refining – Purification and alloying.
4. Ingot Casting – Forming into ingots.
5. 10/15 Tons Electric Slag Remelting – Secondary refining for purity.
6. Forging – Shaping under pressure.
7. Heat Treatment After Forging – Stress relief.
8. Rough Machining – Initial shaping.
9. Preparatory Heat Treatment – Preparation for hardening.
10. Semi-Finishing Machining – Precision shaping.
11. Dual Frequency Hardening – Surface hardening.
12. Deep Freezing Treatment – Microstructure stabilization.
13. Temper – Stress relief after hardening.
14. Finish Machining – Final dimensional accuracy.
15. Packing – Rust prevention and protection.
16. Delivery – Shipping to the customer
Static cast rolls: 1. Charge Mixture 2. Intermediate Frequency Furnace Melting 3. Horizontal Centrifugal Casting 4. Preparatory Heat Treatment 5. Rough Machining 6. D.H.Treatment 7. Finishing Machining 8. Packing—-Delivery
Centrifugal casting rolls: 1. Charge Mixture 2. Electric Arc Furnace 3. Ladle Refining 4. Static Casting 5. Preparatory Heat Treatment 6. Rough Machining 7. D.H.Treatment 8. Finishing Machining 9. Packing—-Delivery
We have built 4 casting production lines, 4 heat treatment lines, 4 roll processing lines, and 4 roll ring processing lines.
Advanced testing equipment
- Spectrometer (for analyzing material composition)
- Hardness tester (Rockwell/Leeb)
- Ultrasonic flaw detector
- Metallographic microscope
