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Product Details:
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| Surface Treatment: | Heat Treatment,Removal Of Oxide Scale Or Customized | Size: | Customized |
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| Material: | 42CrMo4, 20CrMnTi Or Customized | Weight: | 100 KG-7 TON |
| Type: | Free Forging | Application: | Continuous Casting And Steel Mill Equipment |
| Packing: | Pallet Or Customized | Shape: | Customizable |
| Durability: | Long Time | ||
| Highlight: | free forged 20crmnti,20crmnti roller shaft,continuous casting free forged |
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Free Forged Roller Shaft for Continuous Casting and Steel Mill Equipment. Our free forged roller shafts are purpose-built to endure the extreme mechanical and thermal stresses found in continuous casting lines, hot rolling mills, and other steel processing equipment. Manufactured using high-strength alloy and carbon steels, each shaft is precision-forged to ensure superior fatigue resistance, dimensional accuracy, and long operational life under heavy loads and cyclic conditions.
Key Features:
Material Options: 42CrMo, 45#, and other custom alloy steels offering excellent toughness, hardenability, and thermal fatigue resistance.
Forging Method: Open-die forging (free forging) for dense, refined grain structure and defect-free integrity, especially critical in high-load roller applications.
Size Capabilities: Large-diameter, extra-long shafts suitable for various roller configurations—work rolls, support rolls, intermediate rolls, and pinch rolls.
Applications:
Roller shafts for continuous casting machines
Support and drive rolls in hot and cold rolling mills
Roller components in reheating furnaces and billet handling systems
| Item | Details |
|---|---|
| Product Name | Free Forged Roller Shaft for Continuous Casting and Steel Mill Equipment |
| Material Grades | - Alloy steels: 42CrMo - Carbon steels: 45# - Excellent tensile strength, fatigue resistance, and thermal stability for high-load and high-temperature operations in rolling mills |
| Forging Equipment | - Hydraulic hammers: 5T / 8T / 12T - 3600T open-die forging press for long, large-diameter roller shaft forgings - Capable of forming stepped shafts with journals, necks, and custom drive end profiles |
| Manufacturing Process | Hot Forging → Heat Treatment (Quenching + Tempering / Normalizing) → Ultrasonic Testing → Rough / Semi-Finish Machining → Final Dimensional & Surface Inspection |
| Forging Ratio | ≥ 3.0 — Ensures directional grain flow along the shaft axis for improved impact toughness, torsional strength, and long-term reliability under cyclic rolling loads |
| Applications | - Roller shafts in continuous casting machines and billet handling systems - Work rolls, backup rolls, and intermediate rolls in hot and cold strip rolling mills - Roller components for steel processing, reheat furnaces, and coil transport equipment |
| Heat Treatment Options | - Quenched + Tempered for enhanced strength, hardness, and wear resistance in dynamic rolling environments - Normalizing for uniform microstructure and improved machinability - Optional stress-relief annealing to reduce residual stress prior to finish machining |
| Testing & Inspection | - Chemical: Alloy verification by spectrometer - Mechanical: Tensile strength, yield strength, hardness, and Charpy impact tests (longitudinal & transverse) - Ultrasonic Testing (UT): 100% internal flaw detection along the shaft length - Dimensional: Concentricity, straightness, diameter tolerance, and surface finish control |
| Value-Added Services | - Pre-machining of journals, keyways, shoulders, and coupling interfaces - Complete material traceability: heat number, batch number, mechanical and NDT reports (MTC) |
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Contact Person: Mrs. Mia Liu
Tel: 0086-18706127868