Precision Machining for Continuous Steel Processing Equipment
Endurance Under Fire — CNC Components for High-Temperature, High-Load Lines
Steel doesn’t sleep. In continuous casting and forming lines, core mechanical components are exposed to extreme temperatures, heavy dynamic loads, and round-the-clock operation. These parts must deliver thermal stability, dimensional consistency, and fatigue resistance — day after day, cycle after cycle.
With over two decades of CNC manufacturing experience, our China-based facility produces precision-machined parts for high-duty steel and wire forming lines, including casting guides, loop control rollers, thermal buffer housings, and shaft-mounted tension systems.
✔ Key Machining Challenges in Steel Line Components
The operating environment of these machines demands:
- Thermal stability: Components near casting zones or hot rolling sections must retain flatness and tolerance under 800°C+ exposure.
- Heavy-load endurance: Shafts and housings must bear high radial/axial loads without creep or fatigue over thousands of hours.
- Abrasion resistance: Surfaces in contact with billets, bars, or wire must resist scaling, deformation, and galling.
- Dimensional precision at scale: Even with large dimensions (>1000 mm), critical fits (H7/g6) must be held consistently.
- Reliability in automation: Roller assemblies and pivot units must operate maintenance-free under servo or hydraulic control.
✔ Typical Components We Machine
| Component | Used In | Processing Features |
|---|---|---|
| Segment Arms & Brackets | Continuous casting lines | CNC-milled with high flatness, HT tolerance |
| Tension Shafts & Take-up Rollers | Wire draw & coil feeders | Ground OD, dynamic balance, oil-sealed assembly |
| Looping Rollers / Pulleys | Rebar & rod mills | Hardened V-grooves, concentricity < 0.01mm |
| Guide Bushings / Slide Bearings | Hot transfer lines | Bronze/steel composite, CNC turned + lapped |
| Frame Housings | Uncoilers / rewinders | Milled & bored to 0.01mm flatness and alignment |
| Cooling System Supports | Finishing sections | Machined stainless steel or cast aluminum parts |
✔ Material Choices & Surface Engineering
We work with materials tailored to high-heat, high-wear, and dynamic applications:
| Material | Common Use | Surface/Heat Treatment |
|---|---|---|
| Cast Steel / 35CrMo / 42CrMo | Arms, shafts, carriers | Tempered + normalized + blackened |
| GCr15 (bearing steel) | High-speed pulleys & rollers | Through hardened + OD ground |
| ZCuSn10P1 / Bronze | Wear sleeves, bushings | Self-lubricating + groove-cutting |
| 304 / 316L Stainless Steel | Cooling systems, acidic zones | Corrosion-resistant + pickled |
| Tool Steel (Cr12, SKD61) | Shear slide & hot contact tools | Vacuum hardened + lapped finish |
| Gray Cast Iron (HT250, FC300) | Frames, roller blocks | Vibration-damping, machined flatness control |
Additional surface enhancements: nitriding, chrome plating, PTFE dry film, or HVOF spray for heat/wear control.
✔ Our Process Capabilities
- Large-part horizontal boring (workpieces up to 2.5m)
- 4-axis CNC turning for shafts and rollers (max Ø600mm x 2000mm)
- Surface grinding, cylindrical grinding, and dynamic balancing
- Groove machining for wire guidance, oil channels, or V-pulleys
- Custom fixture development for repeatable bore/hole machining
- Heat treatment + stress relieving integrated with machining plans
Inspection Tools:
- ZEISS CMMs for large assemblies
- Runout and vibration testing for rotating parts
- Surface roughness meters (Ra 0.2μm~3.2μm)
- Metallographic testing and ultrasonic flaw detection on request
✔ Global Reference Deliveries
- ✅ Looping rollers with precision V-grooves for a Vietnamese wire mill retrofit
- ✅ Segment arms and support brackets for a Turkish billet caster line
- ✅ Recoil shaft assemblies for a German steel strip rewinder
- ✅ Slide bushings and wear sleeves for South American rod line overhaul
✔ Why Steel Plant OEMs Choose Our CNC Machining
- 🔩 Heavy-duty experience — large, heat-exposed, load-bearing parts
- 🔧 Full integration: machining + stress relief + coating + final assembly
- 📊 ISO-compliant process control with dimensional & functional reporting
- 🌍 100% export-ready — EU & Asia clients in long product and wire sectors
- 🕒 Prototyping & spare parts delivery in 10–15 working days
🔥 Engineered for Heat. Built for Duty.
From billet guides to wire loop control rollers, our CNC-machined components keep your steel and wire lines moving — strong, stable, and precisely aligned.
📩 Upload your drawings today. We’ll provide a machining plan in 24 hours.