Copper Precision Cold Drawing Machines – Engineered for Superior Surface Integrity & Dimensional Consistency
- Jul 23
- 2 min read
Advanced hydraulic drawbenches with DLC‑coated dies, closed‑loop force control, and automated handling – delivering ±0.015 mm accuracy, Ra 0.2 µm finish, and high‑volume output for electrical, HVAC, automotive, and medical applications.
Why Copper Requires Precision Cold Drawing
Copper's exceptional electrical and thermal conductivity make it indispensable in power transmission, heat exchangers, and fluid systems. However, its softness, high ductility, and tendency to gall present unique processing challenges:
Surface galling – Copper adheres to tooling without proper die coatings.
Wall thickness variation – Inconsistent drawing leads to weak spots.
Work hardening – Excessive reduction makes copper brittle.
Dimensional instability – Spring‑back affects final tolerances.
Precision cold drawing addresses these challenges through controlled reduction, smooth hydraulic force, and advanced die technology.
Why Hydraulic Precision for Copper?
Factor | Mechanical (Chain) | Hydraulic (FangRong) |
Force smoothness | Pulsating – risk of chatter marks | Continuous, vibration‑free |
Surface finish | Ra ≥0.6 µm | Ra ≤0.2 µm – mirror bright |
Die life | 1,500–2,000 draws | 3,500–5,000 draws |
Energy consumption | Fixed pump – higher cost | Variable pump – 25% less |
Key Technical Specifications
Parameter | Range |
Tube OD | 2 – 120 mm |
Wall thickness | 0.2 – 10 mm |
Bar diameter | 2 – 80 mm |
Drawing force | 5 – 100 tons |
Drawing speed | 0 – 20 m/min |
Accuracy | ±0.015 mm |
Surface finish | Ra ≤0.2 µm |
Materials & Applications
Grade | Application |
C11000 (ETP) | Busbars, transformer windings |
C12200 (DHP) | HVAC coils, plumbing, refrigerant lines |
C10200 (OF) | Medical gas systems, high‑purity |
Copper‑nickel | Marine cooling, hydraulic lines |
Core Technologies
DLC‑coated / polished carbide dies – Eliminates galling, ensures bright finish.
Closed‑loop force control – Real‑time adjustment for ±0.015 mm accuracy.
Precision‑guided mandrel – Supports internal wall – prevents collapse.
Hydraulic smooth drive – No vibration – no chatter marks.
Quick‑change tooling – Size change in under 5 minutes.
In‑process laser measurement – Real‑time OD/wall verification.
Automation Options
Magazine infeed – up to 1 tonne capacity
Auto‑transfer to drawbench
In‑line straightener & cut‑off
Automatic stacking & bundling
Data logging – full traceability
Why FangRong for Copper?
26 years non‑ferrous drawing expertise.
Surface protection guarantee – no galling, no scratches.
Proven multi‑line designs – for high‑volume production.
Global service – installation, training, remote diagnostics.
Contact FangRong with your copper specifications – we will configure a drawing solution that meets your exact needs.
Know More About Us FangRong Metallurgical Equipment Manufacturer in China since 1998. Professional in Metal Straightening machine, Cold Drawing machine, Push Pointer Drawing Machine, Automatic Three Lines Drawing Machine, Thread rolling machine, Tube-end shrinking machine, Pointing Machine, Core pipe machine, Polishing Machine etc.
Follow US:
Email: frsale@dgfangrong.com frmachine001@dgfangrong.com
Whatsapp/Skype/Wechat:+8618928290716 +8613537360900
Web: https://www.fangrong-machines.com https://www.dgfangrong.com
Keywords: Copper cold drawing machine, precision copper tube drawbench, C12200 tube drawing, mirror finish copper, hydraulic copper drawbench, copper bar drawing, non‑ferrous cold drawing.
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