Copper Components Manufacturer in Chennai
High-conductivity Electrolytic Tough Pitch (ETP) copper stampings, regulator terminals, and electrical contacts. Manufactured in Vadaperumbakkam, Chennai with burr-free progressive die tooling and verified ±0.1mm tolerances.
Material Data
ETP Copper metallurgical & stamping specifications
Guaranteed chemical composition and dimensional compliance backed by certified Mill Test Reports.
| Material Grade | Electrolytic Tough Pitch (ETP) Copper — IS 191 / ASTM B152 C11000 |
| Purity Level | 99.90% Min Copper content (Cu + Ag) |
| Electrical Conductivity | 100% – 101% IACS (International Annealed Copper Standard) |
| Thermal Conductivity | 390 W/(m·K) |
| Thickness Range | 0.2 mm to 3.0 mm strip and sheet |
| Available Tempers | Annealed (Soft), Half-Hard, Hard |
| Surface Plating Options | Bright Tin, Matte Tin, Silver Plating, Nickel Undercoat |
| Production Tolerance | ±0.1 mm across standard stamped terminals |
Tooling Engineering
How our toolmakers solve copper stamping challenges
Copper requires specialized press tool design to prevent galling, excessive edge roll, and dimensional distortion.
1. Tight Punch Clearance
Because pure copper is highly ductile, excessive punch-to-die clearance creates heavy rollover and tear burrs. We hold die clearance to 5%–7% of sheet thickness for clean shear cuts.
2. Galling Prevention
Copper tends to adhere and gall to steel punch surfaces under pressure. Our tool room polishes punch surfaces to mirror finishes and uses controlled vanishing oils during high-speed stamping.
3. Surface Oxidation Control
Copper parts easily tarnish in humid environments. We apply anti-tarnish rinses post-stamping and offer electro-tin or silver plating with strict thickness verification.
Components
Typical copper components stamped at our Chennai plant
Engineered for high current density, low contact resistance, and long thermal cycle life.
Regulator Terminals
Stamped from 0.8mm–1.2mm ETP copper strip with tight terminal tab dimensions for insert-moulding into automotive alternator regulators.
Automotive Tier-IIISwitchgear Contacts
Heavy-gauge copper stamped contact blades for industrial circuit breakers and contactors, silver-plated for low resistance under load.
Electrical SystemsGrounding & Crimp Tabs
High-ductility copper terminals engineered with precise serration patterns for secure automated wire harness crimping.
Wiring HarnessFAQ
Copper stamping frequently asked questions
Why is ETP Copper chosen over other copper grades for stamped terminals?
ETP Copper (IS 191 / C11000) offers 100% IACS electrical conductivity and superior ductility, ensuring low voltage drop across electrical contacts and allowing tight-radius crimping without fracture during automotive wire harness assembly.
How does Space Auto Parts prevent galling and burrs when stamping soft copper?
Because pure copper is soft and ductile, standard tool clearances can cause excessive rollover and slug pulling. We engineer our progressive dies with tight punch-to-die clearances (typically 5% to 7% per side), polished punch flanks, and controlled mist lubrication to prevent copper micro-welding onto cutting tools.
What post-stamping surface treatments do you offer for copper components?
We offer rotary deburring, anti-tarnish surface passivations to prevent oxidation during storage, and verified plating options including electro-tin plating (matte and bright) and silver plating for high-frequency electrical contacts.
What copper components does Space Auto Parts manufacture?
We manufacture automotive alternator regulator terminals, wiring harness connector tabs, electrical switchgear contact plates, battery connection lugs, and grounding clips.
Copper Component Quotation
Submit your copper drawing for engineering review
Send your PDF drawing or CAD model. Our press shop in Chennai provides tooling and component pricing within 1–2 business days.