When you need high-quality, smooth-finished metal components with exact specifications, metal spinning delivers. But not all spun parts are created equal—especially when you're working with silver-copper alloys and need a consistent Ra 3.2 surface finish.

What is Metal Spinning?

Metal spinning is a cold-forming process where a flat metal disc (blank) is rotated at high speed and pressed against a form (mandrel) to create symmetrical, hollow shapes. It’s ideal for:

✔ Rapid prototyping (No expensive molds needed)
✔ Low to medium production runs (1 to 10,000+ parts)
✔ Complex curves & seamless designs (No welds or joints)

Why Choose Silver-Copper Alloys?

• Superior Conductivity – Perfect for electrical and thermal applications
• Anti-Corrosion – Resists tarnishing better than pure copper
• Aesthetic Appeal – Polished finish for decorative pieces
• Strength & Formability – Easier to spin than stainless steel

Achieving Ra 3.2 Surface Roughness: Why It Matters

Ra 3.2 (≈125 µin) is a semi-smooth finish—not mirror-polished, but free of visible tool marks. It’s the sweet spot for:

• Functional Parts – Reduces friction in moving components
• Electrical Contacts – Ensures better conductivity
• Decorative Items – Looks refined without costly polishing

How Do We Achieve It?

• Precision Tooling – Sharp, well-maintained spinning rollers
• Controlled Speed & Pressure – Prevents surface scratches
• Post-Spinning Finishing – Light abrasive treatment if needed

Industries That Benefit from Silver-Copper Spun Parts

FAQ

1. Are you a manufacturer or a trading company?