What equipment do stainless steel jewelry factories have?

Main Equipment in Chinese Stainless Steel Jewelry Factories

 

Below is a categorized list of standard and specialized equipment, covering the full production workflow from raw material processing to finished product packaging.

1. Raw Material & Cutting Equipment

Used for shaping stainless steel sheets, rods, wires and blanks.
  • Wire Drawing Machine: Processes raw steel bars into thin jewelry-grade steel wires for chains, bracelets and earrings.
  • Sheet Slitting & Shearing Machine: Cuts stainless steel coils/sheets into standard blanks.
  • Laser Cutting Machine: High-precision cutting for complex outlines, hollow patterns and custom shapes.
  • Hydraulic Punching/Stamping Press: Mass-produces basic parts like ring bases, pendants and earring bodies; widely used for high-volume orders.
  • CNC Lathe & Milling Machine: Makes precision components, curved parts and customized jewelry with strict dimensional requirements.

2. Forming & Bending Equipment

For bending, shaping and assembling semi-finished parts.
  • Bending Machine: Shapes steel strips into bracelets, bangles and circular rings.
  • Chain Making Machine: Automatic production of various chains (cable chain, box chain, snake chain, etc.), including linking and closing.
  • Die-casting Machine: Produces intricate 3D stainless steel jewelry pieces and complex accessories.
  • Roll Forming Machine: Evens and shapes thin steel parts for uniform appearance.

3. Polishing & Deburring Equipment

Removes rough edges, scratches and creates different surface textures.
  • Automatic Polishing Machine: Mass polishing for flat and regular pieces; improves surface smoothness.
  • Vibratory Polishing Tumbler: Batch deburring, fine polishing and rounding edges for small parts.
  • Handheld Polishing Tools: For detailed polishing on complex, irregular designs.
  • Buffing Machine: Creates mirror finish, matte finish or brushed texture as required.
  • Sandblasting Machine: Makes frosted, textured and anti-glare surface effects.

4. Engraving & Pattern Processing Equipment

For logos, texts, patterns and decorative carvings.
  • Fiber Laser Engraving Machine: The most common device for engraving brand logos, names, dates and patterns on stainless steel.
  • Electric Carving Machine: Manual fine carving for artistic and personalized details.

5. Surface Coating & Plating Equipment

Core equipment for color finishing, anti-rust and anti-fade treatment.
  • PVD Vacuum Coating Machine: Applies gold, rose gold, black, gunmetal and other durable color layers; mainstream for mid-to-high-end jewelry.
  • IP Plating Machine: Delivers extra scratch-resistant and high-brightness coating for premium products.
  • Cyanide-free Electroplating Line: Eco-friendly electroplating system, compliant with EU REACH, RoHS and other international standards.
  • Ultrasonic Cleaning Machine: Removes oil, dust and impurities before and after plating to ensure coating adhesion.

6. Welding & Assembly Equipment

For joining parts and final assembly.
  • Laser Welding Machine: Precise welding for tiny joints of chains, pendants and accessories; no obvious weld marks.
  • Spot Welding Machine: Fast assembly for simple connecting parts.
  • Riveting Machine: Fixes decorative stones, clasps and small accessories.
  • Automatic Assembly Line: Assembles finished jewelry in batches for large orders.

7. Quality Inspection & Testing Equipment

Guarantees product compliance and quality.
  • Hardness Tester: Checks material hardness of stainless steel.
  • Salt Spray Test Chamber: Tests corrosion and rust resistance.
  • Nickel Release Detector: Verifies nickel content for hypoallergenic standards.
  • Dimension Measuring Tools: Calipers, micrometers and projectors to check product size accuracy.
  • Visual Inspection Platform: Manual recheck for appearance defects.

8. Packaging Auxiliary Equipment

For final packing before delivery.
  • Automatic Bag Sealing Machine
  • Labeling Machine
  • Boxing & Wrapping Equipment

Supplementary Note

  • Small workshops mainly use semi-automatic and handheld devices, with limited plating capacity.
  • Large-scale export factories are fully equipped with automated production lines, complete testing instruments and full-set PVD/electroplating systems to meet international order requirements.

 

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