The Metal Bead Rounding Machine is specifically designed for jewelry manufacturers to shape and polish metal beads into perfectly round spheres. Ideal for processing precious metals such as gold, silver, copper, and their alloys, this machine ensures uniform size, smooth surface finish, and high production efficiency.

Grinding and Polishing System for Spherical Metal Beads

Working Principle
The Metal Bead Rounding Machine operates using a set of rotating grinding plates (discs) — one fixed at the bottom and one moving on top. Metal bead blanks are loaded between the two grinding discs. As the upper disc rotates and applies controlled pressure, the beads roll and rotate under the frictional force between the two surfaces.
Through continuous multi-directional rolling and abrasion, the irregular beads gradually take on a spherical shape. The entire rounding process ensures high surface smoothness, uniform diameter, and consistent finish.
For advanced models, polishing media or slurry can be added to the grinding process to simultaneously grind and polish the beads during rounding.

Key Features:
• 🔹 High Precision Grinding: Forms rough-cut or cast beads into accurate round spheres with tight tolerances.
• 🔹 Applicable Materials: Suitable for gold, silver, copper, brass, and other jewelry metals.
• 🔹 Adjustable Parameters: Supports variable speed, time, and pressure settings for different bead sizes and materials.
• 🔹 Compact & Durable: Made of robust stainless steel or alloy frame for long-term use in production environments.
• 🔹 Optional Polishing Function: Integrated with polishing media to simultaneously round and polish beads.

Technical Specifications
• Bead size range: 3mm – 14mm (customizable)
• Materials: Gold, silver, copper, brass, etc.
• Power: 550W
• Operation mode: Semi-automatic
• Grinding disc material: Hardened alloy / Stone composite

Typical Applications:
• Jewelry bead production
• Buddha and prayer beads
• Decorative metal balls
• Precision bead forming before drilling or stringing

This Metal Bead Rounding Machine significantly improves bead quality and consistency, while reducing manual labor and production time. It is an indispensable solution for any professional jewelry workshop or mass production facility.