ring former

Ring Former

Ring Expanding Machine / Manual machine for enlarging wedding rings with precision molds

The Ring Expanding Machine is a compact and durable tool designed to increase the size of wedding rings with precision and ease. Using hardened steel molds in various shapes and sizes, it enables smooth expansion of rings while preserving their shape and surface. Perfect for goldsmiths and small jewelry workshops, this manual machine delivers consistent results without the need for electricity.

Ideal for jewelers looking to adjust ring sizes with control and accuracy, the Ring Expanding Machine operates fully manually and delivers smooth, repeatable results for daily use. This machine is an essential tool in the modern goldsmith’s workshop — serving a role as fundamental as a jewelry cutting machine in ring personalization and sizing. After reshaping your ring, you can finish the process by cleaning it with a jewelry cleaning machine to achieve a flawless look. With a wide variety of mold shapes — including round, flat, convex, and concave — it supports numerous ring styles and profiles with ease.

Manual Ring Sizing

Adjust ring diameters smoothly and precisely using the manual lever system.

Hardened Steel Mold

Supports a wide variety of mold shapes and sizes such as round, flat, convex, and concave — suitable for different ring designs.

Durable Steel Mold

Built from hardened stainless steel for long-term durability and consistent ring expansion performance.

Compact Design

Takes up minimal space while offering maximum control. Ideal for both small workshops and larger production environments.

The Ring Expanding Machine is a manually operated tool designed for resizing rings with maximum control and minimal effort. Ideal for small workshops and goldsmiths, it delivers reliable results without the need for electricity or compressed air. The system includes a variety of interchangeable ring molds — round, flat, hexagon, convex, concave, and more — to support different ring profiles. Its hardened steel structure ensures long-lasting performance in high-use environments.

  • Fully manual operation — no electricity or air pressure required
  • Expands ring diameter smoothly and evenly without surface damage
  • Durable head made of stainless steel for consistent pressure
  • Additional molds available in various types (round, flat, convex, concave)
  • Durable head made of stainless steel for consistent pressure
  • Compact and sturdy design for daily use in workshops
  • Can be used before or after engraving, polishing, or jewelry cleaning machine operations
  • Essential for resizing after production with jewelry name cutting machines
  • Suitable for gold, silver, brass, and other soft metals
  • Works across all gold karat levels (from 8K to 24K)
Net Weight 10 KG
Size 30 x 30 x 40 cms
Mold Weight 222 GR
Material Stainless Steel Mold