ZGTEK offers fully-automatic ring forming and welding machines. the company also supplies simple machines which only form the rings, the welding needs to be done on a separate butt welder.

Automatic snap band making machine for filter bags, or snap band riveting machine, this machine is the fully automatic solution for the production of snap bands.

Based on different mesh sizes, wire thicknesses and aperture sizes, ZGTEK offers different solutions.

> Products > Automatic Ring Making & Welding Machine
Product Picture


  • Model: R-6-300
  • Input voltage: 380V(3-phase) or customized
  • Power frequency: 50/60Hz
  • Designed max. capacity of transformer: 40KVA
  • Instant power during welding: 18KVA(for 4mm wire)
  • Instant power during forming: 3KVA
  • Wire thickness: 2-6mm
  • Max ring diameter: 350mm
  • Min ring diameter: 50mm
  • Ring perimeter tolerance: 0.5mm
  • Cooling: Natural cooling
  • Air flow required: 250L/min
  • Air pressure: 0.6-0.8MPa
  • Throughput: about 1560pcs/hr(for ring diameter 150mm)
  • Weight: 1300KGS


  • High precision: intelligent "S" shape speed curve, the encoder and the servo motor form a closed-loop wire feeding control system, secure a diameter tolerance less than 0.13mm, eventually solve the ring precision issues inherent in the traditional mechanical or hydraulic ring making machines.
  • Advanced and reliable wire feeding: the feeding unit includes a high-end servo motor and a planetary reducer, works on the basis of "dual-drive".
  • Automatic ring making: sizes can be adjusted automatically, worker attendance is not required during machine running.
  • Compatible welding: capable of welding low, medium and high carbon steel, spring steel, galvanized steel; if equipped with a TIG unit, it can also weld stainless steel and titanium rings.
  • Easy operation and maintenance: user-friendly interface on touch screen, easy to adjust, operate and diagnose the machine.