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 > Venturi Welder
Product Picture


  • Model: DW-80
  • Input voltage: 380V(2-phase) or specified by customer
  • Power freq.: 50Hz
  • Power capacity: 80KVA
  • Working load: 35KVA
  • Cooling: Water cooling
  • Water flow: 3L/min
  • Air flow: 80L/min
  • Air pressure: 0.6-0.8MPa
  • Insulation grade: F


  • KD-D08B controller
  • Horizontal welding, applicable for welding bag cages of random lengths, supporting stand included