ZGTEK is the unique company in the world specialized in filter cage welding machines and snap band making machines, and one of the few companies in the world capable of supplying high quality automatic ring making and welding machines, we have supplied machines to more than 50 countries in the world.

ZGTEK is located in Jiaxing City, Zhejiang Province, it's a partly state-owned enterprise. The company has rich experiences in resistance welding and automation. Previously the two focused areas of the company were filter cage welding machines and automatic wire ring making and welding machines, they are the traditional businesses of the company. Recently the company has developed automatic snap band making machines, which is the first of its kind in the world, this machine has completely automatized filter bag snap band feeding, cutting, rolling and riveting. As the company is striving for one stop service, we also manufacture other related machines such as wire straightening machines, wire bending machines, spot welders, butt welders, etc.

Today the company's filter cage welding machine is already of the 6th generation, this integrated machine can weld top collar, cage body and bottom cap on the same machine, with all the advanced features such as bad weld detection, auto reweld, ring space compensation, etc. The ring making machines are of the 3rd generation with automatic size change, customizable welding parameters for different ring materials, etc. ZGTEK's ring making machines cover a lot of applications.

After decades of effort, ZGTEK is now the leading supplier of filter cage welding machines of the world by providing a wide range of product portfolio from a stand alone machine to a whole automated line, with best-in-class flexibility, quality and cost-efficiency, resulted from our concentration and expertise in this area. As of end 2017, the company has 40 employees and covers a floor area of about 5000 square meters.

Main Products

1. Filter cage welding lines

  • Cage welding machine for round, oval, star or other shapes (DLN series)
  • Top collar welding machine(DS series)
  • Bottom cap/pan welding machine (DX series)
  • Ring making machine (R series)
  • Butt welding machine (UR series)
  • Venturi tube welding machine (DW series)
  • Wire straightening machine (TZ series)
  • Bending machine (WB series)
  • Other assisting machines for cage welding


  • Good compatibility: DLN Cage welding machines can weld mild carbon steel, galvanized steel and stainless steel directly.
  • High speed: e.g. for cages of 24 wires and 6 meters long, average output is 25pcs per hour.
  • Intelligent: the cage machines can detect bad welds and reweld the points automatically.

2. Ring making machines

  • Round ring making machine (RM series)
  • Oval ring making machine (OR series)
  • Automatic ring making and welding machine (R series)

3. Automatic snap band making machines

  • Automatic snap band making machine (ABM-200-1)
Our Mission

Providing one stop service, helping customers create value.

Core Value
  • Concentration
  • Professionalism
  • Integrity
Customer Base

In China, for filter cage welding machines, more than 95% domestic market share. We also have a long customer/reference list in the world, have sold to more than 50 countries.


The company was previously operated in Science and Creative Building on Chengnan Road, later moved R&D, Sales and Production base to No. 173 Xingyuan Road, which is located in Xinchen Industrial Zone, the accounting office remains on Chengnan Road.

Quality Policy

From day one of the company's operation, we put product quality as top priority, every machine has to be going through severe outgoing quality check before shipment. Today our machines are proven to feature high stability and reliability, the company has become a trustworthy supplier with the most complete product portfolio in filter bag cage welding industry.

We believe in "concentration generates results, professionalism leads to quality, integrity forges our brand". Concentration, professionalism and integrity is the quality we value the most in our employees and in our daily operation, it's rooted in company ethic and has become part of company culture, it is the way we have served customers of today, so will it be the way we serve you in the future.