Ring making machine is used to make steel wire ring, ring diameter: 100-300mm. Steel wire thickness: 2.5-5mm.
Wire straightening machine is used to straighten steel wire into bar and cut it at certain length. Steel wire thickness: 2.5-5mm. Steel wire material: SS, GI, etc.
Top welder is used to weld the top cap (collar) to the filter bag cage body. www.zgtek.com has more details.