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I. General Description: 
This machine is used to produce the inner and outer mesh for the heavy duty air filters. The metal strip will be expanded and flattened before spirally lock-seamed processing. It combines the traditional expanded metal making machine, flattening machine and the spiral tube making machine into one unit.

II. Main specifications:
1.Diameter range: 90-350mm or customized
2.Production efficiency: 8-12m/min;
3.Tube length: cut as desired
4.Metal strip material: anti-fingerprint galvanized steel
5.Steel strip thickness: 0.4mm
6.Steel strip width: 68mm
7.Expanded metal width: 120mm
8.Motor power: 4.5Kw
9.Power supply: 380V/50Hz
10.Air pressure: 0.6Mpa
11.Machine weight: 800kg
12.Machine size: 1600mm*800mm*1240mm (L*W*H)

III. Features:
1.This production line is easy, cost effective and practical;
2.Every diameter needs one set of moulds;
3.The length can be cut according to the specific requirements;