Steel Contraction Machine pulls and draws alloy steel bottle flans with high strength from a wall yhickness 4.5mm down to 2.5-3mm in cold conditions. This machine applies a hydraulic drive and operates stably. The drawing is done in one cycle without any deformation, wrinkling or cracking. After drawing, the material is smooth and shining on both inside and outside surfaces.

This machine is exclusively designed and manufactured for the high-strength and thin-walled CO2 fire extinguisher (material is 35CrMo alloy steel) of a new generation in both domestic and overseas markets.

It has been used for many exclusive export-oriented enterprises. The product features high qualification rate, high automation and high speed. It only takes 30 seconds to pull and draw each bottle flans on average. The product is an essential device for export-oriented steel bottle manufacturers.