Harbin Rainbow Technology CO.,Ltd.
Harbin Rainbow Technology CO.,Ltd.
Multi-Station Cold Former

Automatic bolt making machine is a specialized machine with the advantages of high precision, high productivity and high automation.


Rainbow can supply multi-station bolt forging machines, including 3 station, 4 station, 5 station, and 6 station machines. Cold upsetting technique and cold forging machines are used as an important means for producing different kinds of bolts, nuts and other metal parts in the field of fastener industry. 


Because of the advantage of the cold upsetting equipment itself and the superiority of cold upsetting technique, the cold former are also widely used in different national economic territories for producing fasteners and abnormal non-standard parts such as aviation, steamer, machinery, rail traffic, vehicle, motorcycle, bicycle, architecture, electric appliance, electronic and communication products, etc.


The multi-station cold former can produce various precise parts for the aerospace area.


Rainbow Provides High-Quality Fastener Equipment Products & Solutions for You!
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