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It means steel wires (material) is being formed by pressure only under ordinal temperature. “Cold forming process” provides more precise part without deforming by heat as “hot forged process”.
“Header” means “hitting head” accordingly, “header” and “former” are machines which can produce screws and bolts by pressing end of wire. Former has process more than three stages inside itself and on the other hand header has up to two stages.
Almost no material loss, as compared with milling from bar. In case of mass-products of lower cost although mold charge is required separately. Also, processing inside mold (die) keeps stable dimensions and strength without cutting fiber flow.
It depends negotiation with a customer however, generally speaking, quantitiy over 10,000pcs will be required but few thousands will be acceptable, depending on material and unit weight.
Our facility handle wire from φ3m/m to φ34m/m.
φ34m/m shaft × 500m/m length × φ55m/m is maximum dimension but it depend on specification of applicable header and former.
We can provide secondary process such as rolling, tapping, drilling as cold forming. Also we welcome inquiries of simple assembling work.
We can make the proper drawing based on the sample and propose applicable material to you.