Automatic Cold Forging Bolt Making Machine

A cold heading machine (automatic cold forging bolt making machine) shapes metal wire (carbon steel, stainless steel, aluminum, copper) into fastener components by feeding, shearing and pressing the blank into dies using a crankshaft/slider mechanism. It automates production of heads, stems and related parts without melting the metal.

It can produce a wide variety of fasteners and related parts including truss, countersunk, pan, flat, hexagon, socket, button and cap heads; set screws, wood/chipboard/self-tapping screws, bolts, nuts (square, weld, cap, blind, hex socket lockup), washers, expansion anchors, motorcycle/bicycle pins and rollers, oil plug screws and many custom shapes with proper tooling.

Typical materials are carbon steel, stainless steel, aluminum and copper wire. Material grade, wire hardness and lubrication affect formability — consult the manufacturer for recommended alloys and pre-treatment for specific parts.

Output depends on model, blank size and part complexity. Typical rates range from about 25–200 pieces per minute across the model range (small-diameter models reach up to 150–200 pcs/min; large models run slower, e.g., 25–80 pcs/min).

Select a model based on maximum blank diameter, maximum blank length, cutoff length and required stroke. The product data lists many models (RSH3–RSH16) with max blank diameters from 3 mm up to 16 mm and corresponding blank/cutoff lengths and strokes. Provide your target blank diameter, length and part drawing to the supplier for exact model recommendation.

Main motor power ranges approximately from 1.1 kW (1.5 HP) up to ~22 kW (25 HP) depending on model. Footprint and height vary by model (typical machine sizes are roughly 1.4–6.5 m long, 0.75–2.25 m wide, 0.9–2.1 m high). Weights range from ~650 kg up to ~21,000 kg for the largest models. Confirm site power and floor load capacity before installation.

Cold heading machines include guarding around moving parts, emergency stop controls, interlocks on access panels and safe feed mechanisms. Operators should follow lockout/tagout procedures, wear PPE and receive training. Specific safety options and guarding levels can be specified with the supplier.

Tooling life depends on material, production volume and maintenance. With proper die material, heat treatment and lubrication, dies can last many thousands to millions of cycles. The manufacturer supplies replacement die sets, cutters and refurbishment services; provide part drawings and production parameters to size tooling correctly.

Regular maintenance includes daily cleaning, lubrication of bearings and guideways, periodic checking of crankcase oil, inspection of dies and cutters, and tightening of fasteners. A preventive maintenance schedule (daily/weekly/monthly) and spare-parts list will be supplied by the manufacturer. Planned downtime for die inspection and replacement is recommended.

Yes. These cold heading machines are designed to work in tandem with automatic wire rolling/feeding machines. Integration options include in-line wire feeders, straighteners and automatic part conveyors. The supplier can provide or adapt interfaces for your existing line.

Lead time varies by model, tooling complexity and customization — typically a few weeks to several months. The manufacturer usually offers packing for export, sea/air freight assistance, on-site installation, commissioning and operator training (terms depend on the order). Confirm lead time and service scope when requesting a quote.

Dimensional tolerances depend on part geometry, tooling accuracy, material and process control. Cold heading typically achieves tight dimensional control suitable for most fastener standards. For critical tolerances or surface finish/hardness requirements, supply detailed drawings and functional requirements so tooling and process can be engineered accordingly.

Yes. The manufacturer provides customization of die sets, head forms, feeders and automation (e.g., part transfer, inspection, packaging). Discuss required part profiles, volumes and any downstream automation needs to get a tailored solution and quote.

The manufacturer provides technical support, installation and operator/maintenance training as part of the purchase agreement. Warranty terms, spare-parts availability and service contracts vary — ask the supplier for specific warranty duration, coverage and service-level options.

Provide part drawings (2D/3D), target material and hardness, required production rate (pcs/min), expected annual volume, preferred model size constraints and any automation needs. With these details the supplier can recommend a model, tooling solution and provide pricing, lead time and service options.