Z42 Automatic Metal Screw Cold Heading Forming Machine

Automatic nut tapping at up to 90 pieces per minute from hopper to finished part.

The Z42 eliminates manual handling in hex nut threading operations through integrated hopper feeding and automated tapping cycles. Purpose-built for fastener manufacturers requiring consistent M6/M8 production volumes with minimal operator intervention and floor space requirements.

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Key Specs

Key Specs

Weight

800/950KG

Capacity

68

Voltage

380V

Overview Points

Hands-Free Operation

Load hex nut blanks into hopper; machine handles feeding, clamping, and tapping automatically

High Speed Output

Delivers up to 90 pcs/min (M6) or 70 pcs/min (M8) with consistent cycle times

Standard Threading Range

Maximum tapping diameter of M6 or M8 for standard small-to-medium hex nut production

Energy Efficient Drive

2.2 KW motor on 380V supply reduces per-unit production costs versus larger equipment

Space Saving Design

800-950 kg machine weight fits smaller workshops without special foundation needs

Simplified Maintenance

Belt-driven mechanical structure minimizes failure points for straightforward upkeep

Secure Workholding

68 maximum clamping capacity ensures stable positioning during tapping cycles

Protected Operation

Cast-iron frame with enclosed forming section provides stability and operator safety

Key Features

The Z42 accepts bulk hex nut blanks through an integrated hopper and automatically feeds, orients, clamps, and taps each piece at rates up to 90 pcs/min for M6 and 70 pcs/min for M8. Once the hopper is loaded, the machine runs continuously with no manual handling between cycles, freeing operators for other tasks on the production line.

A 2.2 KW motor on a standard 380V supply drives the entire forming and tapping process. Compared to larger thread-processing equipment that may draw 6–18 KW, the Z42 keeps electricity costs significantly lower while maintaining throughput suitable for dedicated small-fastener production cells.

The belt-driven mechanical design uses fewer hydraulic or electronic components than comparable machines, which reduces both the frequency and complexity of maintenance. Replacement parts — belts, dies, and clamping components — are standard items, minimizing downtime when service is needed.

At 800–950 kg, the Z42 can be positioned on a standard factory floor without reinforced foundations. Its small footprint makes it practical to deploy multiple units in parallel for higher aggregate output or to dedicate individual machines to specific nut sizes.

The fully enclosed forming section and belt guard keep moving components shielded during operation. Control levers are positioned for clear access, and the mechanical simplicity of the machine means fewer unexpected failure modes during continuous production shifts.

Technical Specifications

The machine can automatically feed and tap the hexagonal nut material after putting it into the funnel. This machine has a simple structure, safe operation, easy maintenance and high degree of automation.

NO.
1 Name Z42Automatic screw cold heading machine
2 Rated voltage 380V
3 Drive motor 2.2KW
4 Max. tapping diameter M6/M8
5 Productivity 90 or 70pcs/min
5 Max. clamping capacity 68
6 Weight 800/950KG

Applications

Mass production of M6 and M8 hexagonal nuts for fastener suppliers

Automotive and motorcycle component manufacturing requiring small threaded fasteners

Electrical panel and appliance assembly fastener production

Hardware and building material fastener manufacturing

OEM fastener supply for HVAC equipment and home appliance factories

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FAQ

The key specifications of Z42 Automatic Metal Screw Cold Heading Forming Machine include: Weight: 800/950KG, Capacity: 68, Voltage: 380V. Contact us for the full specification sheet.

Z42 Automatic Metal Screw Cold Heading Forming Machine is widely used in: Mass production of M6 and M8 hexagonal nuts for fastener suppliers; Automotive and motorcycle component manufacturing requiring small threaded fasteners; Electrical panel and appliance assembly fastener production; Hardware and building material fastener manufacturing.

All NTBOBO machines come with a 1-year warranty from the date of Bill of Lading. Our engineering team provides 24-hour technical support throughout the warranty period.

We accept 30% down payment by T/T (Telegraphic Transfer), with the balance due before shipment. Other payment arrangements can be discussed for long-term partners.

Standard delivery is within 10-35 working days after receiving the down payment, depending on the machine model and customization requirements.

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