Nut Bolt Former Automatic Machine is a servo-driven cold forming machine for high-volume production of M12–M48 hex nuts, flange nuts, and bolts, with multiple models for different fastener sizes and production requirements.
Features
High Production Speed
The 160K series reaches 35–45 pcs/min, while the larger models operate at approximately 20–40 pcs/min, depending on machine size and product requirements.
Servo-Controlled Transfer
The servo system controls workpiece transfer between forming positions. The specified transfer accuracy is up to ±0.05 mm under the applicable operating conditions.
Fast Size Changeover
Digital servo presets and modular tooling help simplify size changes. A typical changeover, such as M20 to M24, can be completed in approximately 90 minutes, depending on the tooling and machine configuration.
Technical Specifications
|
Specification |
160K-3 / 3G |
200K-3 / 3G |
250K-3 / 3G |
315K-3 / 3G |
400K-3 / 3G |
|
Max. Clamping Diameter |
55 mm |
60 mm |
70 mm |
85 mm |
100 mm |
|
Max. Clamping Height |
50 mm |
60 mm |
60 mm |
75 mm |
80 mm |
|
Production Speed |
35–45 pcs/min |
30–40 pcs/min |
25–35 pcs/min |
20–30 pcs/min |
20–30 pcs/min |
|
Height Adjustment |
0–20 mm |
0–20 mm |
0–20 mm |
0–20 mm |
0–20 mm |
|
Working Beam Lift* |
0–120 mm |
0–120 mm |
0–120 mm |
0–120 mm |
0–120 mm |
|
Stroke |
170 mm |
220 mm |
250 mm |
250 mm |
300 mm |
|
Servo Motor |
3 / 4.5 kW |
3 / 4.5 kW |
3 / 4.5 kW |
3 / 4.5 kW |
4.5 / 4.5 kW |
|
Machine Weight |
2,000–2,100 kg |
2,500–2,600 kg |
2,900–3,000 kg |
3,200–3,300 kg |
approx. 3,700 kg |
Applications
|
Fastener Type |
Typical Applications |
|
Hex Nuts |
Automotive, machinery, construction |
|
Flange Nuts |
Automotive and industrial assembly |
|
Bolt Blanks |
Machinery, construction and general fastening |
|
Special Fasteners |
Customized industrial applications |
The suitable machine model and tooling depend on the fastener drawing, dimensions, material and required output.
Machine Structures
Main Frame: Supports the forming system during continuous operation.
Servo Drive System: Controls the transfer movement and operating parameters.
Forming & Die System: Includes dies, punches and clamping components for the specified fastener.
Transfer System: Moves workpieces between forming positions.
PLC Control System: Controls machine operation, parameter setting and monitoring.
Working Process
Material Feeding → Cut-Off → Forming → Workpiece Transfer → Nut / Bolt Blank Output
The exact forming sequence depends on the fastener design and tooling configuration.
For finished nuts or bolts, additional processes such as tapping, thread rolling, heat treatment or surface treatment may be required.
Customization Process
Requirement Analysis: Review component specifications, production capacity targets, and factory layout requirements with our engineering team.
Technical Proposal: Receive a tailored machine configuration, layout drawing, and production cycle estimate based on your specific fastener types.
Design & Manufacturing: Production and assembly of the machine and modular tooling following agreed technical specifications.
Factory Acceptance Testing: Pre-shipment testing at our facility to verify performance, accuracy, and sample part quality.
Delivery & On-Site Commissioning: Equipment delivery accompanied by engineer-led installation, calibration, and operator training at your plant.
Quality Control & Process
Material Verification: Inspection of raw structural materials and key mechanical components for hardness, structural integrity, and dimensional compliance.
Component Dimensional Inspection: Precision measurement of machined parts, tables, and transfer assemblies using calibrated gauges and coordinate measuring tools.
Functional & Servo Testing: Rigorous dry-run testing of the digital servo transfer system, stroke limits, and response times prior to assembly.
Pre-Shipment Trial Run: Full operational testing under simulated production conditions to verify forming stability, transfer accuracy, and noise levels.
Final Quality Documentation: Provision of comprehensive inspection reports, material certificates, and factory acceptance testing (FAT) records with the shipment.
Installation & After-Sales Support
On-Site Installation & Commissioning: Installation, calibration and first-piece inspection at your factory.
Operator Training: HMI operation, changeover, tooling adjustment and routine maintenance.
Remote Technical Support: Remote diagnosis, parameter adjustment and troubleshooting.
Spare Parts: Key components with 95% stock availability and dispatch within 48 hours.
Warranty: 12-month coverage for core mechanical and electrical components.
FAQ
Q: What fastener sizes and types can this machine handle?
A: It is optimized for M12 to M48 fasteners, handling gripping diameters up to 100 mm and lengths up to 150 mm, suitable for standard hexagonal nuts, flange nuts, and bolts.
Q: How long does a typical mold or size changeover take?
A: Size transitions, such as switching from M20 to M24, take under 90 minutes using digital presets and modular quick-change tooling.
Q: Can the machine integrate with existing factory automation or ERP systems?
A: Yes. It features standard Ethernet/IP and Modbus TCP ports for seamless data connection to MES or ERP platforms.
Q: What power and utility supplies are required for installation?
A: Standard configuration requires a 3-phase industrial power supply, with servo motor power ratings ranging from 3 kW to 4.5 kW depending on the specific model.
Q: What is the expected delivery lead time for standard orders?
A: Standard machine manufacturing and pre-shipment testing typically take between 12 to 16 weeks, depending on the exact model configuration.
Q: Is on-site installation and operator training provided?
A: Yes. Experienced engineers are dispatched to your facility to handle installation, calibration, first-article inspection, and hands-on staff training.
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