This high-performance automatic thread rolling machine is specially engineered for cold forming external threads on bolts, screws, studs, pins and other fastener workpieces. Adopting a 3-die cylindrical rolling structure, it produces precise, smooth and high-strength threads with no chip generation, greatly improving material utilization and production efficiency. It is an ideal core equipment for fastener manufacturing plants, hardware processing workshops and automotive component factories.

This cold heading machine (heading machine) is specialized equipment for fastener head cold forging. It cuts steel wire and forms screw/bolt heads in one station. Widely used for manufacturing standard and non-standard fasteners. Our machine adopts one die two blow structure, featuring high efficiency, stable performance and long service life. It is the core equipment matched with thread rolling machine to complete full screw production line.

Various types of thread rolling machine to meet your various needs.

Various types of thread rolling machine to meet your various needs.

Various types of thread rolling machine to meet your various needs.

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

Our automatic nut making machine adopts robust frame structure to realize nut cold forming. It can produce various nuts with high consistency. Simple operation and long service life, perfect for fastener manufacturing plants.

Our automatic nut making machine adopts robust frame structure to realize nut cold forming. It can produce various nuts with high consistency. Simple operation and long service life, perfect for fastener manufacturing plants.

Our automatic nut making machine adopts robust frame structure to realize nut cold forming. It can produce various nuts with high consistency. Simple operation and long service life, perfect for fastener manufacturing plants.

Various types of thread rolling machine to meet your various needs.

Various types of thread rolling machine to meet your various needs.

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(NINGBO), one Thread rolling machine factory(NINGBO), one Heat treatment furnace factory (SUQIAN) and one Electroplating equipment factory(WUXI).

We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world. 

With our reputation increasing and our team becoming more professional, we have experienced a significant growth in business during the recent years. Nowadays, more and more reputed companies compete in a long-term cooperation with us.

We abide by the principles of honesty, credibility, and mutual-benefit. Our motto is “ONCE BUSINESS, FOREVER FRIENDS”, we will do our best to serve clients at home and abroad. Due to our top-notch professional knowledge and rich trad experience, we have seen our market developing ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you. Let's build a great future together!

High speed nut former, nut making machine,nut forging machine to make hex,flange, nylock nut and special nut parts.

Trimetal Composite Contact Cold Header can make six different metals be compounded together under cold state to produce composite contacts according to the technique requirements. Its working process includes the following steps: Sending two different kinds of metal wire into the machine firstly, transmitting them into the mould after being cut off. Then by two times upsetting process, the two kinds of metal become the composite contacts. Finally, the products retreat from the mould and enter into the finished product box.

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

high quality hydraulic forging press bolt making machine power hammer cold forging machine

high quality hydraulic forging press bolt making machine power hammer cold forging machine

Product Overview

Our continuous mesh belt quenching furnace is a professional industrial heat treatment solution specially developed for mass production of fasteners and metal hardware. It is widely matched with cold heading machines and thread rolling machines to form a complete fastener production line, realizing continuous automated quenching, tempering and cooling processes, which greatly improves production efficiency and ensures stable and consistent mechanical properties of finished products.

Core Features & Advantages

1. Precise & Uniform Temperature Control The furnace adopts multi-zone independent PID temperature control system with high-sensitivity thermocouples, which ensures uniform temperature distribution in the furnace chamber, effectively reduces workpiece deformation and unqualified rate, and guarantees stable hardness and strength of batch products.
2. High Energy Efficiency & Low Consumption Lined with high-density aluminum silicate fiber insulation layer, the furnace has excellent heat preservation performance, which reduces heat loss by more than 20% compared with traditional brick furnaces, effectively lowering long-term operation cost.
3. Fully Automatic Intelligent Operation Equipped with PLC control system and touch screen human-machine interface, parameters such as heating temperature, mesh belt running speed and production rhythm can be preset, monitored and adjusted in real time. The equipment can run continuously for 24 hours with less manual intervention.
4. Optimized Workpiece Quality Protective atmosphere system is optional, which can effectively reduce surface oxidation and decarburization of workpieces during heat treatment, improve the surface quality of finished products, and reduce the workload of subsequent finishing processes.

Application Fields

It is suitable for heat treatment processes such as quenching, tempering, normalizing and stress relief of various carbon steel, alloy steel and stainless steel standard parts, fasteners, hardware accessories, small auto parts and electronic stamping parts.

Customization & Service

We support fully customized design according to your production capacity, workpiece specifications, process requirements and on-site power conditions. The product comes with a 12-month whole-machine warranty, and we provide lifelong technical support, original spare parts supply, as well as optional on-site installation, commissioning and operator training services.

Product Overview

Our automatic thread rolling machine is a high-efficiency cold forming equipment specially designed for mass production of threaded fasteners. It can be matched with cold heading machines to form a complete fastener production line, completing precise thread rolling on screws, bolts, studs and other workpieces. Compared with traditional thread cutting process, cold thread rolling significantly improves production efficiency, surface finish and mechanical strength of finished threads, with very low material waste.

Core Advantages

1. High Precision & Stable Forming Quality The machine adopts heavy-duty cast iron fuselage with excellent rigidity, which effectively suppresses vibration during high-speed operation and ensures consistent thread pitch and depth. The thread die is positioned precisely to produce full, smooth and burr-free threads, delivering a high qualification rate for batch production.
2. Fully Automatic Operation, Labor Saving Equipped with a high-performance vibratory bowl feeder, the machine realizes automatic workpiece sorting, feeding and continuous thread rolling. The PLC control system with touch screen allows operators to easily set and adjust production speed, feeding rhythm and other parameters, greatly reducing labor intensity and labor cost.
3. Durable Structure, Low Maintenance Cost Core electrical components are sourced from well-known domestic and international brands for stable performance and long service life. The built-in automatic circulating lubrication and cooling system fully lubricates transmission parts and cools thread dies, effectively prolonging the service life of wearing parts and cutting daily maintenance costs.
4. Strong Process Adaptability It is suitable for processing workpieces made of carbon steel, alloy steel, stainless steel, copper and aluminum. By replacing different thread dies, the machine can produce threads of various specifications and types, meeting the diversified production needs of both standard fasteners and custom non-standard parts.

Application Fields

This thread rolling machine is widely used in fastener manufacturing, hardware processing, auto parts, construction hardware, electronic appliances and other industries. It is an ideal choice for producing machine screws, self-tapping screws, hex bolts, studs, threaded rods and other threaded products.

Service & Support

We provide a 12-month whole-machine warranty, lifelong technical consultation and original spare parts supply. Every machine undergoes full-load running test before delivery. We offer remote guidance for installation, debugging and operator training, and on-site service by professional technicians is also available upon request.