At SHINETOP (Shengtuo Machine), we specialize in advanced cold forging solutions tailored for high-speed production of bolts and fasteners. Our multi-station nut bolt washer making machine —also known as automatic bolt making machines—are engineered for mass production of precision bolts and nuts with exceptional consistency and minimal material waste. Designed for demanding industrial applications, each bolt manufacturing machine delivers superior performance through multi-die, multi-blow forming technology, ensuring strength, accuracy, and energy efficiency.
Backed by ISO9001:2008 and CE certifications, our equipment is trusted by manufacturers in over 15 countries worldwide.
Cold Heading Machine: The Excellent Choice for Efficient Manufacturing
The cold forging nut former machine is a powerful assistant in industrial manufacturing. With its highly efficient and precise performance, it brings a brand-new production experience to enterprises.
Powerful Processing Capacity
The bolt former machine has a powerful processing capacity. It can quickly form raw materials by cold heading, significantly improving the production efficiency.
High Precision and Quality
Its precise technology ensures the stable and reliable quality of products with high dimensional accuracy.
Ease of Operation
It is easy to operate, reducing labor costs and operational difficulties.
Stability and Durability
The cold heading machine has good stability and durability. It can maintain excellent performance even during long-term operation.
Versatility in Handling Components
Whether it's small parts or large components, the cold heading machine can handle them with ease.
Competitive Advantage
Choosing the nut bolt manufacturing machine means choosing an efficient and high-quality production method. It enables your enterprise to stand out in the fierce market competition.
Three Die Three Blow vs. Four Die Four Blow Bolt Forming Machine
Mold Structure and Process Quantity
- The three-die and three-punch cold automatic bolt making machine has three
molds and conducts three punching processes in sequence. Generally, it first performs upsetting, then pre-forming, and finally forming. On the other hand, the four-die and four-punch bolt former has four molds and undergoes four punching processes. With one more punching process than the three-die and three-punch machine, it can perform more detailed processing on the product, having an advantage in forming complex-shaped heads or handling special treatments on the shank, for example.
Product Forming Capability
- The three-die and three-punch cold heading machine is mainly used to produce products with relatively simple shapes and slightly lower precision requirements. For instance, common hexagon head bolts and other fasteners with regular shapes and not overly complex structures. The four-die and four-punch cold heading machine is capable of producing products with complex shapes and high precision requirements, such as parts with special head shapes (such as those with recesses, protrusions and other complex structures) or those requiring special processing on the shank (such as knurling).
Difference in Production Efficiency
- When producing some simple products, the production speed of the three-die and three-punch cold heading machine may be similar to that of the four-die and four-punch machine. However, for complex products, the efficiency of the four-die and four-punch machine is higher. Because its multiple processes can better allocate processing tasks, reducing the processing burden on individual molds, thus enabling the production of more products that meet the requirements of complex shapes within a unit of time.
Cost and Application Range
- The cost of the three-die and three-punch equipment is relatively low, and its occupied area may also be smaller. It is suitable for small and medium-sized enterprises to produce ordinary standard parts, and the application scenarios of the products are mainly in the fields of general mechanical connections where the shape precision requirements are not extremely high. The four-die and four-punch equipment usually has a higher price and may occupy a larger area. It is applicable to industries with high requirements for product quality and shape precision, such as the automotive, aerospace and other high-end manufacturing industries, for producing complex parts such as fasteners for key parts.
FAQs of Multi-station Bolt Forming Machine
Problem 1: Excessive Wear of Cold Heading Machine Molds
- Causes:
- The raw materials may be of poor quality, containing a relatively large number of hard impurities, which intensifies the friction on the molds.
- The quality of the mold materials themselves is not good, and the hardness and toughness do not meet the ideal standards.
- The punching frequency is too high and the single punching load is too large, causing the molds to be overused.
- Solutions:
- Strictly control the quality of raw materials and do a good job in the inspection and screening of raw materials.
- Select high-quality mold materials and choose molds with appropriate hardness and toughness according to the product requirements.
- Reasonably adjust the punching parameters of the cold heading machine to avoid excessive punching.
Problem 2: Product Dimensions Not Meeting the Precision Requirements
- Causes:
- The molds are not installed accurately, and there are deviations in the coordination between the molds.
- The accuracy of the feeding mechanism of the cold heading machine is not enough, resulting in inaccurate delivery positions of the billets.
- There are looseness or wear in the mechanical structure of the equipment itself, which affects the processing accuracy.
- Solutions:
- Reinstall and carefully calibrate the molds to ensure the precise coordination between the molds.
- Inspect and debug the feeding mechanism to improve the feeding accuracy.
- Regularly inspect and maintain the mechanical structure of the equipment, tighten loose parts, and replace worn parts.
Problem 3: Abnormal Noises During the Operation of the Equipment
- Causes:
- There is insufficient lubrication of the mechanical components, resulting in increased friction and noise generation.
- Foreign objects have entered the interior of the equipment and collided with the rotating components.
- Some components such as bearings and gears are worn or damaged.
- Solutions:
- Add lubricants in a timely manner according to the requirements of the equipment to ensure a good lubrication state.
- Stop the machine to check and remove the foreign objects, and at the same time check whether the protective devices are intact.
- Replace the worn or damaged components and regularly inspect the key components.
There are many bolt making machine manufacturers, but we are one of the best choices for you.
As a professional cold forming machine manufacturers, shinetop trys our best to provide Multi-station parts forming machine and service for you.