Zhejiang Shengtuo Machinery Co., LTD
Zhejiang Shengtuo Machinery Co., LTD

What Is A Cold Header Machine?

Mar 01, 2023
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    What Is a Cold Header Machine?

    A cold header machine, also known as a cold forming machine or a cold heading machine, is a type of machine that is used to form metal parts from wire or rod stock without the need for heat. Cold heading is a process of forming metal parts by applying pressure to the material using a series of dies and punches.


    In a cold header machine, the wire or rod stock is fed into the machine and then clamped in place. A series of punches and dies are used to shape the material, creating the desired form of the part. The process is carried out at room temperature, which is why it is called "cold" forming.


    Cold header machines are used to produce a wide range of metal parts, such as bolts, screws, pins, rivets, and other fasteners. They are often used in industries such as automotive, aerospace, and construction, where high-quality and precise metal parts are required. Cold heading is a cost-effective and efficient process that produces parts with excellent strength and durability.


    How Does a Cold Header Machine Work?

    A typical cold heading process begins with feeding a coil or wire of metal into the machine. The wire is then straightened and cut into precise blanks. These blanks are transferred through one or more die stations, where they are progressively formed into the desired shape using high-speed mechanical or hydraulic force.

    Cold forming processes may include:

    • Upsetting: Compressing the blank to increase its diameter

    • Extrusion: Forcing metal to flow through a die cavity

    • Heading: Creating complex shapes like bolt heads

    • Piercing: Creating holes or indentations

    The entire operation happens at high speed—up to hundreds of parts per minute—making cold headers ideal for mass production.


    Cold Heading vs. Hot Forging: What's the Difference?


    Feature

    Cold Heading

    Hot Forging

    Temperature

    Room temperature

    High temperature (over 1,000°F/538°C)

    Surface Finish

    Excellent

    Rougher finish

    Material Strength

    Increased due to work hardening

    May require heat treatment afterward

    Tolerance

    High precision

    Less precise

    Energy Consumption

    Lower

    Higher



    Types of Cold Header Machines from SHINETOP

    As one of the most professional cold heading machine manufacturers in China, SHINETOP offers a full range of machines tailored to fastener and parts production:

    1. Multi-Station Bolt Forming Machines

    Designed for the mass production of standard and special bolts with superior head accuracy and thread quality.

    • Three Die Three Blow Bolt Forming Machine

    • Four Die Four Blow Bolt Forming Machine

    2. Multi-Station Parts Cold Forging Machines

    Ideal for forming complex and multi-step parts used in automotive and mechanical applications.

    • Five Die Five Blow Bolt Parts Forming Machine

    • Six Die Six Blow Bolt Parts Forming Machine

    • Seven Die Seven Blow Bolt Parts Forming Machine

    3. Thread Cold Rolling Machine

    For high-speed precision thread forming, with excellent surface finish and thread accuracy. Suitable for various bolt types and shafted components.

    Each machine type is engineered with a robust structure, precise transmission, and easy-to-operate automation systems.


    multi-station-bolt-forming-machine.jpg


    multi-station-parts-forming-machine.jpg


    st-100-m40-high-speed-thread-rolling-machine.jpg


    Benefits of Cold Heading

    Cold heading offers several advantages over traditional metalworking techniques:

    • High production efficiency: Capable of producing parts at high speed with low cycle times

    • Excellent material utilization: No cutting or grinding means little to no material waste

    • Superior mechanical properties: Cold working improves strength and grain structure

    • Dimensional consistency: High repeatability across large production batches

    • Cost-effective: Reduces raw material use, energy consumption, and secondary processes

    Common Applications of Cold Header Machine

    Cold heading is widely used in industries that require fasteners and precision parts in large volumes, such as:

    • Automotive – Bolts, shafts, axles, spark plug shells

    • Construction – Screws, anchors, rivets

    • Electronics – Contact pins, micro screws

    • Aerospace – Specialty fasteners and lightweight components

    • Machinery – Custom cold-formed parts with complex shapes


    SHINETOP's Technology Advantages

    At SHINETOP, we're committed to delivering performance-driven machines backed by leading technologies:

    • Robotic Tool Change System
      Switch between punch blocks and die blocks in as little as 3 minutes. Six sets can be pre-installed in the tool magazine, ensuring efficient small-batch production with high precision.

    • Hybrid Tool Change Flexibility
      Our machines allow dies and punches to be changed either simultaneously or independently, increasing flexibility and reducing downtime.

    • Certified Quality Assurance
      All machines are ISO9001:2008 certified and CE marked. Each unit undergoes strict inspection, functional testing, and performance verification before delivery.

    • Global Service & Support
      Our machines are exported to Russia, India, Turkey, Brazil, South Korea, and many other countries, with a reputation for reliability and service excellence. Every customer enjoys 1-year warranty coverage, technical support, and training. Our service doesn’t end with delivery—it starts there.

    FAQs About Cold Heading

    Q1: What materials are suitable for cold heading?
    Low- and medium-carbon steel, stainless steel, brass, copper, and aluminum alloys are commonly used.

    Q2: How does cold heading compare to hot forging?
    Cold heading is cleaner, faster, and more material-efficient, though hot forging is preferred for very large or heat-sensitive parts.

    Q3: Can SHINETOP machines handle custom part designs?
    Yes. We offer tailor-made solutions to fit your unique production needs, from bolt to complex formed parts.

    Q4: Do you provide installation and training services?
    Absolutely. We offer remote guidance, video tutorials, and on-site technician support where needed.


    References