The Difference Between Cold Header Machine and Screw Heading Machine

In the fine craftsmanship of mechanical manufacturing, both cold heading machines and screw heading machines hold a significant position, each playing a crucial role in their specific fields. However, they differ significantly in terms of working principles, structural composition, processing characteristics, and application scope. Below, we will delve into the main differences between cold heading machines and screw heading machines.

Working Principles and Uses

• Cold Heading Machine: It is based on cold processing technology, shaping metal materials at room temperature by applying pressure. This process does not involve high temperatures, ensuring the purity and original strength of the metal materials. The cold heading machine is widely used in the mass production of standard parts such as nuts and anchor bolts. Their efficiency and stability are especially evident in the automotive and construction industries.

• Screw Heading Machine: Although a screw heading machine can be broadly considered a type of cold heading machine, its primary function is to forge the head shapes of screws or non-standard parts. It uses mechanical force to directly impact the workpiece, achieving shape formation and precise size adjustment. In the automotive, aerospace, and mechanical manufacturing industries, screw heading machines play an indispensable role.

Structure and Composition

• Cold Heading Machine: Its structure is complex, consisting of a main machine, feeding device, cold heading head, power transmission system, lubrication system, control system, and safety protection devices. The precise coordination of these components ensures that the cold forging header machine can efficiently and stably complete processing tasks.

• Screw Heading Machine: Its structure is relatively simple, mainly composed of a frame, slider, connecting rod, crank mechanism, and punch. The rotation of the crank mechanism drives the slider and punch to perform reciprocating motion, thereby achieving impact and shaping of the workpiece.

Processing Characteristics and Advantages

• Cold Heading Machine: Its processing process is stable, ensuring high precision and high quality of products. Additionally, due to the characteristics of cold processing, no extra heat is generated during the process, avoiding thermal deformation and strength reduction of the materials.

• Screw Heading Machine: It has high flexibility and adjustability, with parameters like impact force and impact frequency adjustable according to different processing requirements. This allows the screw heading machine to handle various materials and achieve precise shaping of complex shapes.

Application Fields

• Cold Heading Machine: In the automotive industry, cold heading machines are widely used to produce various fasteners and connectors such as bolts and nuts. In the construction industry, this fastener making machinery is also used to process various steels and alloy materials, producing a wide range of threaded rebar and fasteners.

• Screw Heading Machine: In the automotive and aerospace fields, screw heading machines are used to process various precision parts and components, such as screws and bolts. In the mechanical manufacturing industry, they are also commonly used to process various non-standard and special parts.

In summary, cold heading machines and screw heading machines play important roles in the field of mechanical manufacturing. They differ significantly in terms of working principles, structural composition, processing characteristics, and application scope. When choosing which equipment to use, it is necessary to comprehensively consider specific processing needs and production environments.