English
Precision Shoulder Screw is a high-precision mechanical fastener used for supporting, positioning and transmitting torque. They have a unique shoulder design, which is usually threadless, providing precise positioning and supporting functions, and are widely used in various applications that require high-precision positioning and load transfer. Precision shoulder screws are usually used in mechanical transmission systems, automation equipment, aerospace, automotive industry and other fields. Its main features are high load capacity, corrosion resistance, wear resistance and excellent precision.
As a professional precision shoulder screw manufacturer, JeaSnn has complete CNC processing equipment and precision assembly technology, and can provide high-quality customized precision shoulder screw products according to customer requirements.
Processing Equipment and Manufacturing Process
The production of precision shoulder screws requires high-precision processing equipment and exquisite manufacturing technology. JeaSnn has advanced CNC processing equipment and adopts the following manufacturing processes:
CNC Lathe: Mainly used for processing the cylindrical part, shoulder and threaded part of the screw. Lathe processing can ensure that the outer diameter, shoulder height and thread accuracy of each shoulder screw meet the design requirements.
CNC Milling Machine: Suitable for processing shoulder details, including shoulder shape, length, diameter, etc., to ensure high precision of the screw.
CNC Drilling Machine: Used to perform precise hole processing on the shoulder or threaded part of the screw to meet the requirements of the hole position in product design.
CNC Threading Machine: Specialized in cutting precision threads to ensure the accuracy and consistency of threads and meet the needs of different specifications.
Precision Grinding Machine: Used to further improve the smoothness and precision of the shoulder screw surface to ensure that its surface quality meets high standards.
The combination of these equipment enables JeaSnn to ensure the dimensional accuracy, surface quality and structural strength of each precision shoulder screw to meet high-demand industrial applications.
The material selection of precision shoulder screws is crucial because it directly affects the strength, corrosion resistance and service life of the screws. JeaSnn usually uses the following high-quality materials to produce precision shoulder screws:
Stainless steel (e.g. 304 stainless steel, 316 stainless steel): Stainless steel materials have excellent corrosion resistance, high temperature resistance and good strength, and are suitable for food processing, medical equipment, chemical industry and other Industries with high corrosion resistance requirements.
Carbon steel (e.g. C45, AISI 1018): Carbon steel has high strength and hardness, suitable for mechanical devices that need to bear large loads. After heat treatment, the hardness and wear resistance of carbon steel shoulder screws can be further enhanced.
Alloy steel (e.g. Alloy 4140): Alloy steel shoulder screws have higher tensile strength and hardness, suitable for use in high load and high temperature environments.
Aluminum alloy: Aluminum alloy shoulder screws have lighter weight and higher corrosion resistance, suitable for equipment or environments with lighter weight requirements.
The choice of materials will be determined by the application requirements and environmental conditions of the screws. JeaSnn provides customized material options to meet the special needs of customers.
Precision and tolerance
The precision requirements of precision shoulder screws are extremely high, and the precision shoulder screws produced by JeaSnn have strict tolerance control. The standard tolerance range is usually:
Outer diameter tolerance: ±0.05mm
Shoulder tolerance: ±0.1mm
Thread tolerance: ISO 2 grade thread accuracy, ensuring consistent thread cutting.
Shoulder diameter tolerance: ±0.02mm
Shoulder length tolerance: ±0.1mm
To ensure high precision, JeaSnn uses advanced measuring tools for quality control, including three-dimensional coordinate measuring machine (CMM), laser measuring instrument, thread measuring instrument, etc. These equipment can accurately measure the size, shape and thread quality of each shoulder screw to ensure that it meets the design standards.
Surface treatment
Surface treatment is an important step to improve the performance, appearance and durability of precision shoulder screws. JeaSnn offers a variety of surface treatment options:
Electroplated (nickel, zinc, chrome): Electroplating can provide additional corrosion protection, enhance surface hardness, and improve appearance. Nickel and chrome plating are commonly used to improve the wear resistance and corrosion resistance of stainless steel screws.
Anodizing: For shoulder screws made of aluminum alloy, anodizing can form a hard oxide layer to increase its corrosion resistance and wear resistance, and also provide different color options for the screws.
Sandblasting: Sandblasting can effectively remove surface impurities and increase surface roughness, which is convenient for further painting and grip.
Phosphating: Used on steel surfaces, it can improve the corrosion resistance of screws and help reduce friction, especially suitable for the automotive and machinery industries.
According to the different needs of customers, JeaSnn can provide a variety of surface treatment technologies to enhance the adaptability and durability of precision shoulder screws.
Application optimization and characteristics of finished products
Precision shoulder screws have the following optimized applications and key features:
High-precision positioning and support: Due to the lack of threads on the shoulder, precision shoulder screws can provide precise positioning support in mechanical devices to ensure the stability and reliability of equipment components.
Strong load capacity: Precision shoulder screws can withstand large loads, especially for applications requiring high-strength support.
Corrosion and high temperature resistance: Precision shoulder screws perform well in harsh environments, and their corrosion resistance and high temperature resistance make them suitable for various industrial applications.
Smooth surface: After precision machining and surface treatment, the surface of precision shoulder screws is smooth, which reduces friction and increases service life.
These characteristics make precision shoulder screws widely used in many industries.
Application scenarios
The application scenarios of precision shoulder screws are very wide, mainly including the following fields:
Mechanical and automation equipment: Precision shoulder screws are used to support and position precision equipment such as mechanical transmission systems and automated assembly lines to ensure stable operation of the equipment.
Automotive industry: In the engine, transmission system, and suspension system of the car, precision shoulder screws are used to transmit torque and support to ensure the high performance and durability of the car.
Aerospace: In key components such as aircraft engines and control systems, precision shoulder screws withstand high-intensity loads and ensure high-precision assembly.
Electronic equipment: In electrical components and motor systems, precision shoulder screws are used for precise positioning and support to ensure the stability and durability of electrical equipment.
Medical devices: Used for high-precision assembly of medical equipment to ensure its reliability and safety, especially in fields that require extremely high precision.
JeaSnn's precision shoulder screw production, with its high-precision CNC Machining equipment, high-quality material selection and superb surface treatment technology, can provide high-quality precision shoulder screws that meet various industrial needs. Whether in the fields of machinery, automobiles, aerospace, electronics or medical equipment, JeaSnn is able to provide customers with high-quality, high-performance customized solutions.
