Friction/Torque Hinge, this seemingly simple mechanical device, is an indispensable key component in modern industrial equipment. It achieves arbitrary Angle positioning of moving parts through precisely controlled friction, making it play a crucial role in professional fields.
With over 10 years of professional R&D experience, the Fornd brand has become the industry benchmark in friction/torque hinge technology. As a leading manufacturer specializing in high-end hardware accessories, Fornd is always committed to providing the most reliable hinge solutions for various industrial fields.
What Is a Friction/Torque Hinge?
Friction/torque hinge, a specially designed rotating connection component. When it comes to friction/torque hinges, it is impossible not to mention their core feature, which is that they can remain stable at any position within the rotation range without the need for additional locking mechanisms.
Compared with ordinary hinges, it has the following professional characteristics:
1. Adjustable holding torque: Provides precisely controllable rotational resistance
2. Stepless positioning function: Supports staying at any angle within the range of motion
3. High load capacity: Specifically designed for heavy-duty working conditions
4. Long-life design: Meets the frequency requirements of industrial-grade use
Therefore, friction/torque hinges have solved the position retention problem that traditional hinges cannot achieve in professional fields such as industrial automation, medical equipment, and rail transit.
How Do Friction/Torque Hinges Work？
Professional-grade friction/torque hinges adopt a multi-layer composite structure design. Its core shaft system is a high-precision ground stainless steel shaft, with a tolerance controlled within ±0.005mm. The friction component is a preload system composed of specially treated copper-based composite material friction plate groups, disc spring groups or threaded preload mechanisms. The protective structure is composed of an aluminum alloy or engineering plastic shell.
The working principle is based on Coulomb's law of friction, generating a stable frictional torque through precisely controlled contact pressure. Key technical indicators generally include:
1. Torque range: Typically 5-200N·m, and industrial-grade products can reach over 500N·m
2. Torque stability: Torque attenuation does not exceed 15% throughout its entire life cycle
3. Temperature adaptability: Operating temperature range: -40℃ to 120℃
4. Protection grade: IP54 or above, up to IP68 in special environments
Application Fields of Friction/Torque Hinges
• Industrial automation equipment: Such as CNC machine tool operation panels, industrial robot control boxes, and other occasions that require frequent position adjustment.
• Medical professional equipment: Namely, precision equipment such as medical imaging displays, surgical lights, and dental treatment tables.
• Rail transit equipment: Such as folding table boards and display stands on high-speed trains and aircraft.
• Energy and power equipment: Commonly seen in substation control cabinets, generator set operation panels, etc.
• Military equipment: Military communication devices, field medical units, etc., meeting the environmental adaptability requirements of the MIL-STD-810G military standard.
Types of Friction/Torque Hinges
• Heavy-duty flat hinge: This type of hinge is suitable for industrial control cabinets, equipment inspection doors, etc. For instance, the Sugatsune HG-TS series has a torque range of 15 to 40kgf·cm and a lifespan of over 100,000 cycles.
• Multi-axis composite hinges: used for precision equipment that requires complex motion trajectories. For instance, the multi-degree-of-freedom hinge system commonly used in medical endoscope arms.
• Environmentally adaptable hinges: including special designs such as explosion-proof type, corrosion-resistant type, and wide-temperature type. Such as 316L stainless steel hinges used on oil platforms.
• Micro precision hinges: Mainly used in optical instruments, precision measuring equipment, etc. In practical applications, the focusing mechanism of Zeiss microscopes adopts a micro torque hinge.
• Adjustable professional hinge: This type of hinge supports on-site torque adjustment and is most suitable for industrial scenarios that require precise debugging.
In addition, the torque hinges manufactured by Fornd mainly add functionality to doors and panels, providing a high-quality sensory experience and performance. It offers two types of torque hinges: one is a constant torque hinge, whose torque force is set during the manufacturing stage and remains constant throughout the hinge's entire service life; Another type is the adjustable torque hinge, which enables users to adjust the tension of the hinge by using screws or other mechanisms.
The advantages of Fornd's hinges can be reflected in four points: they come in a variety of materials and styles, have a long service life and can be reused
It is easy to install and fix, and can maintain stable performance without maintenance or repeated adjustments.
Maintenance and Reliability Management
Professional maintenance of friction/torque hinges requires regular inspection of torque performance, the use of professional lubricants, monitoring of hinge wear, and record-keeping of maintenance logs.
In addition, common faults of friction/torque hinges can be found at:
1. If the torque attenuation occurs, the preload system needs to be inspected.
2. The movement is stuck. The shaft system needs to be cleaned and lubricated.
3. If there is abnormal noise, you can check the condition of the bearing.
4. Position drift is used to assess the wear of the friction plates.
About Fornd
As an expert in the field of friction/torque hinges, the Fornd brand has always adhered to driving product upgrades through technological innovation. Whether it's standard products or special application requirements, Fornd can provide you with the most suitable hinge products.
Fornd promises:
• Professional technical support team responds 24 hours a day
• A complete after-sales service system
• Rapid sample supply and delivery guarantee
Continuous product upgrading and innovation
Choosing Fornd means choosing professional quality. Welcome to visit the Fornd official website to learn more detailed information about friction/torque hinge products. Let Fornd be your trusted partner for industrial connection solutions!
