Permanent Magnet Hysteresis Damper, Tensioner & Torque Tester

Permanent Magnet Dampers, Tensioners & Torque Testers

Engineered for precision industrial applications, these Permanent Magnet Hysteresis Dampers deliver consistent, repeatable torque control without the need for electrical power. Whether you require smooth tension regulation on winding lines, accurate torque testing, or reliable load damping across rotating machinery, this unit offers a robust, maintenance-friendly solution. Made in Mainland China.

Key Features

• No Power Required: Fully passive operation — permanent magnets generate stable hysteresis torque without electrical input, reducing energy costs and complexity.
• Consistent Torque Output: Hysteresis principle ensures smooth, vibration-free torque delivery ideal for precision tensioning and damping tasks.
• Versatile Application: Suitable for wire winding, film slitting, cable manufacturing, textile machinery, lab torque testing, and more.
• Durable Construction: Built with high-quality magnetic materials for long service life and minimal maintenance requirements.
• Non-Contact Operation: The hysteresis mechanism eliminates mechanical wear between components, ensuring longevity and consistent performance over time.
• Compact & Efficient Design: Space-saving form factor allows easy integration into existing machinery setups.
• No High-Concern Chemicals: Safe for use in a wide range of industrial and laboratory environments.

Specifications

• Type: Permanent Magnet Hysteresis Damper / Tensioner / Torque Tester
• Electrified: No (passive, no electrical connection required)
• High-Concern Chemicals: None
• Country of Origin: Made in Mainland China

Typical Applications

• Wire, cable & fiber optic winding/unwinding lines
• Textile and yarn tension control
• Plastic film and foil slitting machines
• Laboratory torque measurement and testing rigs
• Precision motor and drive load simulation

Why Choose a Hysteresis Damper?

Unlike friction-based or powder brake tensioners, hysteresis dampers use the magnetic properties of specially formulated rotor materials to produce torque. This results in a smooth, consistent, and speed-independent torque curve — perfect for applications where tension uniformity directly impacts product quality. Learn more about magnetic measurement principles at NIST Manufacturing Topics.

Related Products You May Like

• 1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino
• 1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler

Frequently Asked Questions

Q: What is a permanent magnet hysteresis damper and how does it work?

A: A permanent magnet hysteresis damper uses the magnetic hysteresis properties of a specially engineered rotor material. As the rotor moves through the magnetic field created by permanent magnets, a resistive torque is generated proportionally. Because no physical contact is made, the torque output is smooth, consistent, and largely independent of rotational speed — making it ideal for tensioning, damping, and torque-testing applications in industrial machinery and laboratories.

Q: Does this damper require an electrical power supply to operate?

A: No. This unit is entirely passive — it operates solely on the force of its permanent magnets and requires no electrical connection. This simplifies installation, eliminates electrical hazards, and reduces operating costs, making it suitable for environments where power connections are impractical or undesirable.

Q: What industries or machines are these permanent magnet dampers typically used in?

A: Permanent magnet hysteresis dampers and tensioners are widely used in wire and cable manufacturing, fiber optic production, textile machinery, plastic film slitting lines, printing equipment, and laboratory torque testing setups. Any application that requires precise, consistent tension or load control on rotating components can benefit from this technology.

Q: How do I select the correct torque or tension range for my application?

A: The correct unit depends on your required torque range, shaft diameter, and operational speed. Please review your machinery's tension or load specifications before ordering. If you need assistance selecting the right model, feel free to contact us with your application details and we'll be happy to help.