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Magnetic Powder Brake

A magnetic powder brake is a controllable braking component used in unwind, rewind and tension-control sections of roll-to-roll production lines. By adjusting excitation current, it provides smooth and stable braking torque to help maintain web tension during printing, coating, laminating, slitting and converting processes.

Key Selling Points

Smooth adjustable braking torque through excitation-current control.
Fast response and stable torque output for continuous roll-material production.
Simple structure with low noise, low vibration and easy maintenance.
Suitable for unwind and rewind tension control in printing, packaging, film, rubber, textile, wire and cable, coating and laminating lines.
Can work with tension controllers and tension sensors to form a closed-loop tension-control system.

Working Principle

When current is applied to the excitation coil, magnetic powder inside the brake forms particle chains under the magnetic field. These chains transmit torque between the rotating and fixed sides. Changing the excitation current changes the transmitted torque, allowing the machine to control braking force smoothly.

Selection Notes

Item	Information
Component type	Magnetic powder brake for unwind / rewind tension control
Control method	Braking torque adjusted by excitation current
Main advantages	Smooth torque, fast response, simple structure, low noise and low vibration
System pairing	Can be used with T500, T1000 or compatible tension controllers and tension sensors
Selection basis	Required torque, shaft size, mounting structure, heat dissipation, web width and tension range

Typical Applications

Unwinding and rewinding tension control
Printing, coating, laminating, slitting and converting lines
Plastic film, paper, rubber, textile, wire and cable production
Retrofit or replacement projects requiring smooth adjustable braking torque

Tell Us About Your Application

Every production line is different. To recommend a suitable system, we need to understand your material, web width, line speed, machine layout, quality-control target and required functions.

Send us your project details, machine photos or sample defects. Our team will review your application and help you choose a practical solution for print inspection, web guiding, tension control or in-line measurement.

Request a Quote

Order Process

1️⃣ Share Your Application
Tell us your material type, web width, line speed, machine layout and quality-control requirements.

2️⃣ Review the Solution
We review the application and recommend a suitable direction for print inspection, web guiding, tension control or in-line measurement.

3️⃣ Confirm Configuration
We confirm the model, functions, installation conditions, technical details and quotation before the project moves forward.

4️⃣ Delivery & Follow-Up
We coordinate delivery, technical communication and after-sales follow-up for your project.

Clear. Practical. Reliable.

Frequently Asked Questions

What types of pipes mill do you supply?

We are a professional manufacturer and we could supply customized mill for ERW pipes and full-range OCTG pipes to meet your request,which include Entry Section,Forming&Sizing,Solid State HF Welder,Straightening Machine,Cold Flying Saw,End Facing Machine,Hydro-tester,UT Flaw Detection Machine,Threading Machine,Bucking Machine and Pipes Packing Machine.

What is your MOQ for Mill orders?

MOQ is flexible for us and one set is feasible.Of course our team also could supply you a complete solution according to your request.

Which standards do your pipe mill machines follow?

All kinds of our equipment are designed for producing pipes meeting API 5CT, API 5L, ASTM, EN, ISO and GB standards, suitable for oil & gas, pipeline, structural and industrial pipe applications.

Can you provide turn key ERW & OCTG pipe mill projects?

Yes. We offer full turn key solutions including process design, equipment manufacturing, installation guidance, commissioning, operator training and after sales service.

Do your machines support high grade OCTG production such as N80, L80, P110?

Absolutely. Our heat treatment and forming systems are specially engineered for high strength steel grades required for deep well oil and gas OCTG pipes.

What payment terms do you accept?

T/T, L/C at sight are available. Flexible payment terms can be discussed for large scale turn key projects.

What is your warranty period?

We provide 12 month warranty for core components from the date of shipment, with lifelong technical consultation and spare part supply service.