What is the first specification to confirm?
Confirm the required tension range and whether the machine needs closed-loop feedback.
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How to Choose a Tension Controller
Controller selection starts with material behavior, tension range, machine zone, and required feedback method.
Selection checklist
- Define the control zone: unwind, infeed, process, or rewind.
- Confirm material type, width, thickness, and sensitivity.
- Estimate minimum and maximum operating tension.
- Choose feedback: load cell, dancer, diameter compensation, or manual adjustment.
- Confirm actuator type: brake, clutch, motor drive, or amplifier output.
When to choose automatic control
Automatic closed-loop control is recommended for high-speed lines, sensitive materials, and applications where repeatable roll quality matters.
Related KRD products
FAQ
Can one controller handle multiple materials?
Some controllers support stored parameter groups, which helps when switching materials.
Do I need an amplifier?
That depends on the sensor signal and actuator type. Some systems require a dedicated amplifier.
Contact KRD Automation for a customized solution
Send your application details and we will help identify the right controller.