Automatic Digital Tension Controller with A/B Shaft Switching
High-precision closed-loop tension control solution for unwinding, rewinding, synchronous control and continuous roll material production lines.
This automatic digital tension controller is designed for industrial web material production lines that require stable, accurate and responsive tension control. With built-in PID calculation, closed-loop tension feedback, multi-actuator output compatibility, and intelligent A/B shaft switching, it helps improve winding quality, reduce tension fluctuation, and support efficient non-stop roll changing in high-speed production environments.
Built-in PID calculation works with a tension detector to form a closed-loop control system, delivering fast response, stable tension and low fluctuation.
Supports 0–24VDC output for magnetic powder clutch or brake, and 0–10V output for inverter or servo motor control.
Supports one-key or external port switching between A/B shafts, with new roll preset, cutting torque and preset timer functions for smoother roll change.
Manual mode directly adjusts output percentage, while automatic mode uses the current actual value as the target tension, enabling smooth switching without production disturbance.
- Full digital high-precision closed-loop tension control.
- Stable tension output with fast response and small fluctuation.
- Compatible with magnetic powder clutch, magnetic powder brake, inverter and servo motor.
- A/B shaft switching supports smooth non-stop roll changing.
- Automatic and manual modes switch smoothly without tension shock.
- Printing and packaging roll material production lines.
- Paper making, paper converting and rewinding systems.
- Wire, cable, rubber and plastic production equipment.
- Electronics, battery and composite material processing lines.
- Textile dyeing, finishing and continuous web control systems.
| Product Category | Digital Tension Controller / Web Tension Control System |
|---|---|
| Product Name | Automatic Digital Tension Controller with A/B Shaft Switching |
| Control Type | Full Digital Closed-Loop PID Tension Control |
| Output for Clutch / Brake | 0–24VDC |
| Output for Inverter / Servo | 0–10V |
| Roll Switching | A/B Shaft One-Key Switching or External Port Switching |
| Roll Change Functions | New Roll Preset, Cutting Torque and Preset Timer |
| Operation Mode | Automatic / Manual Seamless Switching |
| Suitable Process | Unwinding, Rewinding, Synchronous Control and Roll-to-Roll Web Processing |
For standard models, the minimum order quantity is 1 piece. For OEM branding customization, the MOQ is 50 pieces.
Yes, sample orders are welcome for quality testing. Samples can be shipped by DHL or FedEx within 7 days.
We provide a 12-month warranty. If any component fails due to quality problems, replacement parts will be provided free of charge.
Yes, online video guidance is available for parameter setting and product operation support.
With digital closed-loop control, flexible actuator compatibility and intelligent A/B shaft switching, this controller provides a reliable solution for roll material tension control in high-speed and precision production lines.
Common questions and troubleshooting guidance for SJ2300 tension controller operation, sensor calibration, automatic control, wiring, alarms and quick setup.
- Red: +5V
- Green: R+ / L+
- White: R- / L-
- Black: GND / Shield
- Complete the correct wiring.
- Without material, perform sensor zero adjustment.
- Enter the total measuring range and complete full-scale calibration.
- Set the start mode to F1 or pulse start.
- Stabilize the tension manually, then switch to automatic mode.
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