Web Tension Control Systems

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Web Tension Control - Closed or Open Loop Configurations

Various web tension control systems available using controllers, load cells, dancers, ultrasonic sensors, and amplifiers.

Double E Company / Re logos

 

  • Closed Loop Web Tension Controllers
  • Open Loop Web Tension Controllers with Ultrasonic Sensors
  • Integrated Web Tension Control Systems
  • Load Cells
  • Amplifiers
  • Brakes
Closed Loop Web Tension Controllers

MW.90.10 / T.One Controllers

T-One web tension controller from the Double E CompanyT.1
Tension Controller

 

MW.90.10 web tension controller from the Double E Company

 

MW.90.10
Tension Controller

 

  • Three (3) P.I.D. settings for acceleration, running, and deceleration — controller maintains consistent tension relative to line speed; does not use an average value.
  • Digital input display and digital output scale to easily monitor the brake or drive being controlled.
  • Ten (10) programmable presets allow easy switching from one material to another.
  • Controller “remembers” optimal running parameters for each situation.
  • Operator-friendly and easy to interface with existing machine controls.
Open Loop Controllers / Ultrasonic Sensors

Tension controller from Double E

MW.60.01  / TS.3

  • The TS.3 sensor and MW.60.01 controller are parts of a user-friendly tension system that is easy to set up and use.
  • Digital set point adjustment with tapered tension standard.
  • Ten (10) programmable memories; digital input / output scale.
     

US.3 ultrasonic sensor for measuring roll diameter in open loop tension control systems

US.3 Sensor / Controller

  • Simple sensor with integrated web tension controller sends signals relative to roll diameter.

 

Integrated Web Tension Control Systems

Integrated systems package all electrical and pneumatic components in a single ready-to-mount, NEMA-style enclosure. Ideal for end users wishing to simplify installation.

Integrated tension control for pneumatic brakes

​EP.03

  • Quickly connects to pneumatic brakes.
  • Contains unwind controller, E/P converter, air pressure gages, and manual override dials.

Integrated tension control for powder brakes, with ultrasonic sensor

EL.05

  • Quickly connects to powder brakes.
  • For use with US.2 ultrasonic sensor.
  • Contains unwind controller/sensor, current regulator, 
    ampere meter, ​and potentiomete to adjust set point of the US sensor.
Load Cells

  • Various mounting styles including flange-mounted (CF series), foot-mounted (CB series), through-shaft (CK series), and cantilevered.
  • Full-bridge strain gages improve accuracy by allowing controller to average the input from both load cells. Also, if one load cell malfunctions, the tension control system can still work with an easy recalibration.
  • Integrated mechanical stop protects strain gage; 300% maximum overload.

 

CF.85 Flange Mount Load Cell

CF.85 Flange Mount Load Cell



CK.100 Through-Shaft Load CellCK.100 Through-Shaft Load Cell
 

 

CB.80 Foot-Mount Load Cell

CB.80 Foot-Mount Load Cell

  • The CB load cell handles extremely heavy rollers and high tensions. It is not a compressive load cell. Instead, it measures force tangent to the mounting surface so the weight of the roller does not register within the output scale. This design ensures accuracy even under severe conditions.
Amplifiers

Load cell signals should be amplified when the distance from the load cells to the controller is greater than 30 feet, or when signal compatibility with an existing PLC is required

Lybra model amplifier for tension control

Lybra

  • Digital calibration.
  • Compact size; mounts on a DIN rail.
  • Two (2) alarm thresholds.

Gemini model tension control amplifier

Gemini

  • Integrated with load cell or pendant style.
  • Minimizes disturbance.
Combiflex Pneumatic Brakes and Eleflex Powder Brakes

Combiflex pneumatic brakes

  • Patented turbine disc and internal fan for unparalleled heat dissipation.
  • Exceptional pad life.
  • No squealing.
  • Self-enclosed—safe without a cage.

Eleflex electromagnetic powder brakes

  • Patented turbine disc and internal fan for unparalleled heat dissipation.
  • Exceptional pad life.
  • No squealing.
  • Self-enclosed—safe without a cage.

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