- Core Chucks
- Core Shafts
- Safety Chucks
- Roll Stands and Processing Modules
- Brakes / Brake Pads
- Core Cutters
- Reel Spools / Reel Spool Shafts
- Slitting Systems / Knife Holders / Slitting Accessories
- Material Handling
- Core Plugs
- Web Guides
- Web Tension Control Systems
- Rotary Unions
Web Tension Control - Closed or Open Loop Configurations
The Double E Tension controller is a DIN rail mountable controller that is configurable for multiple uses. The unit can be used stand-alone with color TP HMI or integrated into the user's logic system.
Open Loop Torque Controller
The Double E controller uses a distance measurement sensor to monitor roll diameter as the roll unwinds. The controller compares values registered by the diameter sensor with set values then signals the brake or unwind drive to adjust accordingly.
Closed Loop Unwind Controller
The controller uses a dancer roll system or load cells to directly sense web activity. This signal is then compared to a setpoint, and through a PID loop, provides real time feedback to an unwind brake or drive to correct for any variations in tension.
Closed Loop Unwind Controller with Inertia Compensation
The controller operates as described above in closed loop mode, but also uses a diameter input to measure the diameter (and effectively the mass) of the unwinding roll. The roll size value is used to adapt the PID loop as well as the output signal when the roll is accelerating or decelerating for optimal system response at any roll size.
Intermediate Tension Zone Controller
The controller is connected to load cells or a dancer in the middle of a web process between driven nip or pull rolls. The controller PID output adjusts the speed difference between the two drives and is either increased or decreased to correct for variations in tension.
- One controller style for all applications
- Easy operator interface color touch screen HMI
- Simple calibration
- Optional wired integrated system cabinet
- Measured tension output signal for secondary display
- Automatic/Stop mode through remote switch
- Optional remote tension setpoint through analog input
- Selectable analog inputs (mV load cells, 0-10V, 4-20mA)
- Selectable analog outputs (0-10V, 4-20mA)
- RS232 Modbus serial communication
- Can be used with Double E load cells or existing load cells
Downloadable PDF brochure of the Double E Tension controller outlining the features, benefits and technical information related to using the unit.
Ultrasonic Diameter Sensor
Downloadable PDF brochure of the Double E Ultrasonic Diameter Sensor outlining the features, benefits and technical information related to using the unit.
Downloadable PDF brochure of the Double E Load Cells (live & dead shaft models) outlining the features, benefits and technical information related to using the units.
Load Cell Amplifier
Downloadable PDF brochure of the Double E Load Cell Amplifier outlining the features, benefits and technical information related to using the unit.
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Web Tension Control Overview
Various web tension control systems available using load cells, dancers, ultrasonic sensors, and amplifiers.
Double E load cells are designed using a full Wheatstone bridge strain gage mounted to a beam supporting the load cell bearing cup.
Load Cell Amplifiers
Load Cell Amplifiers from Double E for Web Tension Control Systems. Double E offers a variety of web tension control products including controllers, load cells, load cell amplifiers, sensors, etc.
Ultrasonic Diameter Sensors
Ultrasonic DIameter Sensors for the safe and easy monitoring of web material rolls.
Pneumatic Brakes for Unwind Stands
Double E EE250 pneumatic brake products for any roll stand - longest pad life, no squealing.
Electromagnetic Powder Brakes for Unwind Stands
Powder brakes for low-tension unwind applications - ideal in clean-room converting environments.
Digital Slitter Positioning System
Digitally assisted slitter positioning system facilitates accurate placement of slitting groups in web converting applications.
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