TENSION LOAD CELLS
SENSOREX
Applied on rollers to precisely detect the tension of a web, the Sensorex load cells are designed to be used in closed loop systems
TENSION LOAD CELLS
Used in closed-loop regulation systems to detect the web tension and send the input signal to the control panel
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Sensorex load cells provide the most reliable performance, maximum accuracy and sensibility.
A wide range of load cells can be adapted to any application, all tested, calibrated, and certified.
Load cells detect the web tension and send an input signal to the control panel, which compares the web tension detected with the ‘set point’ and send the input to the brake (or motor).
In case of pneumatic brake, an electropneumatic converter is necessary to convert the electronic signal into compressed air signal to the brake. Finally, the brake adjusts the torque (or rpm if a motor) to obtain the web tension required.
Sensorex load cells are also available with integrated amplifier, used to obtain a greater stability of the signal or for cable length >5m.
Why SENSOREX
load cells provide the most reliable performance, maximum accuracy and sensibility
Extreme precision and reliability
Simple to use and easy to mount
Compact design to fit narrow spaces
Overload protection
Load cells
WITH Sensorex SAY STOP TO
Sensorex
LOAD CELL SELECTION GUIDE
MODEL
Select the load cell type according to the specifications of your machine.
Flange load cell or flange load cell with clearance hole are available.
LOAD CAPACITY
Select the load that the cell should support according to the web tension and the roll weight.
HOLE DIAMETER
Select the cell’s hole diameter according to the pilot of the roll.
LOAD CAPACITY CALCULATION
A configuration with horizontal resultant isn’t affected by the roll weight. It offers a better precision when the web tension is low.
F = horizontal DIRECTION
A configuration with horizontal resultant isn’t affected by the roll weight. It offers a better precision when the web tension is low.
F = 2Tcosα
F = DOWNWARD DIRECTION
A configuration with downward resultant enhances the load on the cell due to the component of the roll weight. This component has to be canceled in the control panel settings.
F = 2Tcosα + Pcosβ
F = UPWARD DIRECTION
A configuration with upward resultant reduces the load on the cell due to the component of the roll weight. This component has to be canceled in the control panel settings.
F = 2Tcosα – Pcosβ
Sensorex models
Sensorex load cells
SX.CF
Flange load cells
- Available in different models with loads from 50 to 4000 N
- Shaft diameter from 15 up to 35 mm
- Input signal maximum 18 VDC / Output signal 1,8 mV
SX-CF load cells are available also with integrated amplifier – to be used to obtain a greater stability of the signal or for cable length > 5 meters.
- Input signal 12 VDC / Output signal 4 ÷ 20mA
| load [N] | Ø bearings [mm] | |
| CX-CF.85 | 50 – 1000 | 15-35 |
| CX-CF.120 | 250-4000 | 15-35 |
| CX-CF.125 | 500 – 2500 | – |
Sensorex load cells
SX-CH
Flange load cells with clearance hole
Compact design, ideal to work in environments where space is limited and sensor rollers are applied with cross shafts.
- Available with loads from 150 to 3000 N
- Shaft diameter from 15 up to 35 mm
- Input signal maximum 18 VDC / Output signal 1,8 mV
SX-CH load cells are available also with integrated amplifier to obtain a greater stability of the signal or for cable length > 5 meters.
- Input signal 12 VDC / Output signal 4 ÷ 20mA
| load [N] | Ø bearings [mm] | |
| CX-CH.105 | 150 – 1000 | 15-17 |
| CX-CF.125 | 150- 1500 | 15-25 |
| CX-CF.175 | 300 – 3000 | 15-35 |
Sensorex load cells
SX.CB
Base style load cells
The CB base load cells offer the ideal solution for detecting elevate laminate tension, and for applications where foot fixing is needed. CB series load cells guarantees high resistance to vibrations and overloads, and also reliability, precision and long life span. Installation requires foot bearing support and, related with the load to bear, CB load cells are supplied in aluminium or steel.
CB cells are applied in particular on paper mill, calendering and rolling machines, but also on plants in which laminate must be treated with extreme care and attention.
Available with loads from 150 to 30000 N.
Sensorex load cells
SX.CCS
Cantilever load cells with sensor
The sensor roller of CCS series is recommended for the web tension reading during the web processing, in cantilever applications. The CCS sensor roller has a high precision in detecting the web tension thanks to the two sensors with double metal foil. This allows a great accuracy in load reading and the position of the material on the roller doesn’t affect the reading.
The roller is fixed quickly and easily from one side only and the connector could be installed both inside or outside the machine frame.
Available with loads from 50 to 500 N.
ANCILLARY EQUIPMENT
RESET
AMPLIFIER
Digital measuring amplifier for connecting two load cells with strain gauge bridge
Its compact size, user-friendliness and easy installation allow the Reset amplifier to be extremely flexible and precise at the same time, with a high long-term stability and an excellent linearity.
It is equipped with a 24-bit acquisition circuit with programmable gain, of 3 analog outputs to a control unit and a digital input for a reset of the outputs from remote.
In the advanced mode, it is possible to program all operational parameters of the units, by the keyboard and the display: zero, gain (full scale in engineering unit), pass-band of the filter on the signal etc.; in normal operation, the display visualizes the tension measurement, calculated according to the current parameters.
- 24-bit Microprocessor
- Assembling on DIN guide step of 23 mm
- 4-digit display
- Also available with RS485, CANopen or Profibus DPV1 DS404 interfaces
| interface code | description | |
| ADS – R | – | standard solution |
| ADS – R | D | with RS485 interface |
| ADS – R | P | with Profibus interface (DPv1) |
| ADS – R | P | with CANopen interface (DS4D4) |
