Loadcell range is introduced by Puretronics for measuring tension of the product online. Measurement of the tension value of all materials including paper, cardboard, plastic film, foil, rubber and wire. Precision measurements of web tension is essential to ensure consistent product quality and to maximize productivity. Different models are available to meet the requirement like Flat type, Round type and Round Hollow type.
Web Tension Load Cell
Enhance accuracy and efficiency in the metal industry with Puretronics' Web Tension Load Cell For Metal Industry. Our advanced technology provides precise force measurement, ensuring optimal performance in metal processing applications. Trust Puretronics for reliable, high-performance load cells designed to meet the stringent demands of the metal industry. Elevate your metal processing capabilities with Puretronics, setting new standards for precision and quality assurance.
Importance of Loadcell
Precious measurement of web tension is essential to ensure consistent product quality and maximize productivity. Puretronics presents loadcells for various automation applications to cover most of automation in converting and process machines. Measurement of tension value of all materials including paper, cardboard, films, foils, rubber, sheet metal, fabric, metal wire and can be installed in any zone of a web production process.
Strain Gauge Technology
Wheatstone bridge illustrates the concept of a difference measurement, which is extremely accurate. The amplifier provides a stable excitation voltage of 10VDC to the force sensor. When load is applied the strain gauge is either elongated or compressed. This change in length leads to a change of overall resistance of the circuit. These changes are been calculated and readings are been displayed.
- Guide for Loadcell Section
- Features
- Technical Specification
- Accessory
Either roller bearing or loadcell bearing should be used and the other bearing should be locked.For accurate measurement and more precise output roller bearing should have a lock and it is recommended that roller bearing should be locked.
It is important to select correct loadcell rating for an application. This can be determined by calculating the net force by choosing the wrap configuration diagram shown.
The selected load rating may be 20% less than the computed Net Force. The actual force on the transducer will read 125% of the load rating before hitting the stops. This is acceptable because the Net Force formula contains an oversizing factor of 2, which means that the actual force exerted on the transducer will not exceed its rating. Sometimes, a roll is so heavy that its weight uses up most of the operating range of the transducer.
At this condition since the adjustment range of the electronic circuit has been exceeded possible to adjust the tension indicating meter to read zero when tension is zero.
To rectify if the load is too heavy to adjust the tension meter at zero
a. Compare the laod rating along with the effective weight of the roll
b. If Wcos(A) is more than 95% of the load rating chosen
If this case changes to be made to reduce Wcos(A) less than 95% of load rating
- Reduce the transducer roll weight
- Increase angle (A)
- Use the next higher load rating (This is the least desirable choice because it reduces transducer signal output)
- Ruggedly constructed for long life and dependability
- Maximum mechanical overload protection for upto 10x time
- Full whear stone bridge designed for measurement accuracy and low temprature drift
- Certification CE, ATEX (Explosion proof)
- Easy installations
| MODEL | AR-85 Series | AR-118 Series | AR-125 Series | AR-ST Series |
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| Strain guage resistance | 350 Ω | |||
| Excitation voltage | 10 VDC | |||
| Mating electrical connector | Military grade L Type / 90° Type Standard Type | |||
| Working temperature | 0° to 50° C | |||
| Sensitivity | 2mV/V | |||
| Certification |  |
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| Mounting | Flange Mount | Flange Mount | Flange mount with pilot hole | Pillow Block |
| Capacity | 5kg, 10kg, 20kg, 50kg, 100kg, 200kg | 50kg, 100kg, 200kg, 500kg | 50kg, 100kg, 200kg, 500kg | 100kg, 200kg, 500kg, 2000kg |
| Shaft OD | 17mm | 25mm | 25mm | 35mm / 40mm |
| Signal Output | 20mV / 10V | 20mV / 10V | 20mV / 10V | 20mV / 10V |
| Overall Protection | Up to 300% of full scale value | Up to 300% of full scale value | Up to 300% of full scale value | Up to 300% of full scale value |
| Small Round Bracket |
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| Big Round Bracket |
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| Cable |
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| L Type Bracket AR-85 |
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| Bearing Block |
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