- In-house engineering and production
- Short lead times
- Worldwide delivery
- More than 20 years of experience
Why choose a BoltSafe sensor instead of a tension load cell?
BoltSafe load cells are more compact and less expensive than tension load cells that use strain gauges or another similar technology, like direct tension indicators.
The entire surface of the ring is used to measure the load, instead of just a few pressure points like strain gauges do.
Because calibration is done within the load cell, there is no calibration needed at the side of the readout equipment, not even when switching between readout methods.
BoltSafe load cells are able to withstand very low and high loads from 18 kN to 3000 kN and send out only digital signals.
Because the sensors meet the IP66 rating, they are dust free and water resistant.
We assure a maximum deviation of 1% of the full scale after factory calibration, since our load cells are drift free and have almost no creep effect.
To accumulate as many possible wishes and circumstances, we offer a variety of available readout methods.
Bolt load cells
BoltSafe bolt load sensors are specially designed to monitor the bolt load in bolted joints. Knowing this information enhances safety, makes joints more dependable and results in better control over bolted constructions.
Readout methods
BoltSafe bolt load cells can send their data to different readout methods. We offer the following: the Handheld Reader, Network with PDI, Network with PDI-NT, RS-232 and Analog Converter and the IoT-node.
Bolt load cells
BoltSafe bolt load sensors are specially designed to monitor the bolt load in bolted joints. Knowing this information enhances safety, makes joints more dependable and results in better control over bolted constructions.
Readout methods
BoltSafe bolt load cells can send their data to different readout methods. We offer the following: the Handheld Reader, Network with PDI, Network with PDI-NT, RS-232 and Analog Converter and the IoT-node.
What is a tension load cell?
A tension load cell is pulled apart, opposed to a compression load cell which is bent or compressed. Therefore, they measure a pulling force or tension. There are also load cells available that are able to measure compression as well as tension (compressive and tensile loads). Tension load cells are transducers that convert force or weight into an electrical signal that can be measured and standardized. The internal workings of the load cells differ based on the chosen type and technology, but strain gauge technology is mostly used. The electrical signal changes proportionally with the increasing tension on the load cell. Measuring this tension is done very accurately and is usually caused by the deformations that occur on the load cell when the load is applied. These deformations are picked up by the chosen type of technology in the sensor, which generates a proportional change in the electrical signal as the load is being applied. Measuring tension is very useful in many industries, as long as there is a demand for accurately knowing the weight or tension.
Contact us for more information or to order our load cells
BoltSafe’s tension load cell equivalent
BoltSafe offers load cells that are specifically designed for measuring and monitoring bolt load, as well during assembly as over time. They can also be used as a weighing device, for example in temporary construction and for Structural Health Monitoring. Here they monitor the load in the construction to make sure that the construction doesn’t collapse. Precisely knowing the bolt load enhances safety and control in bolted constructions and makes joints more dependable. Most load cells, and therefore also tension load cells, use strain gauges, but this is not the only available load cell technology. BoltSafe uses magnetoelastic technology, which measures the changes in the magnetic field.
When a BoltSafe load cell is used for measuring bolt load, it is used as a washer and placed on the non-driven side of a bolted connection, preferably under a nut. Tightening the bolt and applying force results in minor deformations of the stainless steel washer. These deformations cause changes in the electrical resistance, which can then be measured, just like a tension load cell. This is the data we use to determine the bolt load precisely at any given moment.
Are you interested in using or distributing our bolt load cells? Please contact us through info@boltsafe.com or call us at +31246790797. If you have any questions about the functionality, usability or applicability of our products, do not hesitate to contact us.