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Tension Load Cells

S-type load cellsTension load cells are categorized by the way the sensor deflects when experiencing strain.  A tension load cell is pulled apart, rather than pushed.  Imagine the force on a tow rope.  This rope is experiencing a tension force.  Tension Links, S-Type load cells, Crane Scales, Canisters, and Pancakes are examples of load cell types that can measure tension forces.  No matter how specific or unique your application is, Load Cell Central can provide stock items off the shelf, or custom load cells to meet your needs.

 

 

Tension Load Cells and Compression/Tension Load Cells

Tension load cells are used commonly in overhead crane applications.  We provide clamp sensors, like our DLWS, for the dead-end of crane wire ropes in order to measure the load without impacting the amount of headroom a crane operator has to work with.  These systems are often used to a limiter switch for shutting down a crane that is experiencing an overload.  This is done by using a small load cell controller that has programmable setpoints.  These devices switch on and off a small voltage that is typically used as logic for a larger relay capable of powering down the entire crane.

We also offer tension link load cells, like our CTL2 or DCL10, for use above the hook of the crane.  These applications are simpler and easier to install, but do result in a loss of headroom between 12" to a few feet.  Some of these applications use wireless technology to get the information to the crane operators, workers on the ground, or to one of our many wireless receivers capable of providing logging, analog output, serial output, printing, or relay outputs.

Load Shackles are another valid solution for some applications where a dead end is not available and where headroom is of the utmost importance.  These function similarly to a tension link load cell, but save headroom at the cost of accuracy.

The simplest solution is to use a crane scale.  Crane scales have started to include more features than in previous years, but they traditionally are a simple S-Type or Double Ended Shear Beam, inside a housing with a display attached.  They allow calibration and zeroing like other indicators.  Some include wireless technology and removable batteries.

 Tension load cells are also used for material testing, vessel weighing, and safety applications like supporting platforms for bridge painting.

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