Tension Load Cells

Tension 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.

 

 

 

Model DCL10

Model DCL10

Versatile tension Link load cell. 1,000 kg - 120,000 kg

Model DLWS

Model DLWS

Crane overload limiting clamp-on load cell.

CLP Series

CLP Series

Versatile load measuring pin. 1K lb - 1,000K lb

Model WL-CTL2

Model WL-CTL2

Wireless tension link load cell / crane scale. 10K lb - 150K lb.

Model DCL12

Model DCL12

Low-profile dynamometer tension link load cell. 0.5 t - 100 t.

Model STLC

Model STLC

Load shackle load cell. 1 t - 400 t.

Model WL-STLC

Model WL-STLC

Wireless load shackle. 12 t - 400 t.

Model XTS4

Model XTS4

Versatile alloy steel s-type load cell. Low to medium capacity.

Model SRP4

Model SRP4

Universal pancake load cell. 100 lb - 50K lb.

Model HRS

Model HRS

Hermetically sealed, stainless steel, submersible s-type load cell.

Model HTC

Model HTC

Stainless steel dual stud mount load cell.

Model RELC-T

Model RELC-T

High capacity rod-end load cell.

Model RSTC

Model RSTC

Universal miniature load cell.

Model DSLC

Model DSLC

Hermetically sealed, stainless steel, submersible load cell

Model LPSW-B

Model LPSW-B

Universal shear web load cell. 300 lb - 100K lb.

Model XLS2-HSS

Model XLS2-HSS

Hermetically sealed, stainless steel, s-type load cell.

Model UCLD

Model UCLD

Hermetically sealed, stainless steel, canister load cell.

Model JRS1

Model JRS1

Miniature s-type load cell.

Model JQRT

Model JQRT

S-type load cell.

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.

How Tension Load Cells Work:

In a tension load cell, the strain gauges are set up parallel with the loading axis. When tension force is applied, the wire component of the strain gauge gets longer and thinner, thereby increasing its electrical resistance. This change in resistance is directly proportional to the amount of force applied, thereby making it possible to determine the amount of force applied. 

 

For more information on how tension load cells work, please read our white paper titled Load Cell and Strain Gauge Basics

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