A compression-only load cell is designed specifically to measure only compression.

Most load cells work in both compression and tension to some degree. However, some load cells, by virtue of their physical construction, are better suited to either compression or tension.

Sometimes it is preferable to use a load cell that measures both compression and tension without enabling its tension measuring capability. Rather than design a load cell that measures only compression, a load cell capable of measuring compression and tension can be shipped with calibration carried out only for compression. This type of load cell might be considered a compression-only load cell, although it is technically a compression and tension load cell being used only for compression. Compression-only load cells are usually fitted with a load button to minimize side loading.

The physical design of the load cell is typically better suited for either compression or tension. Compression-only load cells tend to have a high diameter to height ratio. Tension-only load cells, on the other hand, tend to have a high height to diameter ratio.

When a compression and tension load cell is used only for compression, calibration is provided only for compression loading. It is more expensive to provide calibration in both directions for a load cell. It is less expensive, on the other hand, to provide calibration in just one direction (tension only or compression only).

It is also important to consider which physical attachments will come into play with a load cell’s application. Some load cells will be better suited for specific attachments.