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What is a pancake load cell (aka shear web load cell)?

A pancake load cell features a low-profile, disk-shaped body with a central threaded hole for applying and measuring axial forces. This compact configuration is designed for applications where installation height is restricted while maintaining high structural stiffness and reliable force measurement. The sensing element is typically equipped with strain gauges arranged in a full Wheatstone bridge, converting small elastic deformation into an electrical output proportional to the applied load. Its robust construction also provides good resistance to unwanted bending moments, side loads, and other external forces that may occur during operation.

The central mounting thread allows different mechanical accessories, such as threaded rods, eye bolts, load buttons, and other fixtures, to be attached according to the application. The sensor can be secured to a flat, rigid mounting surface using threaded or countersunk holes around the housing. This configuration simplifies mechanical integration and makes the sensor suitable for inline force measurement, compression testing, weighing equipment, and industrial machinery. Depending on the mechanical arrangement, a shear web load cell can be adapted for applications involving tensile, compressive, or cyclic loading.

The low-profile structure makes these sensors particularly useful in systems where conventional load cells would require excessive installation space. Typical applications include tank and hopper weighing, tablet compression testing, injection molding clamping force measurement, hydraulic presses, structural testing, center-of-gravity measurement systems, and automated production equipment. A threaded force sensor can also be integrated into mechanical test fixtures where direct axial loading and convenient attachment are required.

LCS offers strain gauge-based models with capacities ranging from 5 kg to 100 ton (50 N to 1000 kN). Aluminum, alloy steel, and stainless steel constructions are available to meet different requirements for weight, strength, corrosion resistance, and operating conditions. As a tension compression load cell, selected configurations can measure forces in both directions for bidirectional force testing and monitoring.

In addition to standard models, LCS provides customized designs for OEM and specialized applications. Custom options include rated capacity, dimensions, thread specifications, mounting patterns, materials, cable configuration, and electrical output, enabling reliable low-profile force measurement solutions for demanding applications.