Krafttester

Krafttester, or force testers, are instruments designed to measure mechanical force applied to an object. They range from small handheld gauges that display force in newtons to large universal testing machines capable of applying tensile, compressive, or bending loads. Most modern devices convert the applied force into an electrical signal via a load cell or strain gauge and present a reading on a digital display or computer interface.

Common types include manual force gauges (spring or digital), digital force gauges with transducers, and universal testing machines that provide controlled crosshead motion and precise loading rates. Some models focus on static force measurement, while others are equipped for dynamic or cyclic loading. Torque testers are also used to measure rotational force in fasteners and assemblies. The choice of instrument depends on the required range, accuracy, speed, and environmental conditions.

Applications for krafttester span many sectors. In manufacturing and quality control, they verify product strength, grip force, and assembly integrity. In materials science, they assess tensile, compression, shear, and bending properties of polymers, metals, and composites. In packaging, they test paper and film strength, seal integrity, and puncture resistance. In biomechanics and medical research, force testers measure muscle strength and tactile responses. In robotics and automotive industries, they help evaluate actuation forces and component durability.

Calibration and traceability are essential for credibility. Krafttester measurements are typically calibrated against national or international standards, with documented accuracy and uncertainty. Standards from ISO and ASTM bodies govern force measurement, testing machine calibration, and data reporting to ensure consistent results across laboratories and industries.