ALF255 Miniature load cell

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Key features

• Measuring ranges from 100 N to 6.4 kN
• Tension, compression or bidirectional
• Compact Ø30 mm stainless steel body
• Nominal output signal of 1.6 mV/V
• Repeatability of ±0.1% RL
• IP65 environmental sealing

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Compact miniature load cell for confined spaces

The ALF255 miniature load cell is designed for reliable force measurement in applications with limited installation space. Its compact cylindrical construction has a diameter of approximately 30 mm, making it suitable for integration into OEM equipment, industrial machinery and compact test systems.

The ALF255 is available as a load button version for compression-only measurement or as a threaded stud version for tension, compression or bidirectional force measurement. This flexibility allows the load cell to be adapted to a wide range of industrial, scientific and engineering applications.

Measuring ranges and performance

The ALF255 is available with rated loads of:

• 100 N
• 200 N
• 400 N
• 800 N
• 1.6 kN
• 3.2 kN
• 6.4 kN

The load cell offers a terminal non-linearity of ±0.5% of rated load, hysteresis of ±0.5% RL and repeatability of ±0.1% RL. Its nominal output is 1.6 mV/V, with a rationalised output of 1.0 mV/V ±0.5% RL available for single-direction calibrations.

Compression, tension and bidirectional measurement

The load button version is intended for compression measurement. The stud version is available for compression, tension or bidirectional measurement.

In bidirectional versions, the output signal may differ slightly between tension and compression. Standard bidirectional load cells are therefore calibrated in both directions, with the output for each direction stated on the test or calibration certificate.

Suitable for industrial and test applications

The ALF255 is suitable for monitoring critical force parameters in industrial processes. Its compact size and versatile configuration also make it suitable for scientific and engineering test work in mobile, workshop, static and dynamic applications.

The stainless-steel construction and IP65 protection rating support reliable operation in demanding industrial environments. For optimum performance, the force must be applied directly through the central loading axis.

Typical applications

• OEM machinery
• Industrial process control
• Force monitoring systems
• Assembly and production equipment
• Laboratory testing
• Scientific research
• Engineering test systems
• Material testing
• Mobile measurement equipment
• Static force testing
• Dynamic force testing
• Tension and compression testing

Advantages of the ALF255

The ALF255 combines a compact design with a broad force range extending up to 6.4 kN. This makes it especially useful where a relatively high measuring capacity is required within a restricted installation envelope.

Its availability in load button and threaded stud versions gives engineers the flexibility to select the correct mechanical configuration for compression-only, tension-only or bidirectional applications.

The robust stainless-steel body, IP65 sealing and traceable calibration options make the ALF255 a practical solution for both industrial installations and precision test environments.

Other important features

• Micro load cell design
• Stainless-steel construction
• Safe overload up to 150% RL
• Ultimate overload up to 200% RL
• Compensated temperature range from -10°C to +50°C
• Operating temperature range from -10°C to +80°C
• Recommended 10 VDC excitation
• 350 Ω bridge resistance
• 2 m screened PVC cable
• Rationalised output available
• Multiple ordering configurations

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