New in the Shop: Clamping Systems with Limit and Inductive Switches


Our Spann-Box® with SenseGuard technology is now available for direct inquiry on our website. Maximise safety for chains, systems, and employees. Our team is happy to provide technical advice.

Published: December 2024 • Reading time: approx. 1 minute

Chain Tensioners with Limit and Inductive Switches from MURTFELDT for Maximum Operational Safety

Our intelligent chain tensioners provide reliable and precise tension monitoring in chain-guided systems. They detect deviations or disruptions in chain tension.

The MURTFELDT Spann-Box® is essential for the smooth operation of industrial systems and ensures optimal protection against damage and downtime in day-to-day operations.

Spann-Box® with Limit Switch

The Spann-Box® Size 1 with curved profile and position switch ensures precise tension monitoring and features a compact, robust design for reliable performance and long service life.

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Spann-Box® with Inductive Switch

The Spann-Box® Size 1 with inductive sensor provides precise, contactless position monitoring and is ideal for environments with high wear or contamination risk.

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The sealing material Murlock® is available to many industries such as the automotive and motorcycle industry, the aerospace industry, the sports equipment industry and many more.


The solution therefore consists of a material that is suitable for high pressures and high temperatures while remaining extremely dimensionally stable. At the same time, it must have excellent chemical resistance and show sufficient elasticity at the specified operating temperatures.


This is where the new product Murlock® mentioned at the beginning comes into play. Thanks to its temperature resistance above 200° degrees and pressure resistance up to 100 bar and more, it is suitable for sealing HP-RTM tools as well as for use in resin injection processes (RTM). In addition, it can of course also be used as a seal in injection molding processes for particularly low-viscosity materials.

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