The MURTFELDT chain tensioning system, based on the Spann-Box® size 1 or size 2, can easily be integrated into existing systems. With two tensioning points, it ensures reliable and even chain tension, reduces wear, compensates for chain elongation, and extends the lifespan of the drive system. Robust and low-maintenance – ideal for large chain pitches.

Installation is simple and efficient. The standard profile width is 55 mm, and additional sizes or custom designs can be considered upon request.