Automatic chain and belt tensioners

AMS offers innovative solutions not only for chain and belt guides or slide profiles, but also for your drive and conveyor systems. Our fully automatic chain and belt tensioners SPANN-BOX® and SPANN-BOY®, patented worldwide, ensure that your conveyor systems will always run quietly. In this area, too, you can rely on our long-term know-how of individual, non-standard solutions. In addition to a wide variety of standard parts to help solve your tensioning problems, we can also offer you alternatives specially designed to fit your needs.