Tensioning device is the whole conveying chain in the running process of always keep a relatively stable tension, and absorption and compensated, the conveying chain at work due to thermal expansion and contraction and deformation reasons of expansion amount.

There are two types tension devices:

Heavy vertical tension device:

Hammer tensioning device for tensioning force is relatively stable, wide range of application. Tensioning device is the whole chains keep a relatively stable tension in the operation process, also can absorb or compensate conveying chain in working process by the thermal expansion and contraction and deformation etc. causes the expansion amount.

Spring type tensioning device:

Spring tension structure is more compact, but because of its elastic force by the size and change, it is generally suitable for the short line, the temperature change is not big. Tensioning device is the whole chains keep a relatively stable tension in the operation process, also can absorb or compensate conveying chain in working process by the thermal expansion and contraction and deformation etc. causes the expansion amount.