The D Type is a CAM BALANCER which is developed assuming to optionally installed to a standard SANDEX. CAM for a torque setoff is stored inside a box-shaped housing and this box-shaped housing can be installed freely to an input axis, just like the SANKYO reducer. There are 8 types of posture according with a main body posture.

This machine is considered to optionally installed to SANDEX for improvement of movement characteristics.