The αSTEP DGII Series uses a highly rigid hollow rotary table with the absolute mechanical encoder AZ series closed loop motor and driver package allowing for highly accurate positioning of larger inertia loads.
The DH Series is a line of products that combine a hollow flange with 5-phase stepper motor for applications that are sensitive to vibration or noise. It retains the ease of use of an open loop stepper motor while also allowing for precise positioning in a compact and lightweight design.