Oriental Motor DG Series Hollow Rotary Actuators: Precision Indexing Explained
By AB Automation Team1 min read
A hollow rotary actuator combines a motor, reduction gear and output table in one unit. The Oriental Motor DG series adds a built-in battery-free absolute sensor, non-backlash gearing and a cross-roller bearing, giving precise, rigid rotation with a hollow centre.
Key features
- High rigidity and non-backlash positioning
- Large-diameter hollow table for wiring and piping
- Direct coupling of the load with high permissible load capacity
- Battery-free absolute sensor
- Built-in controller type available
Why the hollow design matters
Cables, air lines, vacuum tubes or even optical paths can pass through the centre. That removes external belts, couplings and brackets, making machines smaller and more reliable.
Applications
- Indexing and rotary tables in assembly and packaging machines
- Inspection stations using cameras above a rotating stage, common in electronics and pharma
- Diamond and jewellery positioning and inspection fixtures
- Robot wrist and turning units for handling
- Dispensing and printing that need repeatable angles
Benefits at a glance
- Fewer parts and simpler design
- Repeatable accuracy with no gear backlash
- Quick restart because position is retained at power off
The DG series pairs naturally with the AZ closed-loop platform. Learn more on our Oriental Motor page or contact our team to size an actuator for your machine.
Need help with your automation project?
Talk to AB Automation’s engineers — authorised Mitsubishi Electric partner & Oriental Motor distributor.