Motor Sizing
Customer Service


We're here to help.

Live chat:

M - F 8:30 am EST to 5:00 pm PST
(use Live Chat button at top of the page)

On the phone:

M - F 8:30 am EST to 5:00 pm PST

U.S.A. Customers:

Customer Service

Technical Support
1-800-GO-VEXTA (468-3982)

International Customers:

For English or Español
+1-847-871-5931 or

For Japanese
Japanese Support
1-800-746-6872 or


By e-mail:

For English or Español
Click here to e-mail us

For Japanese
Japanese Support

Hollow Rotary Actuators

Hollow Rotary Actuators DG II Series

Using the highly efficient and energy saving AR Series as the motor, high accuracy positioning is possible. Equipment tables and arms can be installed directly on the output table. In addition, the large-diameter hollow output table makes simple wiring and piping possible.

  • Large-Diameter Hollow Output Table
  • High Torque and High Rigidity
  • Direct Coupling Possible
  • High Accuracy and Quick Positioning


Driver Options
Built-in Controller (Stored Data) Type
  • Modbus (RTU) / RS-485
  • Up to 31 units daisy chained
  • 24 VDC, Single-Phase 100-120 or 200-240 VAC
Starting from
Available to Ship:
5 Business Days
Pulse Input Type
  • 24 VDC, Single-Phase 100-115, 200-230 VAC or Three-Phase 200-230 VAC
  • Controller required
Starting from
Available to Ship:
5 Business Days


Application Examples

Applications subject to changing load inertia

Load Inertia Application

Applications where a moment load is applied

Moment Load Application

Optical applications using the hollow hole

Optical Application

High accuracy positioning

Positioning Application

High accuracy positioning applications using the hollow hole

Positioning Application

Air absorption applications using the hollow hole

Air Absorption Application


Hollow Rotary Actuators

The gear-reduction mechanism employs precision gears along with a proprietary adjustment mechanism that eliminates backlash. The repetitive positioning accuracy from a single direction is ±15 sec., while lost monition in a positioning operation from two directions is 2 arc minutes. These characteristics make the DGII series the ideal choice for applications in which accurate positioning is a must.

Accurate Positioning


© 2016 ORIENTAL MOTOR U.S.A. CORP. All Rights Reserved.
Follow Us:
Follow Us on FacebookFollow us on TwitterFollow Us on LinkedInFollow Us on Google+Follow us on YouTube