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Rotary Actuators

Hollow Rotary Actuators

AlphaStep Hollow Rotary Actuators

The DGII Series is a line of of products that combine a high rigidity hollow rotary table with an AlphaStep closed loop stepper motor and driver package. It retains the ease of use of a stepper motor, while also allowing for highly accurate positioning of large inertia loads.

  • Integrated actuator and stepper motor makes design easier
  • Large-diameter hollow output table
  • Pulse Input, Pulse Input with RS-485 Communications and Built-in Controller (Network) type drivers
  • AC or DC Input

Controllers / Network Gateways

Controllers / Network Gateways

Controllers and Network Gateways for use with motion control systems.

  • Controllers for use with Pulse Input Drivers
  • Network Converters/Gateways (RS-485 Communication)
    • EtherCat
    • CC-Link
    • MECHATROLINK

EtherCatCC-LinkMECHATROLINK


 


Rotary Actuators

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 motion 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.

Hollow Rotary Actuator

Application Examples

Applications subject to changing load inertia

Applications where a moment load is applied

Optical applications using the hollow hole

HIgh Load Inertia

High Moment Load

Optical Through Hole

High accuracy positioning applications

High accuracy positioning applications using the hollow hole

Air absorption applications using the hollow hole

High Accuracy Positioning

Positioning

Air Absorption


 Hybrid Control System

AlphaStep products are stepper motor based hybrid motors with a unique hybrid control system combining the benefits of "open loop control" and "closed loop control".

The position of the motor is always monitored, and then the driver automatically switches between 2 types of control depending on the situation.

Normally Operates in Open Loop Control for the Same Ease of Use as a Stepper Motor

Open Loop Control

High Response

By utilizing the high responsiveness of the stepper motor, moving a short distance for a short time is possible. The motors can execute commands without lag.

High Response

Holding the Stop Position without Hunting

During positioning, the motor stops with its own holding force without hunting. Because of this, it is ideal for applications where the low rigidity of the mechanism requires absence of vibration upon stopping.

Tuning-Free

Because it is normally operated with open loop control, positioning is still possible without gain adjustment even when the load fluctuates due to the use of a belt mechanism, cam or chain drive, etc.

Switches to Closed Loop Control during Overload for More Reliable Operation like a Servo Motor

Closed Loop Control

Continues Operation Even with Sudden Load Fluctuation and Sudden Acceleration

It operates synchronously with commands using open loop control during normal conditions. In an overload condition, it switches immediately to closed loop control to correct the position.

Closed Loop Control

Alarm Signal Output in Case of Abnormality

If an overload is applied continuously, an alarm signal is output. When the positioning is complete, and END signal is output. This ensures the same level of reliability as a servo motor.


 

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Order the AZ Series Brochure

AZ Series Brochure

Rotary & Linear Actuator Demo


Motors offer excellent controllability and are therefore used as the drive sources of various automated equipment. In many cases a motor is combines with various mechanical components such as a ball screw, belt and pulley, and rack and pinion to convert the motor rotation to a different type of motion needed to drive the equipment. Oriental Motor has various linear and rotary actuators consisting of a motor assembled with the necessary mechanical components to meet the various needs of automated equipment.

Linear & Rotary Actuator Demo


Oriental Motor has various linear and rotary actuators consisting of a motor assembled with the necessary mechanical components to meet the various needs of automated equipment.

Push Motion Demonstration With DRS2 and DGII Actuators

The DRS is a high-precision integrated ball screw incorporated with an AZ Series stepper motor and driver for continuous high-positioning linear motion. The DRS2 Series uses the AZ Series motor and driver. This helps to save space and reduce wiring, as well as more compact and lightweight design of the equipment.

The DGII Series is a line of of products that combine a high rigidity hollow rotary table with a closed loop stepper motor and driver package. It retains the ease of use of a stepper motor, while also allowing for highly accurate positioning of large inertia loads.

Linear Actuator and Rotary Actuator Multi-Axis Pick and Place Demo

This video demonstrates a pick and place application using three different products: Rotary actuator (DGII Series), compact linear actuator (DRS2 Series) and linear slides (EAS and EZS Series).