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Oriental Motor offers a wide range of motion control products to meet a wide range of applications, select the appropriate application type below.

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EAC Series Closed Loop Linear Actuators

EAC Series Closed Loop AR Series Electric Linear Cylinders / Linear Actuators
The AlphaStep EAC Series stepper motor linear cylinders are quick and responsive and incorporate a ball screw design, offering high performance from low speed to high speed or with light loads or heavy loads, regardless of demanding operating conditions. Available in a straight type or reversed motor type and with a shaft guide and cover version also available, saves design time and parts.
- Stroke Lengths from 50mm up to 300mm
- Available with or without Shaft Guide
- Electromagnetic Brake available
- AC or DC Input
- Repetitive Positioning Accuracy = ±0.02 mm
- Requires AR Series Driver (sold separately)
Linear Actuators Lineup
Type |
Power Input |
Options |
Thrust Force* |
Push Force* |
Stroke |
EAC4 |
6 mm or 12 mm Lead Electromagnetic Brake |
~70 or ~140 |
100 or 200 |
50 ~ 300 |
|
EAC4 with Guide |
6 mm or 12 mm Lead Electromagnetic Brake |
~70 or ~140 |
100 or 200 |
50 ~ 300 |
|
EAC4 |
6 mm or 12 mm Lead Electromagnetic Brake |
~70 or ~140 |
100 or 200 |
50 ~ 300 |
|
EAC4 with Guide |
6 mm or 12 mm Lead Electromagnetic Brake |
~70 or ~140 |
100 or 200 |
50 ~ 300 |
|
Type |
Power Input |
Options |
Thrust Force* |
Push Force* |
Stroke |
EAC6 |
6 mm or 12 mm Lead Electromagnetic Brake |
~200 or ~400 |
400 or 500 |
50 ~ 300 |
|
EAC6 with Guide |
6 mm or 12 mm Lead Electromagnetic Brake |
~200 or ~400 |
400 or 500 |
50 ~ 300 |
|
EAC6 |
6 mm or 12 mm Lead Electromagnetic Brake |
~200 or ~400 |
400 or 500 |
50 ~ 300 |
|
EAC6 with Guide |
6 mm or 12 mm Lead Electromagnetic Brake |
~200 or ~400 |
400 or 500 |
50 ~ 300 |
|
Repetitive Positioning Accuracy = ±0.02 mm
*Thrust Force = ~70 N (EAC4, 12 mm Lead), ~140 N (EAC4, 6 mm Lead), ~200 N (EAC6, 12 mm Lead) or ~400 N (EAC6, 6 mm Lead)
*Push Force = 100 N (EAC4, 12 mm Lead), 200 N (EAC4, 6 mm Lead), 400 N (EAC6, 12 mm Lead) or 500 N (EAC6, 6 mm Lead)
Linear Cylinders
Compact, High Thrust Linear Actuator
Using aluminum for the rod, these motorized cylinders produce high thrust force despite their compact and lightweight body. The unique structure suppresses vibration to achieve improved acceleration characteristics and high-speed positioning operation.

Capable of a Variety of Movements
Offering the ability from low speed to high speed or with light loads or heavy loads, these linear actuators are easier to use and offer high performance regardless of demanding operating conditions.
High-speed is possible with light loads or heavy loads, or even during inching operations.
Quick & Responsive
The high response of the closed loop stepper motor and drive system provides superior short-distance positioning.
Since the AlphaStep AR Series stepper motor operates synchronously with pulse commands and generates high torque with a compact body, it offers excellent acceleration performance and response
Direction of Motor Installation
Reversed Motor types are provided for all linear actuators. This contributes to a shorter overall length and space savings.
Cable Outlet Direction
Motor cable can be changed to any direction* by simply rotating
the stepper motor. There is no need to leave space behind the motor since
the cable outlet is on one side of the motor, allowing for easy
connection and saving space.
*3 directions for Reversed Motor types
Application Example
AlphaStep Control System
Hybrid Control System
The hybrid control system constantly monitors the motors position allowing for the benefits of performance from "open loop" control while providing the assurance of "closed loop " performance.


Reversed Motor Type

Reversed Motor types are provided for all linear actuators. This contributes to a shorter overall length and space savings.
Simple Maintenance for Reversed Motor Type
Maintainability has been improved by using Oriental Motor's unique belt tension adjustment mechanism and through the standardization of maintenance parts based on the AR Series.
Thanks to Oriental Motor's unique belt tension adjustment mechanism, belt replacement is easy.
If the screw is loosened, the belt tension is adjusted to an appropriate value by the force of the spring.
Shaft Guide

Shaft Guide and Cover
There is no need to design or procure parts for the external guide. Moving parts on the cylinder main unit side are protected, improving equipment safety. This is useful for grease splash prevention in the shaft guide section and the prevention of the infiltration of foreign particles in the linear bush section.
Electromagnetic Brake
Vertical operation is possible with electromagnetic brake. The load position can be held when the power is cut off. Since the work will not fall in case of power failure or disconnection, you can safely use equipment in which the work moves vertically.
AR Series AC Input Drivers
The AlphaStep ARD (AC Input) Drivers offers superior high speed performance, low vibration and closed loop control. Available in a stored data (network) driver or pulse input driver. Advanced operation and function control is included through our MEXE02 software (free download). The ARD (AC Input) Drivers can perform quick positioning operations over a short distance without the need for tuning, while providing smooth performance.
- Built-in Protective Functions
- Pulse Input or Built-in Controller (Network) Types
- Single-Phase 100-115, 200-240 VAC or Three-Phase 200-230 VAC
- For use with AlphaStep AR Series Motors (AC Input)
AR Series DC Input Drivers
The AlphaStep ARD-K (DC Input) Drivers offer 24/48 VDC input voltage, low vibration and closed loop control. Available in a stored data (network) driver or pulse input driver. Advanced operation and function control is included through our MEXE02 software (free download). The ARD-K (DC Input) Driver can perform quick positioning operations over a short distance without the need for tuning, while providing smooth performance.
- Built-in Protective Functions
- Pulse Input or Built-in Controller (Network) Types
- 24/48 VDC
- For use with AlphaStep AR Series Motors (DC Input)
Cables
These cables are used to connect or extend the distance between the motor and driver.
Required (sold separately).
Use a flexible motor cable if the motor is installed on a moving part or its cable will be flexed.
Mounting Plates (Flange or Foot Type)

Flange or Foot Type installation plates.
This is convenient for installing the actuator to the surface of the equipment.
Battery Set
You can build an absolute system that detects absolute positions by connecting the accessory battery (sold separately).
*For use with Stored Data (Network) type
System Configuration
CAD / Manual Search
To locate product CAD and Operator Manuals please search using the product Item Number.