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Model KRF
Enclosed Linear Actuator

The KR Linear Actuator features a magnetic seal design that blocks contaminants while minimizing particle generation. With the standard QZ lubricator, it achieves maintenance-free operation. The KSF enhances your automation productivity. Additionally, it can be supplied with THK's proprietary motion controller.

Model KRF
KRF Linear Actuator

Offered in three sizes (KRF4 to KRF6), these linear actuators feature a specialized magnet cover that prevents dust ingress, strokes up to 800mm, and are ideal for clean room applications and pharmaceutical equipment.

KRF with Motion Contorlle

KRF are also available fully equipped with motors and motion controllers. Featuring THK's intuitive motion controllers for fast, easy setup and reliable performance, the system supports servo motors from 50W and 100W output. A "Motor Wrap" configuration is also available for applications requiring a compact footprint.

Customized KRF

THK flexibly accommodate customizing requests to your meet needs such as
・Non-standard lengths
・Custom motor mounting brackets, etc.
Please contact with THK via Chat, local contact, distributors.

Tools

2D/3D CAD

Model KRF Download 2D&3D-CAD

Features

Structure

Fully Enclosed Design

Strip seals on the side cover and upper surface using magnetic attraction method provide a fully enclosed structure. It prevents any problems caused by entering of foreign materials from outside. As well, the top surface of the strip seal is less likely to generate dust by avoiding the contact.

Magnetic Attraction Method
The magnet built in the side cover attracts the strip seal and prevents it from lifting, reducing the development of clearance.

High Rigidity

Use of a steel outer rail with a cross-sectional U shape enables to receive larger moment. The linear actuator body's high rigidity allows for a compact, space-saving design.

THK Products Comparison

Layout example of cantilever configuration