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THK KR Series Linear Slide Actuator

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MOQ : 1 Piece

THK KR Series Linear Slide Actuator Specification

Hardness
Steel components hardened to HRC 60 or higher

Thread Type
Metric ball screw

Accuracy
Repeatability 0.003 mm

Cutting Speed
Not applicable (linear actuator)

Method
Driven by precision ball screw

Weight
Varies by model; approx. 2 to 20 kg

Coating
Corrosion-resistant anodized or black oxide coating

Size
Available from 33 mm to 100 mm rail width

Shape
Rectangular actuator with compact cross-section

Load Capacity
Up to 10~200+ kg (dependent on rail/model)

Spindle Speed
Not applicable (linear actuator)

Machine Type
Linear actuator with integrated guide and drive

Type
KR Series Linear Slide Actuator

Material
Aluminum alloy base with integrated steel rails and ball screw

Tolerance
High precision tolerance (+/- 0.01 mm)

Surface
Anodized aluminum and ground steel surfaces

Use
Linear motion for automation and robotics

Application
CNC machines, automated assembly, semiconductor equipment, industrial automation

Usage & Applications
High-speed positioning, precise linear guidance, load transfer

Protection
Dust-proof structure with seal options

Guide System
Integrated LM Guide (linear motion guide block)

Ambient Temperature
-10°C to +80°C

Compliance
RoHS compliant

Max Speed
Up to 1,500 mm/sec (depending on size and lead)

Lubrication
Sealed with long-life grease and integral lubrication port

Stroke Length
Up to 1200 mm (varies by model)

Mounting
Multiple mounting orientations (horizontal, vertical, wall)

Motor Mount
Compatible with servo and stepper motors (customizable coupling)

Drive System
Integrated precision rolled or ground ball screw

THK KR Series Linear Slide Actuator Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash on Delivery (COD)

Delivery Time
Months

Sample Available
Yes

Sample Policy
Contact us for information regarding our sample policy

About THK KR Series Linear Slide Actuator

Standard model of KR.

KR-A nut blocks are provided to achieve higher rigidity, higher load capacity, and higher precision Thk kr actuaot linear slide model

KR15-A

KR15-B

KR20-A

KR20-B

KR26-A

KR26-B

KR30H-A

KR30H-B

KR30H-C

KR30H-D

KR33-A

KR33-B

KR33-C

KR33-D

KR45H-A

KR45H-B

KR45H-C

KR45H-D

KR46-A

KR46-B

KR46-C

KR46-D

KR55-A

KR55-B

KR65-A

KR65-B

Precision and Reliability for Automated Systems

The THK KR Series Linear Slide Actuator ensures exceptional accuracy and high-repeatability motion, making it essential for precision automation, CNC tools, and semiconductor equipment. Its integrated linear motion guide and precision ball screw deliver smooth, controlled movement, while the robust build and advanced sealing protect against dust and contaminants, extending system life.

Flexible Integration and Durable Construction

Designed with adaptable mounting optionshorizontal, vertical, or wallthe KR Series fits seamlessly into different machine layouts. Its corrosion-resistant aluminum alloy base, hardened steel rails, and metric ball screw ensure long-term reliability and support heavy loads up to 200 kg. The integral lubrication port simplifies maintenance for continuous operation.

Industry-Leading Performance and Compliance

Combining high load capacity with fast speeds up to 1,500 mm/sec and RoHS-compliant construction, the THK KR Series is suitable for industries demanding strict accuracy and cleanliness. Multiple model options, custom motor coupling, and advanced protection seals expand its suitability for various environments and technical requirements.

FAQs of THK KR Series Linear Slide Actuator:

Q: How does the THK KR Series Actuator achieve its high positioning accuracy?

A: The KR Series uses a precision-rolled or ground ball screw drive integrated with a linear motion guide (LM Guide block), delivering high-precision movement with repeatability up to 0.003 mm and tolerance of 0.01 mm. The hardened steel components, precision assembly, and tightly sealed structure ensure consistent, reliable accuracy.

Q: What mounting orientations are supported and how does that benefit installation?

A: The actuator can be mounted in horizontal, vertical, or wall orientations, offering flexibility to adapt to various machine layouts and space constraints. This enables users to optimize equipment design and integrate the actuator easily into existing automation systems.

Q: What applications are best suited for the KR Series Linear Slide Actuator?

A: This actuator excels in precise linear motion tasks for CNC machines, automated assembly lines, semiconductor manufacturing, and broader industrial automation. Its high-speed capability, load transfer capacity, and corrosion resistance make it ideal for demanding environments requiring consistent performance.

Q: How is maintenance handled, and what is the process for lubrication?

A: Maintenance is simplified by the actuators integral lubrication port, which allows for scheduled grease replenishment without disassembling the unit. The sealed body is pre-filled with long-life grease, minimizing the interval and effort of routine maintenance.

Q: Which motors are compatible with the KR Series, and how can they be customized?

A: The actuator is compatible with both servo and stepper motors. Customizable coupling options are available to match a range of motor brands and models, ensuring seamless integration into different motion control systems.

Q: When should dust-proof seal options be considered?

A: Dust-proof seal options are recommended for applications in contaminated or harsh environments, such as machining, assembly, or electronic production lines, where particles may impact performance or longevity. The seals help protect internal components and extend the actuators operational life.

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