Linear Actuators

LAH Linear Actuator Precision Ball Screw

Compact precision linear actuator with ball screw providing positioning accuracy better than 4 microns and repeatability of 1 micron

ModelLAH
SeriesLAH Series
Global Stock Network Custom Gear Ratios Application Engineering STO Safety Compliant
LAH product image 1
LAH
Model

1 / 2 · Click thumbnail to view

LAH · 2 product images· Contact LVH for CAD files

Product Overview

LAH series compact linear actuators offer high-resolution and high-thrust. Precision ball screw provides positioning accuracy better than 4 microns and repeatability of 1 micron. Available in LAH-46 for DC servo motors or stepper motors. Stroke 10mm or 30mm. Maximum thrust force 390N.

The LAH is a fully integrated rotary actuator combining servo motor, harmonic gear reducer, encoders, servo electronics, and compact mechanical packaging in a single assembly.

📐
Outer Diameter
⚖️
Weight
🔩
Hollow Shaft
18 mm
💪
Max Torque
🔄
Max Speed
⚙️
Gear Ratios
🎯
Output Type
Integrated robot joint module

Precision Linear Motion

Harmonic Drive linear actuators use precision ball screw mechanisms to convert rotary servo motor output into controlled linear motion. High resolution, low lost motion, and compact form factors make them suited for precision instrumentation and automation applications.

📐

Sub-micron Resolution

Precision ball screw delivers high linear resolution for demanding measurement and positioning.

🎯

High Accuracy

Positioning accuracy to sub-4-micron level depending on model selection.

🔄

Low Lost Motion

Minimal backlash and low lost motion for precise bidirectional positioning.

🔒

Self-Locking Option

High thrust LBC series provides self-locking to maintain position without servo power.

Servo Motor Drive

DC servo or stepper motor variants available for flexible system integration.

🔧

Compact Design

Compact actuator housings suited for integration in precision instruments and machines.

Typical Applications

The LAH suits measuring instruments, test and inspection systems, optical equipment, semiconductor manufacturing, LCD manufacturing, precision laboratory automation, and industrial clamping and pressing applications.

Key Specifications

Critical performance parameters at a glance

📊
LAH-46
Available Size
📊
10mm and 30mmmm
Stroke Options
📊
Better than 4 micronsmicron
Positioning Accuracy
📊
Plus minus 0.5 micron or less per 1mm strokemicron
Repeatability
📊
0.069micron
Resolution
📊
390N
Maximum Thrust Force
📊
DC servo motor or stepper motor
Drive Motor
📊
810g
Mass

Technical Specifications

Overview

Available Size
LAH-46
Stroke Options
10mm and 30mm mm
Positioning Accuracy
Better than 4 microns micron
Repeatability
Plus minus 0.5 micron or less per 1mm stroke micron
Resolution
0.069 micron
Maximum Thrust Force
390 N
Drive Motor
DC servo motor or stepper motor

LAH-46 10mm Stroke

Mass
810 g

LAH-46 30mm Stroke

Mass
850 g

Product Attributes

Product Type
Precision Linear Actuator
Accuracy
Better than 4 microns
Max Thrust
390N
Stroke
10mm and 30mm
Motor
DC servo or stepper

Industrial Applications

These linear actuators are used where controlled linear motion, compact installation, and repeatable performance are required in industrial equipment.

↔️

Linear Positioning

Used in positioning stages, stops, and transfer devices where controlled linear travel is central to the mechanism.

PositioningLinear travelPrecision
🏭

Factory Automation

Supports machine automation tasks such as pushing, lifting, clamping, and guided motion in production equipment.

AutomationMachine motionIndustrial
📦

Packaging Equipment

Applied in sealing, feeding, indexing, and product-handling systems requiring repeatable linear movement.

PackagingHandlingRepeatability
🔬

Inspection & Lab Systems

Used in compact motion platforms where clean linear movement is required for measurement or handling tasks.

InspectionLab systemsCompact
🧰

OEM Subassemblies

Integrated into machine-builder assemblies that need packaged linear motion without designing from scratch.

OEMSubassemblyLinear motion
⚙️

Custom Machinery

Supports specialist machine builds that require dependable linear actuation in limited installation space.

Custom machineryCompactActuation
Customization Available

Factory Modification & Custom Sourcing

This product supports custom configurations and equivalent sourcing

Available Modifications

  • Torque and speed ratio customization
  • Mounting interface modifications
  • Connector and wiring specifications
  • Housing and enclosure options

Sourcing Options

  • Standard product sourcing
  • Equivalent product identification
  • Replacement part sourcing
  • Volume pricing (MOQ may apply)

Request Pricing & Availability

Submit an RFQ for standard products, custom configurations, or equivalent alternatives

Expert Answers

Frequently Asked Questions

Technical answers sourced from engineering specifications and integration guides.

The LAH-46 is a compact precision linear actuator for DC servo or stepper motor drive with positioning accuracy better than 4 microns and repeatability of plus or minus 0.5 microns.

Have a technical question not answered above?

Our application engineers review every RFQ and respond with specification-matched recommendations.

Ask an Engineer