Linear Modules

SEA MOTION high-performance Linear Modules is an integrated precision motion component developed based on self-researched linear drive motor technology, integrating driving structure, guiding structure and control structure into one compact unit.

The SEA MOTION Linear Modules is a high-performance, integrated precision motion component developed using our self-researched linear drive motor technology. By merging the driving structure, guiding structure, and control structure into a single, highly compact unit, this product delivers exceptional motion efficiency. It stands as a mainstream, cost-effective alternative to expensive foreign brands in overseas markets, providing uncompromising reliability for high-end industrial automation, precision processing, and semiconductor manufacturing equipment.

Key Structural Advantages

Wear-Free Direct-Drive Innovation: Driven by advanced linear motor technology instead of traditional ball screws, our products completely eliminate transmission backlash, mechanical wear, and pitch errors.

Ultra-Smooth & High-Speed Performance: Achieves superior velocity smoothness and dynamic response, ensuring reliable accuracy even during high-acceleration industrial cycles.

2026 Clean Workshop Manufacturing: With the full completion of our brand-new, state-of-the-art clean workshop in 2026, our production precision, manufacturing yield, and volume delivery capacity have been comprehensively upgraded.

Rigorous Factory Calibration: Every single linear module undergoes strict multi-axis factory calibration, microscopic precision alignment testing, and intensive operational aging tests to guarantee absolute product consistency.

Flexible Non-Standard Development: Backed by robust industry research and academic collaborations, we offer rapid customized non-standard development alongside large-scale mass production.

Target Industrial Applications

Engineered to adapt to diverse and highly complex industrial working conditions, the SEA MOTION linear module excels in precision-demanding fields:

Semiconductor Processing Equipment: Fits cleanroom-level wafer handling, inspection, and packaging lines due to its non-contact, low-particle-generation direct-drive nature.

High-End Industrial Automation: Drives high-speed pick-and-place systems, multi-axis gantry robots, and automated assembly conveyor tracks.

Precision Processing & Machining: Provides stable, micro-positioning linear movements for laser cutting, precision engraving, and electronic dispensing machinery.

SEA MOTION linear motors are mainly divided into four series:

1. SMJ series flat magnetic linear module with iron core

2. SMUC series intermediate magnetic linear module with iron core

3. SMU-H series bilateral magnetic linear module with iron core

4. SMU series bilateral magnetic linear module without iron core

Also available is the semi-closed SMJE series.

Fully enclosed SMJD

We have also developed and produced various equipment, such as high-precision laser cutting equipment and visual recognition and inspection equipment.

Specification

Product feature And Application

SEA MOTION linear module inherits all the core advantages of high-end linear drive motors, featuring zero backlash, ultra-low operation noise, high acceleration response and maintenance-free long-term operation. It supports long-stable splicing motion and high-frequency reciprocating operation, with micron-level repeated positioning accuracy, effectively improving production efficiency and product processing finish. With integrated plug-and-play design, it greatly reduces customers’ installation and debugging costs. It is widely used in multiple high-end fields: semiconductor and panel precision processing such as laser drilling and chip sorting; high-speed and high-precision processing of five-axis machine tools and laser equipment; high-efficiency lamination and detection of new energy lithium batteries and photovoltaic cells; precise and silent motion control of medical surgical equipment and detection instruments. It also covers 3C electronic automated production, intelligent logistics sorting, rail transit auxiliary equipment and aerospace precision test platforms, providing reliable integrated motion solutions for global high-end precision manufacturing.

Production size and F-V curve

SMU21 series linear module size / mm

SMU21 mover size

SMU21 stator size

SMU21 F-V curve