SDM Series Ball Screw Linear Actuator
The SDM Series is a ball screw linear actuator designed for stable positioning, high repeatability and high-load linear motion in general automation environments. With a rigid aluminum profile, precision ball screw drive and linear guide structure, the SDM screw actuator provides smooth movement, accurate positioning and reliable performance for industrial automation equipment. This automation ball screw linear module is suitable for precision assembly, inspection equipment, laser processing, electronic component production, battery equipment, vertical axis applications and multi-axis linear robot systems. Multiple models including SDM75, SDM100, SDM120, SDM136, SDM175, SDM210 and SDM270 are available to meet different load, stroke, speed and installation requirements.
Product Series
Features of SDM Ball Screw Linear Actuator
High Repeatability
The precision ball screw drive structure provides stable positioning and high repeatability for assembly, inspection and positioning applications.
High Load Capacity
The SDM ball screw linear actuator is suitable for applications requiring higher thrust force, rigidity and load capacity than belt driven linear actuators.
Stable Linear Guide Structure
The integrated ball screw and linear guide design supports smooth motion, compact installation and reliable operation in general automation environments.
Flexible Automation Integration
SDM screw actuators can be used as a single linear axis or combined into XY, XYZ and gantry linear robot systems according to the application.
SDM Ball Screw Linear Actuator FAQ
What is a ball screw linear actuator?
A ball screw linear actuator is a linear motion module that uses a precision ball screw and linear guide structure to convert rotary motor motion into accurate straight-line movement. The SDM Series is designed for stable positioning, high repeatability and general industrial automation applications.+
What is the difference between a ball screw linear actuator and a be...
A ball screw linear actuator is better for high repeatability, high thrust force, rigidity and precise positioning. A belt driven linear actuator is better for high-speed and long-stroke transfer applications. SDM Series is recommended when accuracy, load capacity and stable positioning are more important.
How do I select the right SDM ball screw linear actuator?
Selection depends on load, stroke, speed, acceleration, installation direction, positioning accuracy, duty cycle and working environment. SAHO engineers can help recommend SDM75, SDM100, SDM120, SDM136, SDM175, SDM210 or SDM270 based on your application data.
Can the SDM Series be mounted vertically?
Yes. For vertical installation, a brake motor or mechanical lock is recommended to prevent gravity drop and improve safety. Ball screw linear actuators are commonly used for vertical axis applications.
What is the repeat positioning accuracy of the SDM screw actuator?
The repeat positioning accuracy depends on model, stroke, screw lead, motor configuration and installation conditions. Ball screw linear actuators usually provide higher repeatability than belt driven linear actuators.
Does a ball screw linear actuator require maintenance?
Yes. Regular lubrication of the ball screw and guideway, cleaning of the working area and inspection of operating conditions help maintain accuracy and service life.
Which motor brands are compatible with the SDM Series?
The SDM Series can be matched with common servo motor brands such as Mitsubishi, Panasonic, Yaskawa, Delta, Inovance and other standard servo motors.
Can SAHO provide custom stroke or dust-proof ball screw linear actua...
Yes. SAHO can customize stroke length, dust cover, motor mounting direction, sensor position, installation interface and multi-axis linear robot structures according to the project requirements.
SDM Ball Screw Linear Actuator Applications
SDM ball screw linear actuators and screw type linear actuator modules are used in precision assembly, laser processing, inspection equipment, medical automation, lithium battery production, electronic component assembly, automotive equipment and solar cell handling.













