High Torque Single Axis Linear Stage | Ball Screw CNC Automation Module
KA Series High Torque Single Axis Linear Stage
The KA Series is a single-axis ball screw driven linear stage engineered for applications that require high thrust output, structural rigidity, and reliable positioning accuracy. Its reinforced aluminum body, oversized ball screw options (16–25 mm diameter), and servo motor compatibility make it a practical choice for CNC machining, laser cutting, and heavy-load gantry systems.
Core Advantages
- Achieve ±0.01 mm repeatability – maintains consistent positioning across the full stroke for precision automation tasks.
- Deliver high torque output via oversized ball screw (16/20/25 mm diameter) matched with 200W–750W servo motors.
- Support multiple mounting orientations – motor can be positioned left, right, top, or bottom to fit machine layouts.
- Maintain rigidity under load with a high-strength aluminum extrusion profile that resists deflection.
- Reduce setup time with integrated limit and home sensors pre-wired for immediate connection.
- Adapt to various control systems – compatible with closed-loop servo drives for enhanced positioning stability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Drive Type | Precision ball screw (C5 grade, preloaded nut) |
| Repeatability | ±0.01 mm |
| Max Linear Speed | Up to 250 mm/s (dependent on screw lead and motor RPM) |
| Stroke Range | 50 – 1200 mm (custom lengths on request) |
| Ball Screw Diameter | 16 mm / 20 mm / 25 mm (selectable) |
| Motor Power | 200W / 400W / 750W AC servo (compatible with Mitsubishi, Yaskawa, Panasonic, Delta) |
| Motor Mounting | Left / Right / Top / Bottom (field-configurable) |
| Screw Lead Options | 5 / 10 / 20 mm (customizable) |
* Load capacity varies by stroke length and screw diameter — refer to the engineering datasheet for specific load-speed curves.
Product Overview
Design & Performance Highlights
The KA Series uses a rigid aluminum alloy extrusion with integrated linear guide ways, machined on a single setup to ensure parallelism between the screw axis and guide rails. This manufacturing approach minimizes assembly errors and provides a stable foundation for the ball screw support bearings.
The preloaded ball nut eliminates axial backlash, while the adjustable motor mounting bracket allows field configuration of the drive orientation (left, right, top, or bottom) without disassembling the main structure. Built-in mechanical stops and sensor mounting grooves simplify the installation of limit and home switches.
Drive System Options
- Ball screw drive – provides high thrust and rigidity for heavy-load positioning tasks.
- Servo motor drive – delivers stable torque output across the entire speed range.
- Closed-loop control – supports encoder feedback for enhanced positioning accuracy and error correction.
Typical Applications
- CNC machining equipment (milling, drilling, routing)
- Laser cutting and engraving machines
- Automated assembly and production lines
- 3-axis gantry systems
- Industrial robotics and material handling
Customization Options
- Custom stroke lengths (50–1200 mm range, extended lengths available on request)
- Ball screw lead selection (5/10/20 mm) to optimize speed vs. thrust
- Motor mounting bracket for specific servo brands (Mitsubishi, Yaskawa, Panasonic, Delta, Sanyo)
- Motor orientation (left/right/top/bottom) – field configurable
- Integrated limit/home sensor kits (NPN/PNP, magnetic reed, or optical)
- Protective bellows or metal covers for dusty or coolant-laden environments
- Vertical orientation brake kits
Why Choose the KA Series?
For engineers designing single-axis or multi-axis positioning systems, the KA Series offers a balanced combination of torque capacity, structural rigidity, and configuration flexibility. Its oversized screw diameter (up to 25 mm) and high-rigidity extrusion provide significantly higher torsional stiffness than compact-profile modules of similar dimensions, making it particularly suitable for cantilevered loads or vertical axis applications.
Compared to belt-driven alternatives, the KA's ball screw drive delivers superior thrust at low speeds and maintains holding torque during idle periods — essential for machining operations where tool position must remain stable under cutting forces. The modular motor mount allows you to adapt the drive orientation to match existing machine layouts, reducing the need for custom brackets or adaptor plates.
PSG KA Series – high torque motion, built for demanding automation.
Inquiry & Customization
We offer customized stroke lengths, motor brand integration, load capacity optimization, and installation direction adjustments. Contact our application engineering team for technical drawings, CAD models, or complete OEM solutions tailored to your specific machine requirements.
0086-18680081739