PINSL PSG8S-400W Precision Compact Single Axis Linear Stage

The PSG8S-400W is a compact, high-rigidity single-axis linear module designed for precision positioning applications where space is limited but accuracy and thrust cannot be compromised. It features a φ16 mm C7 precision ball screw with a 5 mm lead, driven by a 400 W AC servo motor, delivering a rated thrust of 1388 N and ±0.01 mm repeatability. With a maximum stroke of 450 mm and support for dual-carriage configurations, it is ideal for inspection, assembly, and light-duty CNC machining where short travel and high stiffness are required.

Core Advantages

• Achieve ±0.01 mm repeatability – precise positioning for micron-level assembly and inspection tasks.
• Deliver 1388 N rated thrust – 5 mm lead and 400 W servo provide ample force for light machining and pressing.
• Maximize stiffness in a compact footprint – short carriage design and rigid aluminum extrusion minimize deflection under load.
• Support dual-carriage configurations – handles horizontal loads up to 50 kg (dual carriage) and vertical loads up to 15 kg.
• Reach 250 mm/s traversing speed – sufficient for fast indexing in short-stroke cycles.
• Integrate with major servo brands – compatible with Mitsubishi, Panasonic, Delta, and Yaskawa 400 W servos.
• Flexible motor mounting – left, right, bottom, or exposed positions to fit machine layouts.

Technical Specifications

* Load values are based on horizontal mounting with 0.3 g acceleration. Single-carriage ratings are approximately half of dual-carriage values — refer to the full datasheet for moment limits.

Product Structure View

Design & Performance Highlights

The PSG8S-400W is engineered for applications that prioritize stiffness and accuracy over travel length. Its compact extrusion profile (width: 80 mm) reduces the overall system footprint while maintaining a wide carriage base that resists moment loads in pitch and yaw directions — critical for single-axis cantilever setups or as a Z-axis in gantry systems.

The 5 mm lead ball screw is paired with a double-nut preload mechanism that eliminates backlash and ensures bidirectional positioning within ±0.01 mm. The motor mounting bracket is designed for quick field reconfiguration (left, right, bottom, or exposed) without disassembling the main structure, enabling the stage to adapt to various machine orientations. Optional dual-carriage configurations increase load capacity and rigidity for applications requiring heavy payloads or extended tooling.

Ordering Information

The PSG8S-400W model code follows the structure below:

PSG8S - 400W - 100 - BC - C4 - M-3M
 │        │      │     │    │     └── Motor: M-3M (Mitsubishi, 3m cable)
 │        │      │     │    └──────── Sensors: C4 (Home + 2 limits)
 │        │      │     └───────────── Motor position: BC (exposed)
 │        │      └─────────────────── Stroke: 100mm
 │        └───────────────────────── Motor output: 400W
 └────────────────────────────────── Model: PSG8S

Motor position options: BC (exposed), BL (left folded), BR (right folded), BM (bottom folded).
Sensor options: C (home only), C4 (home + 2 limits), E (no sensor).
Motor brand codes: M (Mitsubishi), P (Panasonic), T (Delta), Y (Yaskawa).
Carriage options: Single (standard) or Dual (add "-D" suffix for dual carriage).

Typical Applications

• Industrial automation systems requiring high precision in limited space
• CNC machining and assembly equipment
• XYZ linear platforms for precision motion
• Inspection and measurement systems
• Robotic end-effector positioning and tool changing

Customization Options

• Custom stroke lengths (outside 25–450 mm range on request)
• Dual carriage configuration for increased load capacity
• Motor mounting bracket for specific servo brands (Mitsubishi, Panasonic, Delta, Yaskawa)
• Motor orientation (left / right / bottom / exposed)
• 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
• Special lubrication options for cleanroom or food-grade applications

Why Choose the PSG8S-400W?

For automation engineers designing compact workstations or gantry Z-axes, the PSG8S-400W offers a stiffness-to-footprint ratio that is difficult to achieve with larger-profile stages. Its 80 mm width and short carriage length allow dense packaging in multi-axis systems, while the 5 mm lead and 400 W servo deliver a high thrust density (1388 N) — essential for applications that require both pushing force and positional stability, such as press-fit assembly or precise dispensing.

Compared to larger stages like the PSG12 (which can reach longer strokes and higher speeds), the PSG8S is optimized for short-stroke, high-accuracy scenarios where deflection must be minimized. The dual-carriage option further enhances rigidity, making it suitable for carrying heavy tooling or multiple end-effectors without compromising the ±0.01 mm repeatability.

PINSL PSG8S-400W – precision in a compact package.

Inquiry & Customization

We offer customized stroke lengths, carriage configurations, motor integration, and installation direction adjustments. Contact our application engineering team for technical drawings, CAD models, or complete OEM solutions tailored to your specific machine requirements.