LINEAR STAGE
nPS35 Stage
nPS35 Stage Compact Stages with Cross-roller Bearings
The nPS35 is an ultra-compact screw-driven linear stage with cross-roller bearings for smooth, high-stiffness, and repeatable motion in space-constrained systems. Available in lead screw or ball screw configurations, it supports applications requiring either self-locking precision or higher-speed dynamic performance.
With up to 12 mm of travel and nanometer-scale positioning capability, the nPS35 is ideal for photonics, biomedical instrumentation, optical alignment, and precision assembly applications.
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Key Features
The nPS35 series are ultra-compact positioning stages equipped with high-precision crossroller bearings, ensuring superior stiffness and smooth linear motion. They are available in two drive configurations: lead screw (LS) and ball screw (BS). Lead
Screw (LS) Version – Offers a cost-effective solution, particularly advantageous in vertical-axis applications due to its inherent self-locking capability, eliminating the need for external braking mechanisms.
Ball Screw (BS) Version – Designed for applications demanding higher mechanical efficiency, extended duty cycles, or elevated traverse speeds, providing superior performance in dynamic environments. These stages are optimized for use in Photonics, Precision Assembly, and Biomedical instrumentation, where compact design, reliability, and repeatability are critical.
Specifications Description
| Attribute | nPS35-03LS12 | nPS35-05BS12 |
|---|---|---|
| Maximum Travel | 12 mm | 12 mm |
|
Screw Lead |
0.3048 mm (Leadscrew) | 0.5 mm (Ballscrew) |
| Maximum Velocity (unloaded) | 2.5 mm/s | 5 mm/s |
| Accuracy (Full Travel ISO 230) | 15 um | 7.5 um |
| Bi-directional Repeatability (Full Travel) | 5 um | 2.5 um |
| Pitch | 120 urad | 120 urad |
| Yaw | 120 urad | 120 urad |
| Rotary Encoder Resolutions (for homeing and stall detection) | 4000 cts/rev | 4000 cts/rev |
| Linear Travel per microStep * | 7 nm | 10 nm |
| Minimum Incremental Step ** | 100 nm | 100 nm |
| Maximum Load Horizontal | 10 Kg | 10 Kg |
| Maximum Load Vertical | 10 Kg | 10 Kg |
| Maximum Load Moment (Pitch) | 10 Nm | 10 Nm |
| Maximum Load Moment (Yaw) | 8.5 Nm | 8.5 Nm |
| Maximum Load Moment (Roll) | 22 Nm | 22 Nm |
| Optional Limit Sensor | Hall, 5V NPN/PNP | Hall, 5V NPN/PNP |
| Stage Material | SS | SS |
| Stage Mass | 300 gr | 300 gr |
| Cable Length | 2 m | 2 m |
Motor Specifications
| Attribute | Details |
|---|---|
| Motor | 2 phase stepper |
| Motor Step Angle | 1.8 degrees |
| Motor Max Voltage | 36 Vdc |
| Motor Rated Current | 1 Amp |
| Motor Phase Inductance | 2.5 mH |
| Motor Resistance | 2.7 Ohm |
