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Hexagonal shapes

nPL70S Stage

Linear Motor Stage

The nPL70S is the smallest stage within the nPL70 family. Two motors are available with this model: 1M and 2M. 2M provides higher velocity and acceleration than 1M but limits the travel range. One analog and three digital encoder options are available.

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Performance SpecificationsnPL70S-1MnPL70S-2M
Maximum Travel45 mm25 mm
Encoder resolution0.01 µm
0.1 µm
1.0 µm
0.01 µm
0.1 µm
1.0 µm
Accuracy (Full Travel ISO 230)4 µm
6 µm
10 µm
4 µm
6 µm
10 µm
Bi-directional Repeatability (Full Travel)± 0.4 µm
± 0.5 µm
± 2.0 µm
± 0.4 µm
± 0.5 µm
± 2.0 µm
Straightness & Flatness4 µm4 µm
Pitch & Yaw50 µrad50 µrad
Maximum Velocity (unloaded)1.30 m/s1.37 m/s
Normal Load Capacity10 Kg10 Kg
Peak Force11.9 N23.8 N
Continuous Force3.0 N6.0 N
Duty Cycle100%100%
Stage MaterialAlAl
Stage Mass563 gr588 gr
Moving Carriage Mass327 gr327 gr
Cable Length1 m1 m
Motor Control Specifications1M2M
Motor Constant1.67 N/√W2.42 N/√W
Continuous Power3.20 W6.10 W
Peak Power50.90 W97.10 W
Electrical Cycle21.00 mm21.00 mm
Max Bus Voltage60.00 V60.00 V
Max Coil Temperature125.00 °C125.00 °C
Thermal Dissipation Constant0.04 W/°C0.08 W/°C
Continuous Current1.70 Arms1.70 Arms
Peak Current6.80 Arms6.80 Arms
Force Constant1.75 N/Arms3.50 N/Arms
Back EMF Constant1.40 Vpk/(m/s)2.90 Vpk/(m/s)
Inductance0.11 mH0.22 mH
Thermal Resistance @25 °C1.10 Ohms2.10 Ohms
Electrical Time Constant0.10 ms0.10 ms

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