N-331.10
PICMAWalk walking drive; 30 mm travel range (open loop); 50 N drive force; 12 mm/s maximum velocity; 2 m cable length
N-331 PICMAWalk Walking Drive
OEM Walking Drive for Durable Applications with up to 12 mm/s Velocity and 50 N Drive Force
- Robust walking drive for industrial use with PICMA® technology for extreme durability
- Fastest and strongest drive of its size class
- Variable runner lengths from 25 mm to 100 mm
- Precise, nanometer precision positioning of loads up to 5 kg
- Plug-and-play, thanks to PI proprietary controller technology
- Vacuum versions to 10-9 hPa available
The N-331 drive reliably performs repeatable 10-nm steps. Measured by an interferometer.
N-331.xx, dimensions in mm. Note that a comma is used in the drawings instead of a decimal point.
N-331 PICMAWalk Walking Drive
Product Description
Specifications
Downloads
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Application fields
- Industrial precision positioning
- Semiconductor technology
- Semiconductor tests
- Wafer inspection
- Lithography
- Nanoimprinting
- Nanometrology
Outstanding lifetime due to PICMA® piezo actuators
The PICMA® piezo actuators are all-ceramic insulated. This protects them against humidity and failure resulting from an increase in leakage current. PICMA® actuators offer an up to ten times longer lifetime than conventional polymer-insulated actuators. 100 billion cycles without a single failure are proven.
Nanometer precision and high feed force with PiezoWalk® walking drives
In the PiezoWalk® walking drive, several piezo actuators do a walking motion that leads to a forward feed of a runner. Control of the actuators allows the smallest step and forward feed motion at a resolution of well under one nanometer.
Highly accurate position measuring with incremental linear encoder
Noncontact optical linear encoders measure the position directly at the platform with the greatest accuracy. Nonlinearity, mechanical play or elastic deformation have no influence on the measurement.
Specifications
Specifications
Select a travel range:
| Motion | N-331.10 | N-331.13 | N-331.20 | N-331.23 | N-331.40 | N-331.43 | Tolerance |
|---|---|---|---|---|---|---|---|
| Active axes | X | X | X | X | X | X | |
| Travel range in X | — | 25 mm | — | 50 mm | — | 100 mm | |
| Travel range in X, open loop | 30 mm | 30 mm | 55 mm | 55 mm | 105 mm | 105 mm | ±0,5 mm |
| Travel range in X (analog mode) | 20 µm | 20 µm | 20 µm | 20 µm | 20 µm | 20 µm | typ. |
| Operating frequency in full step mode | 0.6 kHz | 0.6 kHz | 0.6 kHz | 0.6 kHz | 0.6 kHz | 0.6 kHz | |
| Velocity (100% duty cycle, full-step mode) | 12 mm/s | 12 mm/s | 12 mm/s | 12 mm/s | 12 mm/s | 12 mm/s | max. |
| Velocity (100% duty cycle, nanostepping mode) | 10 mm/s | 10 mm/s | 10 mm/s | 10 mm/s | 10 mm/s | 10 mm/s | max. |
| Positioning | N-331.10 | N-331.13 | N-331.20 | N-331.23 | N-331.40 | N-331.43 | Tolerance |
| Minimum incremental motion in X | 0.01 µm | 0.01 µm | 0.01 µm | 0.01 µm | 0.01 µm | 0.01 µm | typ. |
| Resolution in X, open loop | 0.02 nm | 0.02 nm | 0.02 nm | 0.02 nm | 0.02 nm | 0.02 nm | typ. |
| Integrated sensor | — | Incremental linear encoder | — | Incremental linear encoder | — | Incremental linear encoder | |
| System resolution in X | — | 10 nm | — | 10 nm | — | 10 nm | |
| Drive Properties | N-331.10 | N-331.13 | N-331.20 | N-331.23 | N-331.40 | N-331.43 | Tolerance |
| Drive type | PICMAWalk | PICMAWalk | PICMAWalk | PICMAWalk | PICMAWalk | PICMAWalk | |
| Operating voltage | -20 to 120 V | -20 to 120 V | -20 to 120 V | -20 to 120 V | -20 to 120 V | -20 to 120 V | |
| Drive force in positive direction of motion in X | 50 N | 50 N | 50 N | 50 N | 50 N | 50 N | min. |
| Drive force in negative direction of motion in X | 50 N | 50 N | 50 N | 50 N | 50 N | 50 N | min. |
| Mechanical Properties | N-331.10 | N-331.13 | N-331.20 | N-331.23 | N-331.40 | N-331.43 | Tolerance |
| Holding force in X, passive | 60 N | 60 N | 60 N | 60 N | 60 N | 60 N | min. |
| Moved mass in X, unloaded | 110 g | 110 g | 140 g | 140 g | 190 g | 190 g | |
| Overall mass | 580 g | 580 g | 610 g | 610 g | 660 g | 660 g | |
| Material | Aluminum, stainless steel | Aluminum, stainless steel | Aluminum, stainless steel | Aluminum, stainless steel | Aluminum, stainless steel | Aluminum, stainless steel | |
| Endurance at 1013 hPa, 2 kg payload, 70% duty cycle | > 30 km | > 30 km | > 30 km | > 30 km | > 30 km | > 30 km | |
| Miscellaneous | N-331.10 | N-331.13 | N-331.20 | N-331.23 | N-331.40 | N-331.43 | Tolerance |
| Operating temperature range | 0 to 50 °C | 0 to 50 °C | 0 to 50 °C | 0 to 50 °C | 0 to 50 °C | 0 to 50 °C | |
| Connector | D-sub 37 (m) | D-sub 37 (m) | D-sub 37 (m) | D-sub 37 (m) | D-sub 37 (m) | D-sub 37 (m) | |
| Cable length | 2 m | 2 m | 2 m | 2 m | 2 m | 2 m | |
| Recommended controllers / drivers | E-712.1AN • E-712.2AN • E-712.3AN | E-712.1AN • E-712.2AN • E-712.3AN | E-712.1AN • E-712.2AN • E-712.3AN | E-712.1AN • E-712.2AN • E-712.3AN | E-712.1AN • E-712.2AN • E-712.3AN | E-712.1AN • E-712.2AN • E-712.3AN |
Travel range in X, open loop: From one mechanical hard stop of the runner to the other mechanical hard stop, only in open-loop operation
Velocity (100 % duty cycle, full-step mode): depends on the controller, the load, and the servo parameters: in this case an E-712.AN controller is used. For longer positioning processes, operate the linear actuator with this controller at a velocity below 3 mm/s.
Operating frequency in full-step mode: when operated with a digital controller with 25 W peak power output
All specifications based on room temperature (22 °C ±3 °C).
At PI, technical data is specified at 22 ±3 °C. Unless otherwise stated, the values are for unloaded conditions. Some properties are interdependent. The designation "typ." indicates a statistical average for a property; it does not indicate a guaranteed value for every product supplied. During the final inspection of a product, only selected properties are analyzed, not all. Please note that some product characteristics may deteriorate with increasing operating time.
Downloads
Datasheet
Documentation
Documentation
User Manual PZ271
N-331 Piezoelectric Walking Drive PICMAWalk
Version / Date
1.1.5 2023-11-24
pdf - 2 MB
English
3D Models
3D Models
N-331 3D model
N-331 3D model
Version / Date
2024-06-27
zip - 2 MB
Ask for a free quote on quantities required, prices, and lead times or describe your desired modification.
N-331.13
PICMAWalk walking drive; 25 mm travel range; 50 N drive force; 12 mm/s maximum velocity; incremental linear encoder; 2 m cable length
N-331.20
PICMAWalk walking drive; 55 mm travel range (open loop); 50 N drive force; 12 mm/s maximum velocity; 2 m cable length
N-331.23
PICMAWalk walking drive; 50 mm travel range; 50 N drive force; 12 mm/s maximum velocity; incremental linear encoder; 2 m cable length
N-331.40
PICMAWalk walking drive; 105 mm travel range (open loop); 50 N drive force; 12 mm/s maximum velocity; 2 m cable length
N-331.43
PICMAWalk walking drive; 100 mm travel range; 50 N drive force; 12 mm/s maximum velocity; incremental linear encoder; 2 m cable length
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Digital technology opens up possibilities for improving performance in control engineering which do not exist with conventional analog technology.
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Hexapod platforms are used for precision positioning and alignment of loads in all six degrees of freedom, three linear axes, and three rotational axes.