V-551 Precision Linear Stage

High Velocity and Precision due to Magnetic Direct Drive

Travel ranges to 230 mm
Velocity up to 0.5 m/s
High guiding accuracy
Compact design with 160 mm width

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V-551, view from below and side views, dimensions in mm

V-551, view from above and side views, dimensions in mm

XY setup of modified V-551 linear stages with 130 mm travel range and an optional drag chain

An XYZ assembly consisting of three V-551 linear stages each with 60 mm travel range. The Z axis was modified and has magnetic compensation of the weight force.

Reference-class linear positioner

Thanks to the smooth-running precision linear guides with crossed roller bearings, the linear positioner is particularly suitable for scanning applications with constant velocity. The anti-creep system reliably prevents cage creep. The guides have high load capacity and high precision under all operating conditions.

Linear motors

Linear motors are electromagnetic direct drives. They dispense with mechanical components in the drivetrain and transfer the drive force directly and friction-free to the motion platform. The drives reach high velocities and accelerations. Ironless motors are particularly suitable for positioning tasks with the highest demands on precision because there is no undesirable interaction with the permanent magnets. This allows smooth running even at the lowest velocities and at the same time, there is no vibration at high velocities. Nonlinearity in control behavior is avoided and any position can be controlled easily. The drive force can be set freely.

Direct position measuring

Position measuring is performed with the highest accuracy directly at the motion platform so that nonlinearity, mechanical play or elastic deformation have no influence on position measuring. Position measuring is performed with the highest accuracy directly at the motion platform so that nonlinearity, mechanical play or elastic deformation have no influence on position measuring. The stages are equipped with absolute encoders. They supply explicit position information that enables immediate determination of the position. This means that referencing is not required during switch-on, which increases efficiency and safety during operation.

Application fields

Industry and research. Automation. Metrology. Photonics and precision scanning in semiconductor or flat panel display manufacturing

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Datasheet

Version / Date

2025-05-20

pdf - 943 KB

Version / Date

2025-05-20

pdf - 949 KB

Version / Date

2019-02-08

pdf - 1 MB

Version / Date

2019-07-17

pdf - 1 MB

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Select a travel range:

Motion	V-551.2B	V-551.4B	V-551.7B	Tolerance
Active axes	X	X	X
Travel range in X	60 mm	130 mm	230 mm
Maximum velocity in X, unloaded	500 mm/s	500 mm/s	500 mm/s
Straightness error in Y (straightness)	± 1 µm	± 1 µm	± 2 µm	typ.
Straightness error in Z (flatness)	± 2 µm	± 2 µm	± 2 µm	typ.
Angular error around Y (pitch)	± 50 µrad	± 100 µrad	± 100 µrad	typ.
Angular error around Z (yaw)	± 50 µrad	± 50 µrad	± 50 µrad	typ.
Positioning	V-551.2B	V-551.4B	V-551.7B	Tolerance
Minimum incremental motion in X	0.002 µm	0.002 µm	0.002 µm	typ.
Unidirectional repeatability in X	± 0.01 µm	± 0.01 µm	± 0.01 µm	typ.
Bidirectional repeatability in X	0.1 µm	0.1 µm	0.1 µm	typ.
Reference switch	—	—	—
Limit switches	Hall effect, N/O contact, 5 V, TTL	Hall effect, N/O contact, 5 V, TTL	Hall effect, N/O contact, 5 V, TTL
Integrated sensor	Absolute linear encoder	Absolute linear encoder	Absolute linear encoder
Sensor signal	BiSS-C	BiSS-C	BiSS-C
Sensor signal period	—	—	—
Sensor resolution	1 nm	1 nm	1 nm
Drive Properties	V-551.2B	V-551.4B	V-551.7B	Tolerance
Drive type	Ironless 3-phase linear motor	Ironless 3-phase linear motor	Ironless 3-phase linear motor
Nominal voltage	48 V	48 V	48 V
Nominal current, RMS	1.5 A	1.5 A	1.5 A	typ.
Peak current, RMS	10 A	10 A	10 A	typ.
Drive force in X	27 N	27 N	27 N	typ.
Peak force in X	180 N	180 N	180 N
Force constant	18 N/A	18 N/A	18 N/A
Resistance phase-phase	5.4 Ω	5.4 Ω	5.4 Ω	typ.
Inductance phase-phase	1.8 mH	1.8 mH	1.8 mH
Back EMF	16 V·s/m	16 V·s/m	16 V·s/m	max.
Pole pitch N-N	30 mm	30 mm	30 mm
Mechanical Properties	V-551.2B	V-551.4B	V-551.7B	Tolerance
Permissible push force in Y	50 N	50 N	50 N	max.
Permissible push force in Z	150 N	150 N	150 N	max.
Moved mass in X, unloaded	2200 g	2700 g	4900 g
Guide	Crossed roller guide	Crossed roller guide	Crossed roller guide
Overall mass	4200 g	5500 g	9700 g
Material	Aluminum, black anodized	Aluminum, black anodized	Aluminum, black anodized
Miscellaneous	V-551.2B	V-551.4B	V-551.7B	Tolerance
Operating temperature range	5 to 40 °C	5 to 40 °C	5 to 40 °C
Connector	HD D-sub 26 (m)	HD D-sub 26 (m)	HD D-sub 26 (m)
Sensor connector	D-sub 15 (f)	D-sub 15 (f)	D-sub 15 (f)
Recommended controllers/drivers	C-891, C-885 with C-891.10C885, A-811.CE, G-901	C-891, C-885 with C-891.10C885, A-811.CE, G-901	C-891, C-885 with C-891.10C885, A-811.CE, G-901

Note on sensor resolution: interpolated

Note on minimum incremental motion: With ACS NanoPWM

Connecting cables are not included in the scope of delivery and must be ordered separately.

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.

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Datasheet

Version / Date

2025-05-20

pdf - 943 KB

Version / Date

2025-05-20

pdf - 949 KB

Version / Date

2019-02-08

pdf - 1 MB

Version / Date

2019-07-17

pdf - 1 MB

Télécharger

Documentation

V-551.xD Precision Translation Stage

Version / Date

1.1.3 2020-06-12

pdf - 2 MB

Version / Date

1.1.3 2020-06-12

pdf - 2 MB

Documentation

Positioners with Magnetic Linear Motor: V-308 / V-408 / V-508 / V-52x / V-551 / V-610 / V-73x / V-741

Version / Date

4.1.0 06/2023

pdf - 419 KB

Version / Date

4.1.0 06/2023

pdf - 419 KB

Télécharger

Documentation

V-551.xB Precision Translation Stage

Version / Date

1.0.4 2020-06-12

pdf - 2 MB

Version / Date

1.0.4 2020-06-12

pdf - 2 MB

3D Models

zip - 6 MB

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Ask for a free quote on quantities required, prices, and lead times or describe your desired modification.

V-551.2B

Precision linear stage, 160 mm width, 60 mm travel range, 150 N load capacity, absolute encoder, 1 nm sensor resolution, ironless 3-phase linear motor

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V-551.4B

Precision linear stage, 160 mm width, 130 mm travel range, 150 N load capacity, absolute encoder, 1 nm sensor resolution, ironless 3-phase linear motor

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V-551.7B

Precision linear stage, 160 mm width, 230 mm travel range, 150 N load capacity, absolute encoder, 1 nm sensor resolution, ironless 3-phase linear motor

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