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M-238 High-Load Linear Actuator with DC Motor

Dynamic, High-Resolution Precision Drive

M-238.5PG
    • Optional linear encoder for exceptional precision
    • High load capacity to 400 N
    • Travel range 50 mm
    • Resolution to 0.1 µm
    • Velocity to 30 mm/s
    • Preloaded frictionless ball screw
    • Vacuum-compatible version down to 10-6 hPa on request

Reference-class linear drive

High-load precision linear actuator. Highly dynamic, closed-loop DC motors for high velocities. Vacuum-compatible versions to 10-6 hPa are available

High-quality components

Recirculating ball screw provides high velocity and long lifetime. Low-friction output shaft bearing can handle lateral forces to 100N. Nonrotating end piece for uniform motion prevents wobble, torque, and wear at the point of contact. Includes flat and spherical end piece for decoupling of lateral and tilt forces. Noncontact limit switches protect the mechanical system. A direction-sensing reference point switch supports automation applications

Variants of position measurement

  • High-resolution rotary encoder
  • Direct metrology: noncontact linear encoder measures the current position with 0.1 µm resolution and removes inaccuracies in the drivetrain

Specifications

M-238.5PG

M-238.5PL

Unit

Tolerance

Rotary encoder on motor shaft

Highest precision with linear encoder

Motion and positioning

Travel range

50

50

mm

Integrated sensor

Rotary encoder

Linear encoder

Sensor resolution

4000 cts/rev

0.1 µm

Design resolution

0.13

0.1

µm

typ.

Min. incremental motion

0.5

0.3

µm

typ.

Backlash

3

1

µm

typ.

Unidirectional repeatability

1

0.3

µm

typ.

Velocity

30

30

mm/s

max.

Reference point switch repeatability

1

1

µm

typ.

Mechanical properties

Thread pitch

2

2

mm

Gear ratio

3.71:1

3.71:1

Push / pull force

400

400

N

max.

Permissible lateral force

100

100

N

max.

Drive properties

Motor type

DC motor, ActiveDrive

DC motor, ActiveDrive

Motor voltage

24 V (PWM)

24 V (PWM)

V

Electrical power

80

80

W

nominal

Miscellaneous

Operating temperature range

-10 to 50

-10 to 50

°C

Material

Aluminum anodized, chrome steel

Aluminum anodized, chrome steel

Mass

2.4

2.4

kg

±5 %

Cable length

3

3

m

±10 mm

Connector

Sub-D, 15-pin

Sub-D, 15-pin

Recommended controller / driver

C-863 single-axis

C-843 PCI board, for up to 4 axes

C-863 single-axis

C-843 PCI board, for up to 4 axes

Ask about custom designs!

Drawings / Images

PI M-238 Drawing PI M-238.5PL Diagramm PI M-238 Drawing PI M-238 Diagramm

Order Information

M-238.5PGHigh-Load Linear Actuator, 400 N, 50 mm, DC Gear Motor, ActiveDrive

M-238.5PLHigh-Load Linear Actuator, 400 N, 50 mm, DC Gear Motor, ActiveDrive, Direct Metrology


Ask about custom designs!

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Controllers / Drivers / Amplifiers

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Downloads

fileadmin/images/filelist/pdf.png User Manual MP77E
M-238 High-Load Linear Actuator
PDF 349 K 1.0.0 EN
fileadmin/images/filelist/pdf.png PI Datasheet M-238
High-Load Linear Actuator with DC Motor Dynamic, High-Resolution Precision Drive
PDF 877 K
fileadmin/images/filelist/zip.png M-238 STEP
ZIP 648 K