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M-235 High-Resolution Linear Actuator with DC Motor

Highly Dynamic, High Forces up to 120 N

PI M-235.5DG
    • Travel ranges 20 and 50 mm
    • Min. incremental motion to 0.1 µm
    • Direct drive provides high velocities
    • Push / pull force capacity to 120 N
    • MTBF >10,000 h
    • Preloaded frictionless ball screw
    • Vacuum-compatible version down to 10-6 hPa

Reference-class linear drive

Combines high precision, high forces, and high dynamics. Vacuum-compatible versions to 10-6 hPa are available

High-quality components

Recirculating ball screw provides high velocity and long lifetime. 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. Closed-loop variants with differential encoder driver for a safe position signal transmission at distances up to 10 mm

Motor variants

  • Highly dynamic, closed-loop DC motors reach high velocities
  • Position-controlled DC motors with a gearhead and high-resolution rotary encoders allow for incremental motion of just 100 nm
  • Powerful and low-vibration 2-phase stepper motors allow for accurate positioning even without position control. With handwheel

Specifications

M-235.2DG /
M-235.5DG

M-235.2DD /
M-235.5DD

M-235.22S /
M-235.52S

Unit

Tolerance

High resolution and force, DC gear motor

High dynamics

With stepper motor

Motion and positioning

Travel range

20 / 50

20 / 50

20 / 50

mm

Integrated sensor

Rotary encoder

Rotary encoder

Sensor resolution

2048

2048

cts./rev.

Design resolution

0.016

0.5

0.156

µm

typ.

Min. incremental motion

0.1

0.5

0.2

µm

typ.

Backlash

2

2

2

µm

typ.

Unidirectional repeatability

±0.1

±0.5

±0.2

µm

typ.

Velocity

2.6

30

20

mm/s

max.

Mechanical properties

Gear ratio

29.6:1

Motor resolution

6400*

steps/rev.

Push / pull force

120

50

100**

N

max.

Permissible lateral force

8

8

8

N

max.

Drive properties

Motor type

DC motor, gearhead

DC motor

2-phase stepper motor*

Operating voltage

0 to ±12

0 to ±12

24

V

Electrical power

4

17

W

nominal

Limit and reference point switches

Hall-effect

Hall-effect

Hall-effect

Miscellaneous

Operating temperature range

-20 to 65

-20 to 65

-20 to 65

°C

Material

Aluminum anodized, chrome steel

Mass

0.55 / 0.7

0.5 / 0.65

0.65 / 0.8

kg

±5 %

Cable length

0.5 + 3 m extension cable (included)

m

±10 mm

Connector

15-pin sub-D, incl. encoder driver

15-pin sub-D, incl. encoder driver

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

C-663 single-axis

Specifications for vacuum versions can differ.
Ask about custom designs!

* 24 V chopper voltage, max. 0.8 A/phase; 400 full steps/rev., motor resolution with C-663 stepper motor controller.
** At a velocity of up to 10 mm/s.

Drawings / Images

PI M-235 Drawing PI M-235 Drawing PI M-235 Drawing PI M-235.52S

Order Information

M-235.2DDHigh-Power Linear Actuator, 20 mm, Ball Screw, Direct-Drive DC Motor

M-235.5DDHigh-Power Linear Actuator, 50 mm, Ball Screw, Direct-Drive DC Motor

M-235.2DGHigh-Power Linear Actuator, 20 mm, Ball Screw, DC Gear Motor

M-235.5DGHigh-Power Linear Actuator, 50 mm, Ball Screw, DC Gear Motor

M-235.22SHigh-Power Linear Actuator, 20 mm, Ball Screw, Stepper Motor

M-235.52SHigh-Power Linear Actuator, 50 mm, Ball Screw, Stepper Motor

 

Vacuum versions

M-235.2VDHigh-Power Linear Actuator, 20 mm, Ball Screw, Direct-Drive DC Motor, Vacuum Compatible to 10-6 hPa

M-235.5VDHigh-Power Linear Actuator, 50 mm, Ball Screw, Direct-Drive DC Motor, Vacuum Compatible to 10-6 hPa

M-235.2VGHigh-Power Linear Actuator, 20 mm, Ball Screw, DC Gear Motor, Vacuum Compatible to 10-6 hPa

M-235.5VGHigh-Power Linear Actuator, 50 mm, Ball Screw, DC Gear Motor, Vacuum Compatible to 10-6 hPa


Ask about custom designs!

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Controllers / Drivers / Amplifiers

Related Products

Articles and Links

Downloads

fileadmin/images/filelist/pdf.png User Manual MP106E
M-235 Linear Actuators
PDF 594 K 1.1.0 EN
fileadmin/images/filelist/pdf.png PI Datasheet M-235
High-Resolution Linear Actuator with DC Motor Highly Dynamic, High Forces up to 120 N
PDF 902 K
fileadmin/images/filelist/zip.png M-235 STEP
ZIP 1 M