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AirTAC MD20 · Multi-Mount Cylinder (standard)

Airtac MD Multi-Position Clamping Cylinder MD20X40SH

The AirTAC MD Multi-Position Clamping Cylinder MD20X40SH is a genuine MD multi-mount cylinder (double acting), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 N of push force at 0.5 MPa. A bumper cushions the impact.

  • TypeMulti-mount, double acting
  • SeriesMD (standard)
  • Bore20 mm
  • Push thrust @0.5 MPa157.1 N
  • Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
  • Port sizeM5x0.8
  • CushionBumper
  • MagnetWith magnet (sensor-ready)
  • ThreadPT
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About the Airtac MD Multi-Position Clamping Cylinder MD20X40SH

The AirTAC MD20X40SH is a compact multi-mount cylinder with a square body that fixes from 6 directions: front, back, left, right, top and bottom. Bodies can be mounted side by side to save space in dense machine layouts, and magnetic-switch slots run around the body. This version is double acting with a 20 mm bore and 40 mm stroke, giving about 157.1 N of theoretical push at 0.5 MPa, cushioned by a bumper. The working medium is air filtered to 40 um, proof pressure is 1.5 MPa (215 psi), and operating pressure is 0.15-1.0 MPa (22-145 psi).

This is a genuine AirTAC part from the standard MD family, where rod rotation is not prevented; choose the MK family if you need a no-rotating rod. The trailing S means a magnet is built in, and the trailing G specifies G-thread ports instead of the PT default. Operating temperature is -20 to 70 C, or up to 150 C only with the optional high-temperature seal material. Ask us to confirm dimensions and sizing details from the datasheet.

Airtac MD Multi-Position Clamping Cylinder MD20X40SH Technical Specifications

ModelAirtac MD Multi-Position Clamping Cylinder MD20X40SH
TypeMulti-mount cylinder, double acting
SeriesMD (standard)
Bore20 mm
Push thrust @0.5 MPa157.1 N
Port sizeM5x0.8 (PT thread)
MagnetWith magnet (S)
FluidAir, filtered to 40 um
Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
Proof pressure1.5 MPa (215 psi)
Temperature-20 to 70 C
Speed range30 - 500 mm/s
CushionBumper
MountingFix from 6 directions; mountable side by side

Specifications follow the official AirTAC MD/MK multi-mount data. The front cover and piston are short, so avoid an over-long stroke. An optional high-temperature seal material extends the range to 0 to 150 C. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.

How to choose

At 0.5 MPa this 20 mm bore produces about 157.1 N of theoretical push (the push side exceeds the pull side) across a 0.15-1.0 MPa operating range. If your design must stop the rod turning, step up to the MK family; MD is the standard multi-mount choice. Acting variants include double acting (MD), single push (MSD), single pull (MTD), double rod (MDD) and adjustable stroke (MDJ).

The 40 mm stroke sits comfortably inside the 60 mm limit for a 20 mm double-acting bore; the short covers caution against specifying an over-long stroke. The magnet is shown by the trailing S, and this SKU uses G ports at M5x0.8 rather than PT. For side-load limits and exact installed dimensions, check with us against the datasheet.

Applications

swap_horiz

Pick-and-place slides

Fix the body from the top or side of a small transfer unit and use the 40 mm stroke to push parts between pick and place positions, with the bumper absorbing each end of travel.

compress

Press-fit and staking

Mount the cylinder under a small bench fixture and apply about 157.1 N of push at 0.5 MPa to seat pins, labels or light press-fit components.

engineering

Test fixture actuation

Arrange MD20X40SH units side by side on a test rig to actuate probes or clamps, with the magnet (trailing S) and body switch slots reporting cylinder position.

FAQ

What is the difference between MD20X40SH and MD20X40S?

Both are 20 mm bore, 40 mm stroke, double-acting multi-mount cylinders with a built-in magnet. The trailing G on MD20X40SH specifies G-thread air ports, while MD20X40S uses the PT thread default. Pick the thread that matches your fittings and regional piping standard.

Is there a limit on how long the stroke can be?

For a 20 mm bore double-acting MD cylinder the standard stroke range tops out at 60 mm, and the compact short-cover design means an over-long stroke should be avoided. This SKU is 40 mm. Confirm exact body dimensions for your stroke from the datasheet.