
The AirTAC Airtac MD Multi-Position Clamping Cylinder MD20X50S 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.
The MD20X50S is an AirTAC MD multi-mount cylinder: a compact square-body, double-acting pneumatic cylinder that fixes from 6 directions (front, back, left, right, top and bottom) and mounts side by side with neighbors to save space. Magnetic-switch slots run around the body for easy sensing. With its 20 mm bore and 50 mm stroke, this model delivers a theoretical push thrust of 157.1 N at 0.5 MPa and cushions through a bumper, suiting it to compact clamping and positioning tasks in tight machine layouts.
This is a genuine AirTAC part. The MD family is the standard multi-mount design; if you need the piston rod prevented from turning, look to the MK no-rotating family instead. The trailing S in this SKU means the cylinder is supplied with a magnet for switch detection. We confirm dimensions and sizing from the datasheet on request.
| Model | Airtac MD Multi-Position Clamping Cylinder MD20X50S |
|---|---|
| Type | Multi-mount cylinder, double acting |
| Series | MD (standard) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper |
| Mounting | Fix 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.
Choose the bore by thrust: at 0.5 MPa a 20 mm bore double-acting cylinder gives 157.1 N push and 131.9 N pull - size up or down from there. MD allows rod rotation; MK prevents it. Acting choices are double acting (MD), single-acting push (MSD), single-acting pull (MTD), double rod (MDD) or adjustable stroke (MDJ). This 50 mm stroke fits the bore 20 table, which runs up to 60 mm - the short covers caution against specifying an over-long stroke, so keep the stroke as short as the job allows. A trailing S adds the magnet; PT thread is default, G is optional. Route side-load questions to us.
The 20 mm bore and 157.1 N push at 0.5 MPa make this a compact clamp for holding small parts in fixtures, with the square body fixable from 6 directions wherever space is tight.
Mount several MD20X50S cylinders side by side on a jig to position workpieces at multiple points from one compact body bank, with magnetic-switch slots for repeat detection.
Use the 50 mm stroke to eject or lightly press small components at an assembly station, relying on the bumper cushion at each end of travel.
The trailing S indicates the cylinder is supplied with a magnet, which lets you detect piston position with magnetic switches in the body slots. A model code without S is supplied without a magnet; the magnet is an option, not a standard feature, so order the S version if you need sensing.
The square multi-mount body fixes from 6 directions - front, back, left, right, top and bottom - and cylinders can be mounted side by side to save space. Keep the stroke within the bore's table since the short covers limit over-long strokes, and confirm side-load capacity and overall dimensions from the datasheet.