
The AirTAC Airtac MDJ Adjustable Cylinder MDJ20X70-10S is a genuine MD multi-mount cylinder (adjustable stroke), 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 MDJ20X70-10S is an AirTAC multi-mount cylinder with an adjustable stroke: a compact square body you can fix from 6 directions (front, back, left, right, top or bottom) and mount side by side to save space. This unit is double acting with a 20 mm bore, a 70 mm base stroke and a 10 mm adjustable range, giving about 157.1 N of theoretical push at 0.5 MPa. Cushioning is a bumper, and magnetic-switch slots run around the body, so position switches can be clamped anywhere along it.
This is a genuine AirTAC part in the standard MD family; the MK family adds a no-rotating plate for jobs where the rod must not turn. As coded, the trailing S means this SKU includes a magnet. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), from -20 to 70 C (up to 150 C only with the optional high-temperature seal material). We confirm dimensions and sizing from the datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ20X70-10S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| 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.
Pick the 20 mm bore when you need about 157.1 N of push at 0.5 MPa (the pull side gives less). Choose MD when rod rotation is allowed, or MK when it must be prevented. Acting types are double acting, single push (MSD), single pull (MTD), double rod (MDD) and adjustable stroke (MDJ, this model). Strokes stay short on this compact body, so check an over-long stroke against the datasheet before committing; the MDJ adds a 10, 20 or 30 mm adjustable range on top of the base stroke. This SKU carries the magnet (S); order the version without S if you do not need switch detection. Select the thread as PT or G.
The built-in magnet lets reed or Hall switches report end positions on a compact transfer stroke, with the body fixed from any of 6 faces.
Clamp small components in assembly jigs; the 10 mm adjustable range sets exact squeeze travel and the bumper softens the clamp hit.
Line units up side by side to index parts between stations, switching stroke-end signals from the magnet at each stop.
The magnet is an option on the MD family, and this SKU includes it: the trailing S in MDJ20X70-10S marks a magnet-equipped cylinder for magnetic-switch detection. The same code without S is supplied without a magnet.
Strokes on multi-mount cylinders stay short relative to the square cover, so an over-long stroke such as 70 mm deserves a datasheet check for your fixture. Side-load capability and per-stroke dimensions should also be confirmed from the datasheet.