
The AirTAC Airtac MDJ Adjustable Cylinder MDJ25X60-20S is a genuine MD multi-mount cylinder (adjustable stroke), 25 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 245.4 N of push force at 0.5 MPa. A bumper cushions the impact.
The MDJ25X60-20S is an adjustable-stroke, double acting AirTAC multi-mount cylinder with a 25 mm bore, 60 mm stroke and an extra 20 mm adjustable range, letting you set the effective stroke without swapping the body. The square housing can be fixed from 6 directions (front, back, left, right, top and bottom), so units sit side by side to save space, with magnetic-switch slots around the body and high guide precision. Running at 0.15-1.0 MPa (22-145 psi) on filtered air, it develops about 245.4 N of theoretical push thrust at 0.5 MPa on the push side and is cushioned by a bumper for a soft end of stroke.
This is a genuine AirTAC part in the MD family, the standard series where rod rotation is allowed; if your application needs the rod held from turning, choose the MK series instead. The trailing S in the code means this SKU carries the magnet for magnetic-switch sensing, and the default PT thread is fitted. We will confirm dimensions and sizing from the datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ25X60-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 25 mm |
| Push thrust @0.5 MPa | 245.4 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 25 mm bore when your fixture needs roughly 245.4 N of push thrust at 0.5 MPa; smaller bores deliver less force. Choose the MD standard series when rod rotation is acceptable, and an MK series if rotation must be prevented. Acting type options include double acting, single push, single pull, double rod and this adjustable-stroke type; MDJ gives a 10, 20 or 30 mm adjustable range on top of the base stroke, so the 20 mm here extends the 60 mm stroke. The 60 mm stroke sits at the top of this bore's table, so keep it within the short-cover limit and confirm any overhung side-load with us. Order with the magnet (S) for switch sensing, and select the G thread if your piping is not PT.
Mount the cylinder to the side or underside of a fixture to clamp small parts in a compact machining or assembly cell, using the adjustable stroke to set the exact clamp position.
Fix the body top or bottom through the line frame to raise and lower a stopper blade, with the bumper cushion easing the part into position; the magnet allows end-position sensing.
Bolt units side by side on a compact slide or gantry to drive horizontal pick-and-place moves where panel space is tight and the standard 60 mm stroke covers the transfer length.
MDJ is the adjustable-stroke version of the MD series. The 60 mm is the base stroke and the trailing 20 mm is the adjustable range added on top, so you can set the effective stroke anywhere within that extra travel. The S shows this SKU includes the magnet.
The bumper cushions the stroke, but side-load capability depends on the bore and installation and is not quoted here. Send us your application details and we will confirm the allowable side-load and mounting dimensions from the datasheet.