
The AirTAC MDJ Adjustable Cylinder MDJ20X60-50S is a genuine MD multi-mount cylinder (double rod, 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 MDJ20X60-50S is an AirTAC MD-series multi-mount cylinder, a compact square-body actuator that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side to save space. This adjustable-stroke, double-acting version carries a 20 mm bore with a 60 mm stroke and an additional 50 mm adjustable range, offering about 157.1 N of theoretical push thrust at 0.5 MPa for light clamping and positioning tasks. Cushioning is by bumper, and magnetic-switch slots are built around the body.
This is a genuine AirTAC part. The MD family is the standard multi-mount design, whereas the MK family adds a no-rotating plate to prevent rod rotation. As the SKU shows, this model includes a magnet. We can confirm dimensions and sizing from the datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ20X60-50S |
|---|---|
| Type | Multi-mount cylinder, double rod, 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.
Go with MD if rod rotation is acceptable, or an MK model if it must be prevented. Acting type: this MDJ is double acting with an adjustable stroke, adding a 50 mm adjustable range on top of the 60 mm stroke; the 60 mm stroke tops out the bore 20 table, and the short cover cautions against an over-long stroke, so check the envelope before ordering. The trailing S means this SKU includes a magnet; thread is PT, with G available as an option. Side-load capacity depends on the installation, so route that question to us.
Fix the square body from the side of a fixture and use the bumper-cushioned rod to square up parts before processing, with the adjustable range covering part variation.
Mount the cylinder on the top or bottom face of a compact gate assembly and use the 60 mm stroke plus adjustable range to set gate open travel without redesigning the bracket.
Arrange cylinders side by side on a multi-station fixture, using the 20 mm bore's push thrust and the adjustable range to index parts between stations at matched heights.
MDJ marks the adjustable-stroke version of the MD double-acting multi-mount cylinder, 20 is the bore in mm, 60 is the stroke in mm, -50 is the 50 mm adjustable range added on top of the stroke, and the trailing S shows the cylinder includes a magnet. Thread is PT by default, with G available as an option.
The short cover of the multi-mount body cautions against fitting an over-long stroke, and the 60 mm stroke here is already at the top of the bore 20 table. If in doubt about your layout, side-load conditions or exact dimensions, confirm from the datasheet or ask us before ordering.