
The AirTAC Airtac MDJ Adjustable Cylinder MDJ16X50-40 is a genuine MD multi-mount cylinder (adjustable stroke), 16 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 100.5 N of push force at 0.5 MPa. A bumper cushions the impact.
The MDJ16X50-40 is an AirTAC MD-family multi-mount cylinder: a compact square-body, double-acting actuator that can be fixed from six directions (front, back, left, right, top and bottom) and mounted side by side with neighbouring cylinders to save space on the machine frame. With a 16mm bore and a 50mm stroke plus the adjustable range shown in the code, it delivers about 100.5 N of theoretical push force at 0.5 MPa, suited to light clamping, positioning and push-off jobs. Cushioning is a bumper, and magnetic-switch slots run around the body for position sensing. As a genuine AirTAC part in the MD family, this is the standard (rotation-allowed) variant; the no-rotating equivalent is the MKJ series. This SKU does not include a magnet. Operating range is 0.15-1.0 MPa (22-145 psi) on filtered air, and we confirm exact dimensions, adjustable-range limits and sizing from the datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ16X50-40 |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 16 mm |
| Push thrust @0.5 MPa | 100.5 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | Without magnet |
| 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 16mm bore when your job needs roughly 100.5 N of push at 0.5 MPa (the pull side is lower); step up or down a bore if you need more or less thrust. Pick MDJ if the stroke must be fine-tuned on the machine - the number after the hyphen in the code is the adjustable range on top of the base stroke - or plain MD/MK if a fixed stroke is fine. MD allows rod rotation; MK prevents it with a no-rotating plate. Acting type here is double acting, so the rod is driven both ways by air. This SKU has no magnet (no S suffix) and PT thread; a magnet version (S) and G thread are available. Note the short covers of multi-mount bodies: keep the stroke within the bore's table rather than stretching it, and route side-load questions to us.
Bolted top or bottom on a compact fixture, the 16mm bore grips small machined or moulded parts with about 100.5 N of push at 0.5 MPa while leaving adjacent stations free for side-by-side cylinders.
Fixed through the side of a jig, the adjustable stroke lets you trim the exact dwell point of a locator pin without re-machining the jig body.
Mounted left or right behind a guarding panel, the cylinder pushes a small slide or gate open and closed, with the bumper cushioning each end of travel.
On MDJ adjustable-stroke cylinders the base stroke follows the X (50mm here) and the number after the hyphen is the adjustable range added on top of it, letting you set the effective stroke within that window. Confirm the total-stroke limit for this bore from the datasheet before ordering.
Six: front, back, left, right, top and bottom. That lets you pick whichever face suits the fixture, and the square body lets cylinders sit side by side to save space. Because the covers are short, avoid stretching the stroke beyond the bore's table, and ask us for datasheet figures on dimensions and side-load.