
The AirTAC Airtac MDJ Adjustable Cylinder MDJ20X5-10 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 MDJ20X5-10 is a compact square-body multi-mount cylinder that can be fixed from six directions - front, back, left, right, top and bottom - and mounted side by side to save space. With a 20 mm bore, double-acting operation, a short 5 mm stroke plus a 10 mm adjustable range, it delivers about 157.1 N of theoretical push at 0.5 MPa, ideal for short-throw marking, indexing or clamping where only a few millimetres of travel is needed. Cushioning is a bumper, and magnetic-switch slots surround the body.
This is a genuine AirTAC part. MD is the standard multi-mount family, while the MK family adds a no-rotating plate that stops the rod turning. This SKU has no magnet suffix, so it is built without a magnet; overall dimensions and sizing are per stroke and we confirm them from the datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ20X5-10 |
|---|---|
| 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 | 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 bore for thrust: this 20 mm bore gives about 157.1 N of push at 0.5 MPa, against 245.4 N for the 25 mm bore. MD lets the rod rotate; MK prevents rotation. Acting options are double acting, single push (MSD), single pull (MTD), double rod (MDD) and adjustable stroke (MDJ). Strokes for the 20 mm bore run up to 60 mm, and this MDJ pairs a 5 mm base stroke with a 10 mm adjustable range - the short covers suit only short strokes, so do not stretch beyond the table. No S suffix means no magnet. Ports are M5x0.8 with PT thread standard and G optional; send side-load questions to us.
Clamp small components that need only a few millimetres of travel: the 20 mm bore gives about 157.1 N of push at 0.5 MPa over a 5 mm stroke with 10 mm of adjustment.
Raise and lower an indexing or locking pin in a compact machine station, fixing the square body from the top, bottom or side of the plate as the layout demands.
Drive a probe, marker or contact point in a bench fixture where cylinders mount side by side and the adjustable range trims the contact depth exactly.
No. The code has no trailing S, so this model is built without a magnet. If you need magnetic-switch detection, choose the same cylinder with an S suffix, such as MDJ20X5-10S.
A 5 mm base stroke plus a 10 mm adjustable range on top. That makes it suitable for very short-throw jobs; for longer travel, move up the MDJ stroke table (20 mm bore strokes run to 60 mm) and confirm dimensions from the datasheet.