Airtac MDJ Adjustable Cylinder MDJ25X15-20
The AirTAC Airtac MDJ Adjustable Cylinder MDJ25X15-20 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.
- TypeMulti-mount, adjustable stroke
- SeriesMD (standard)
- Bore25 mm
- Push thrust @0.5 MPa245.4 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port sizeM5x0.8
- CushionBumper
- MagnetWithout magnet
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MDJ Adjustable Cylinder MDJ25X15-20
The AirTAC MDJ25X15-20 is an adjustable-stroke multi-mount cylinder with a 25mm bore, a 15mm basic stroke and a 20mm adjustable range on top, so travel can be dialled in on the machine up to 35mm total. The compact square body fixes from 6 directions (front, back, left, right, top and bottom) and cylinders can sit side by side to save space, with magnetic-switch slots machined around the body. Double acting on air filtered to 40 um, it develops about 245.4 N of theoretical push force at 0.5 MPa, runs 30-500 mm/s, and the cushion is a bumper.
This is a genuine AirTAC part in the MD family, the standard multi-mount series where rod rotation is not prevented (choose the MK family if you need no-rotating). The SKU shows no magnet, so no switch magnet is fitted; the S version adds one. Operating pressure is 0.15-1.0 MPa (22-145 psi) and temperature is -20 to 70 C, or up to 150 C only with the optional high-temperature seal material. We confirm dimensions and sizing from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ25X15-20 Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ25X15-20 |
|---|---|
| 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 | 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.
How to choose
Pick the bore for thrust: at 0.5 MPa this 25mm bore gives 245.4 N push (206.2 N pull) in double acting form. MD is the standard multi-mount where rod rotation is allowed; MK prevents rotation. The MDJ variant adds a 10/20/30mm adjustable range above the basic stroke - here 20mm on a 15mm stroke. This SKU has no magnet; the S suffix adds one. The port is M5x0.8 with PT thread as standard (G available). Keep strokes within the bore's table - the short cover cautions against an over-long stroke - and confirm side-load limits with us.
Applications
Adjustable small-parts clamping
A fixture clamp that grips machined parts of slightly different heights: the 20mm adjustable range lets you fine-tune the 25mm bore's 245.4 N push so each part seats correctly without repositioning the body.
Conveyor gate stopper
Mounted under or beside a conveyor line, the cylinder extends to stop totes or pallets at a workstation; side-by-side mounting keeps several stoppers in a tight row under low guarding.
Jig slide positioning
Pushes a jig or slide to a set position before it is locked, with the 6-direction body fixing letting you bolt the cylinder from the top or side where frame space is tight.
FAQ
What does the code MDJ25X15-20 decode to?
MDJ is the adjustable-stroke double acting variant of AirTAC's MD multi-mount family: 25mm bore, 15mm basic stroke plus a 20mm adjustable range, no magnet, and PT port thread (M5x0.8 on this bore).
Where can I mount the body, and what limits the stroke?
The square body fixes from 6 directions - front, back, left, right, top or bottom - so cylinders sit side by side to save space. Keep the stroke within the bore's table, since the short cover cautions against over-long strokes, and confirm overall dimensions and side-load limits from the datasheet.