Airtac MDJ Adjustable Cylinder MDJ25X70-10S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ25X70-10S 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
- MagnetWith magnet (sensor-ready)
- 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 MDJ25X70-10S
The MDJ25X70-10S is an AirTAC MDJ adjustable-stroke multi-mount cylinder, a compact square-body pneumatic cylinder that fixes from 6 directions - front, back, left, right, top and bottom - and mounts side by side to save space. With a 25 mm bore, 70 mm base stroke and a further adjustable stroke range, it suits jobs where the last few millimetres of travel must be fine-tuned on the machine. Double acting at 0.5 MPa it delivers a theoretical push thrust of 245.4 N, and the bumper cushion absorbs end-of-stroke impact.
This is a genuine AirTAC part from the MD family, the standard multi-mount series where the rod is free to rotate; if you need rotation prevented, the MK no-rotating family is the alternative. The trailing S in the code means this SKU carries a magnet for magnetic-switch detection. We confirm exact dimensions and sizing from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ25X70-10S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ25X70-10S |
|---|---|
| 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.
How to choose
Bore sets the thrust: at 0.5 MPa this 25 mm bore gives 245.4 N theoretical push (206.2 N pull) in double acting use - step up to 32 mm for 402.1 N push or down to 20 mm for 157.1 N if space allows. Choose MD if rod rotation is acceptable; choose MK if it must be prevented. Acting type options are double acting, single push (MSD), single pull (MTD), double rod (MDD) or adjustable-stroke (MDJ, as here, which adds an adjustable range on top of the base stroke). The trailing S means a magnet is fitted; omit it if no sensing is needed. Ports are M5x0.8 on this bore, threaded PT by default or G on request. Note the short body: keep stroke within the datasheet table and avoid over-long strokes - confirm this 70 mm stroke availability from the datasheet; for side-load limits, ask us.
Applications
Fine-adjust press or forming station
The 10 mm adjustable range lets a press or forming head dial in the final few millimetres of travel, with the 25 mm bore giving 245.4 N of push at 0.5 MPa for light forming work.
Jig positioning in a machining cell
Fixed from any of 6 directions on the jig body, the cylinder locates workpieces at a tunable position, so datum offsets are corrected on the machine without swapping actuators.
Indexing a dial or carousel table
Mounted under the table edge, the cylinder indexes the dial to the next station while magnetic-switch slots around the body confirm position in a compact side-by-side layout.
FAQ
What does the MDJ25X70-10S code mean?
MDJ is the adjustable-stroke version of AirTAC's MD multi-mount family, 25 is the bore in mm, 70 is the base stroke in mm and 10 is the adjustable stroke range, giving fine tuning of the last 10 mm of travel. The trailing S means the cylinder carries a magnet for magnetic-switch detection, and with no trailing G the ports are PT threaded (M5x0.8 on this bore).
How does the 6-direction mounting work in a tight machine layout?
The square body fixes from front, back, left, right, top and bottom, so the cylinder can be bolted on whichever face the machine frame offers, and several units can sit side by side to save space. Because the body is short, keep the stroke within the datasheet table rather than over-long; exact dimensions and side-load limits should be confirmed from the datasheet.