Airtac MDJ Adjustable Cylinder MDJ25X25-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ25X25-20S 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 MDJ25X25-20S
The MDJ25X25-20S is an adjustable-stroke multi-mount cylinder with a compact square body that can be fixed from six directions: front, back, left, right, top and bottom. Bodies can be mounted side by side to save space, with magnetic-switch slots around the body and high guide precision without added lubricant. The 25 mm bore delivers about 245.4 N theoretical push thrust at 0.5 MPa in this double-acting cylinder, and cushioning is provided by a bumper, so it suits repeatable clamping and positioning where the final stroke position is set on the machine.
This is a genuine AirTAC part in the standard MD family (the MK family is the no-rotating counterpart). The trailing S means this SKU includes the magnet for switch detection. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s. Dimensions and sizing details for this stroke are per the datasheet; ask us and we will confirm them on request.
Airtac MDJ Adjustable Cylinder MDJ25X25-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ25X25-20S |
|---|---|
| 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
Choose the 25 mm bore when you need roughly 245.4 N theoretical push thrust at 0.5 MPa; smaller bores give less force. The MDJ adjustable-stroke variant gives a 25 mm base stroke plus a 20 mm adjustable range, so the effective stroke can be set between them on assembly. Double acting gives powered motion in both directions. This SKU carries the magnet (S) and a PT thread; a G thread version is available. Keep the stroke within the bore's table - the short covers limit over-long strokes - and confirm side-load capability with us before sizing.
Applications
Small-parts clamping
Bolt the square body from any of six directions to put a compact clamp jaw exactly where a fixture needs it, with the adjustable stroke setting the grip point per part.
Jig positioning
Mount cylinders side by side along a machining or assembly jig to advance positioners in sequence, with the 25 mm bore providing around 245.4 N of push at 0.5 MPa.
Adjustable end stops
Use the 20 mm adjustable range to set a precise stop position on an automation line without changing cylinders when the product size changes.
FAQ
What does the MDJ25X25-20S code mean and why choose adjustable stroke?
MDJ is AirTAC's adjustable-stroke double-acting multi-mount cylinder; 25 is the bore in mm, 25 is the base stroke, and -20 adds a 20 mm adjustable range on top. The trailing S means the magnet is included. Pick MDJ when the final stroke position must be set on the machine; fixed-stroke MD models are simpler when the stroke never changes.
How is this cylinder mounted and are dimensions available?
The square body fixes from six directions (front, back, left, right, top, bottom), so it can be mounted side by side to save space. Overall dimensions depend on the stroke, so confirm them from the datasheet, and check side-load limits with us before applying any lateral force.