Airtac MDJ Adjustable Cylinder MDJ25X30-20
The AirTAC Airtac MDJ Adjustable Cylinder MDJ25X30-20 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 MDJ25X30-20
The MDJ25X30-20 is an AirTAC multi-mount cylinder in the MDJ adjustable-stroke variant: a compact square-body, double acting cylinder that fixes from 6 directions (front, back, left, right, top and bottom) and mounts side by side to save space. Its 25mm bore provides 245.4 N theoretical push thrust at 0.5 MPa, the 30mm base stroke carries a 20mm adjustable range, and double acting operation gives powered strokes in both directions with a bumper as the cushion. Magnetic-switch slots around the body support position detection.
This is a genuine AirTAC part in the standard MD family (MK is the separate no-rotating line). This SKU is supplied without a magnet and with PT threads; the magnet and G threads are options on other SKUs. Overall dimensions vary with stroke, so we confirm sizing and datasheet details on request.
Airtac MDJ Adjustable Cylinder MDJ25X30-20 Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ25X30-20 |
|---|---|
| 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
Choose the bore by thrust need: this 25mm double acting unit gives roughly 245.4 N theoretical push at 0.5 MPa. Use MD where rod rotation is allowed and MK where it must be prevented. Acting options include double acting, single acting push (MSD), single acting pull (MTD), double rod (MDD) and this adjustable-stroke MDJ. The 30mm stroke is comfortably within the bore 20/25/32 table limit of 60 mm, and MDJ adds a 10/20/30mm adjustable range, so match the base stroke to the job since short covers caution against over-long strokes. Select magnet (trailing S) or no magnet, and PT (default) or G threads; check side-load capacity with us.
Applications
Vertical stopper posts
The 6-direction fixing lets the compact body be mounted upside down from a frame top plate as a rising stopper, with bumper cushioning absorbing part arrival.
Test-rig actuation
A 20mm adjustable range on the 30mm stroke lets engineers tune actuation points between tests without changing hardware, packing several units side by side on one rig.
Eject and part-release
Double acting power in both directions and about 245.4 N push at 0.5 MPa suit ejecting finished parts from nests, with 6-way mounting fitting the body inside the die base.
FAQ
How is MDJ25X30-20 different from a plain MD25X30?
Both are 25mm bore, 30mm stroke double acting multi-mount cylinders, but MDJ is the adjustable-stroke variant: it adds a 20mm adjustable range on top of the base stroke. The plain MD has a fixed 30mm stroke.
Where can this cylinder be fixed from?
The square body fixes from 6 directions: front, back, left, right, top and bottom, and units can be mounted side by side to save space. For exact dimensions at this stroke and for side-load limits, confirm from the datasheet.