Airtac MDJ Adjustable Cylinder MDJ10X40-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ10X40-20S is a genuine MD multi-mount cylinder (adjustable stroke), 10 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 39.3 N of push force at 0.5 MPa. A bumper cushions the impact.
- TypeMulti-mount, adjustable stroke
- SeriesMD (standard)
- Bore10 mm
- Push thrust @0.5 MPa39.3 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 MDJ10X40-20S
The MDJ10X40-20S is an adjustable-stroke AirTAC multi-mount cylinder whose compact square body fixes from 6 directions: front, back, left, right, top and bottom. Bodies mount side by side to save space, and magnetic-switch slots surround the body for easy sensor placement. This bore 10 double-acting version produces a theoretical push force of 39.3 N at 0.5 MPa (33.0 N on the pull side) on 0.15-1.0 MPa (22-145 psi), at 30-500 mm/s. Cushioning is a bumper, with air filtered to 40 um as the medium.
This is a genuine AirTAC part in the MD standard family - the rod rotates freely; for a rod held against rotation, use the MK no-rotating family. The trailing S shows this SKU carries a magnet. Operating temperature is -20 to 70 C (0 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 MDJ10X40-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ10X40-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 10 mm |
| Push thrust @0.5 MPa | 39.3 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 10 double-acting gives 39.3 N theoretical push at 0.5 MPa; choose bore 16 (100.5 N) where more force is needed. This MDJ unit combines a 40 mm base stroke with a 20 mm adjustable range on top, for up to 60 mm of total travel. The S suffix means the magnet is built in; the port is M5x0.8 with PT thread as standard (G available). Stay within the bore 10 stroke table - the short cover warns against over-long strokes - and route side-load enquiries to us.
Applications
Batch-change jig clamps
The 20 mm adjustable range covers multiple workpiece heights on one jig, so the bore 10 double-acting unit (39.3 N at 0.5 MPa) is re-set rather than swapped between batches.
Small-parts eject and stop
Fix the square body from any of 6 directions to eject or stop small parts at a station, with the bumper cushion taking the sting out of each end of stroke.
Compact automation cells
Line several MDJ cylinders side by side in a tight cell; the magnet (S) feeds position signals to the controller from the magnetic-switch slots around each body.
FAQ
How do I choose between MDJ and a plain MD cylinder?
Both are standard MD family, double-acting units where the rod rotates freely. The MDJ adds an adjustable-stroke range - here 20 mm on top of the 40 mm base stroke - so you can fine-tune the end position without changing cylinders. The S suffix means this unit has the magnet fitted.
Where do I find dimensions and side-load limits for this model?
Overall dimensions change with the stroke, so they are listed per model in the datasheet, along with allowable side load. We confirm both from the datasheet on request before you finalise your layout.