Airtac MDJ Adjustable Cylinder MDJ16X40-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ16X40-20S is a genuine MD multi-mount cylinder (adjustable stroke), 16 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 100.5 N of push force at 0.5 MPa. A bumper cushions the impact.
- TypeMulti-mount, adjustable stroke
- SeriesMD (standard)
- Bore16 mm
- Push thrust @0.5 MPa100.5 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 MDJ16X40-20S
The AirTAC MDJ16X40-20S is an adjustable-stroke multi-mount cylinder: a compact square-body unit fixable from six directions (front, back, left, right, top and bottom) and mountable side by side to save space. It pairs a 16 mm bore and 40 mm base stroke with a 20 mm adjustable range, double acting for powered motion both ways, with about 100.5 N of theoretical push at 0.5 MPa and bumper cushioning at the ends of stroke.
This is a genuine AirTAC part from the MD standard series (the MK family is the no-rotating alternative). The trailing S means this SKU is supplied with a magnet fitted, so magnetic switches seated in the slots around the body can signal position. Dimensions vary with stroke, so we confirm exact sizing from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ16X40-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ16X40-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 16 mm |
| Push thrust @0.5 MPa | 100.5 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
Select the 16 mm bore for loads near 100.5 N push at 0.5 MPa; a different bore moves that figure. MD allows rod rotation; choose MK if rotation must be prevented. This code is double acting and adjustable stroke: 40 mm base plus 20 mm adjustable, comfortably inside the bore-16 stroke table that tops out at 50 mm - avoid over-long strokes on the short cover. The S suffix means the magnet is included; codes without S ship without one. Thread is PT as standard with G optional; ask us about side-load limits.
Applications
Indexing stopper
Mounted top or side on a rotary indexing table, the adjustable stroke sets a repeatable part stop, while the magnet feeds a position signal back to the PLC.
Clamp-then-check station
The 16 mm bore clamps small housings in a test fixture, and the built-in magnet confirms the clamp is fully home before the gauge cycle starts.
Slide deflection gate
Units fixed side by side along a conveyor edge extend to divert small cartons, with the 20 mm adjustment compensating for guide rail wear.
FAQ
What does the S at the end of MDJ16X40-20S mean?
It means the cylinder is supplied with a magnet in the piston. Magnetic switches placed in the slots around the square body can then detect rod position. The same code without the S is supplied without a magnet - magnet is an option, not a standard feature, on this series.
How far can the stroke be adjusted?
This model has a 40 mm base stroke with a 20 mm adjustable range. Note the short cover design favours compact strokes; for the exact envelope dimensions at your setting, confirm from the datasheet, and check side-load suitability with us.