Airtac MDJ Adjustable Cylinder MDJ16X20-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ16X20-20S 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 MDJ16X20-20S
The MDJ16X20-20S is an AirTAC adjustable-stroke multi-mount cylinder with a 16 mm bore and 20 mm base stroke. The square body fixes from 6 directions (front, back, left, right, top and bottom) and mounts side by side, saving space in dense fixtures. As a double-acting unit it gives about 100.5 N of theoretical push force at 0.5 MPa, and the cushion is a bumper. The trailing S means a magnet is built into the piston, and magnetic-switch slots run around the body, so position sensors can be fitted and moved without drilling. The -20 suffix adds a 20 mm adjustable stroke range on top of the base stroke.
This is a genuine AirTAC part in the standard MD family, so rod rotation is not prevented; for a no-rotating rod, choose the MKJ variant instead. It operates on filtered air at 0.15-1.0 MPa. We confirm exact dimensions and sizing help from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ16X20-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ16X20-20S |
|---|---|
| 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
The 16 mm bore suits tasks needing about 100.5 N of push at 0.5 MPa in double-acting service. The MDJ gives a 20 mm base stroke plus a 20 mm adjustable range (10/20/30 mm ranges exist) - but keep strokes modest, since the short cover makes an over-long stroke awkward. Pick MD if rotation is allowed or MK if the rod must not turn; pick the S suffix, as here, only when you need magnetic-switch sensing. Port thread is PT as standard, with G available. For side-load capability and exact dimensions, send us the application and we will confirm from the datasheet.
Applications
Pick-and-place gantries
Drive the down-stroke of a compact pick head. The magnet and switch slots give end-of-stroke signals for the gripper sequence, while the 6-direction fixing suits tight gantry frames.
Fixture clamping with sensing
Clamp small parts in a drill or weld fixture and confirm the clamp is seated via a magnetic switch. The adjustable stroke lets you tune clamp travel per part revision.
Gate and stopper actuation
Raise or swing a small gate or stopper on a conveyor line. Side-by-side mounting lets several stoppers share one frame rail, and the bumper cushions each cycle.
FAQ
Why choose MDJ16X20-20S over the version without the S suffix?
The trailing S means a magnet is built into the piston, and magnetic-switch slots run around the body, so you can fit and reposition switches for end-of-stroke or mid-stroke signals. The non-S version has no magnet and cannot be sensed with magnetic switches. Magnet is an option on this series, not a default.
Where does the 6-direction mounting help in real layouts?
The square body fixes from any of 6 faces - front, back, left, right, top and bottom - so you can bolt it from whichever surface your machine frame offers and place cylinders side by side on a shared rail. This saves space in dense fixtures. For side-load limits on a given mounting orientation, confirm from the datasheet with us.