Airtac MDJ Adjustable Cylinder MDJ16X50-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ16X50-20S 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 MDJ16X50-20S
The MDJ16X50-20S is an adjustable-stroke multi-mount cylinder from AirTAC's MD family: a compact square-body, double-acting cylinder that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side to save space. With a 16 mm bore pushing at 0.5 MPa it delivers about 100.5 N of theoretical thrust, and the built-in stroke adjustment adds a 20 mm range on top of the 50 mm base stroke, so you can fine-tune the end position without shimming. Cushioning is a bumper. Magnetic-switch slots run around the body and the guide precision is high, with no added lubricant required.
This is a genuine AirTAC part for the US market. The MD family is the standard multi-mount series; if your job needs the piston rod to be prevented from turning, choose the MK no-rotating family instead. This SKU includes a magnet (the trailing S), so it can drive position switches in the body slots. We can confirm dimensions and sizing from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ16X50-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ16X50-20S |
|---|---|
| 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
Start with the bore: at 16 mm you get 100.5 N of theoretical push thrust at 0.5 MPa, double the 39.3 N of a 10 mm bore. Then pick the family: MD allows rod rotation, while MK prevents it with a no-rotating plate. This MDJ is double acting with an adjustable stroke - the 50 mm base stroke plus a 20 mm adjustable range - and the 50 mm stroke sits at the top of the bore 16 table (up to 50 mm), so check the short-cover caution before asking for a longer stroke; keep the stroke short where you can. The trailing S means a magnet is fitted. Port thread on this SKU is PT; a G-thread version is available if your fittings need it. For side-load limits, confirm from the datasheet or ask us.
Applications
Small-parts clamping
Clamp small parts in fixtures where the 16 mm bore's 100.5 N push at 0.5 MPa is enough and the adjustable 20 mm range lets you set the exact grip position on each station.
Jig positioning
Mount the square body into a jig from whichever of the 6 directions is free and place several cylinders side by side to position workpieces on a dense fixture plate.
Gate and stopper duty
Extend and retract a compact stopper or gate on a line, using the adjustable stroke to set the stop height and the bumper cushion to soften each cycle.
FAQ
What does the -20 in MDJ16X50-20S mean?
The code decodes as MDJ (adjustable-stroke, double acting), 16 mm bore, 50 mm base stroke, plus a 20 mm adjustable range, and the trailing S means a magnet is fitted. The thread is PT by default. So you get 50 mm of travel and can shorten the effective stroke by up to 20 mm.
How do I fix this cylinder, and where do I find dimensions and side-load limits?
The square body can be fixed from 6 directions - front, back, left, right, top and bottom - and cylinders can sit side by side to save space. Overall dimensions depend on the stroke, and allowable side-load figures are in the datasheet, so confirm both from the datasheet or ask us before designing the mount.