Airtac MDJ Adjustable Cylinder MDJ32X40-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ32X40-20S is a genuine MD multi-mount cylinder (adjustable stroke), 32 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 402.1 N of push force at 0.5 MPa. A bumper cushions the impact.
- TypeMulti-mount, adjustable stroke
- SeriesMD (standard)
- Bore32 mm
- Push thrust @0.5 MPa402.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port size1/8"
- 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 MDJ32X40-20S
The AirTAC MDJ32X40-20S is an adjustable-stroke, double acting multi-mount cylinder with a 32 mm bore, 40 mm base stroke and an extra 20 mm adjustable range, so the effective stroke can be set precisely on the machine. The compact square body fixes from 6 directions (front, back, left, right, top and bottom) and mounts side by side to save space, with magnetic-switch slots around the body and high guide precision without added lubrication. Cushioning is a bumper. At 0.5 MPa this bore delivers a theoretical push force of 402.1 N on air filtered to 40 um, with an operating range of 0.15-1.0 MPa (22-145 psi) and a working temperature of -20 to 70 C.
This is a genuine AirTAC part. The MD family is the standard multi-mount series, where rod rotation is allowed; the MK family adds a no-rotating plate when rotation must be prevented. The S in this SKU means the unit is supplied WITH a magnet, ready for the body's switch slots. We confirm overall dimensions and sizing for your stroke from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ32X40-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ32X40-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 32 mm |
| Push thrust @0.5 MPa | 402.1 N |
| Port size | 1/8" (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
Choose the 32 mm bore for the strongest thrust in the range: 402.1 N push (345.6 N pull) at 0.5 MPa on a 0.15-1.0 MPa supply. This MDJ variant is double acting with a 20 mm adjustable range on top of the 40 mm base stroke. If rod rotation must be prevented, switch to the MKJ no-rotating series. Keep the base stroke within the bore 32 table (up to 60 mm); the short cover cautions against over-long strokes, so route borderline layouts to us. The trailing S gives you the magnet, and the thread is PT by default (G on request); side-load figures come from the datasheet.
Applications
Compact press station
Top- or bottom-fix the square body in a benchtop press fixture and use the 402.1 N push at 0.5 MPa for short pressing or staking jobs, stroke-tuned within 20 mm.
Fixture locating pin
Mount the cylinder side by side with neighbours in a weld or assembly fixture as a double acting locating pin, with the adjustable range matching stop positions.
End-of-arm pick-and-place stop
Fit the body at any of 6 orientations in a tight pick-and-place cell as a part stopper, with the magnet and switch slots signalling part presence.
FAQ
How do I decode MDJ32X40-20S?
MDJ is the adjustable-stroke double acting version of the MD multi-mount cylinder. 32 is the bore, 40 the base stroke in mm, -20 the extra adjustable range, and the trailing S means the unit is supplied WITH a magnet. Thread is PT unless a G version is ordered.
Why does the short body limit long strokes?
The multi-mount design keeps the body compact so cylinders can be fixed from 6 directions and mounted side by side, and the short cover means very long strokes are not the intended use. Keep the base stroke within the bore 32 table (up to 60 mm) and confirm exact dimensions and side-load limits from the datasheet for your layout.