Airtac MDJ Adjustable Cylinder MDJ32X70-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ32X70-20S 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 MDJ32X70-20S
The AirTAC multi-mount is a compact square-body cylinder that can be fixed from six directions - front, back, left, right, top and bottom - and mounted side by side to save space, with magnetic-switch slots around the body and high guide precision without added lubricant. This MDJ32X70-20S is the adjustable-stroke, double-acting variant with a 32 mm bore and 70 mm stroke plus a 20 mm adjustable range, giving a theoretical push thrust of 402.1 N at 0.5 MPa - useful for clamping, positioning and stopping in tight footprints. Cushioning is a bumper, and it runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, from -20 to 70 C.
This is a genuine AirTAC part from the standard MD family; the MK family is the no-rotating version, which adds a fixed rod and plate to stop the piston rod turning. The trailing S in the SKU means this model is supplied with a magnet for position sensing. We can confirm overall dimensions and sizing from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ32X70-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ32X70-20S |
|---|---|
| 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 bore for thrust: at 0.5 MPa this 32 mm bore delivers a theoretical 402.1 N on the push side as a double-acting cylinder (the pull side is lower). MD is the standard family where rod rotation is allowed; pick MK if rotation must be prevented. Acting choices are double acting, single push (MSD/MSK), single pull (MTD/MTK), double rod (MDD/MKD) and adjustable stroke (MDJ/MKJ, which add a 10-30 mm adjustable range on top of the stroke). This SKU is coded for a 70 mm stroke with a 20 mm adjustable range; the short covers mean you should check very long strokes with us before ordering. The trailing S adds the magnet; PT thread is standard and G is available. Side-load ratings and exact dimensions come from the datasheet - ask us.
Applications
Pick-and-place indexing
Use the 70 mm stroke with its 20 mm adjustable range to fine-tune the drop position of a pick-and-place head over small parts, with the theoretical 402.1 N push thrust at 0.5 MPa handling the press or eject step.
Gate and stopper positioning
Mount side by side along a conveyor line and fix the square body from the top or side; the adjustable stroke lets you dial in the stopper position for gating parts between stations.
Small-parts clamping
Fix the body from any of six directions inside a compact fixture to clamp small parts, with the bumper cushioning the clamp motion at the end of stroke.
FAQ
What does the -20S in MDJ32X70-20S mean?
Decode it as an AirTAC adjustable-stroke multi-mount cylinder: MDJ = double acting with an adjustable stroke, 32 = 32 mm bore, X70 = 70 mm stroke, -20 = a 20 mm adjustable range, and the trailing S = supplied with a magnet. Port on this bore is 1/8" with PT thread as standard.
How does the six-direction mounting help in a tight machine?
The square body can be fixed from front, back, left, right, top or bottom, so you can pick the one face that is accessible and mount cylinders side by side to save space, with magnetic-switch slots around the body. Overall dimensions vary with stroke, so confirm them from the datasheet - we can send it on request.