Airtac MDJ Adjustable Cylinder MDJ20X60-30S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ20X60-30S is a genuine MD multi-mount cylinder (adjustable stroke), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 N of push force at 0.5 MPa. A bumper cushions the impact.
- TypeMulti-mount, adjustable stroke
- SeriesMD (standard)
- Bore20 mm
- Push thrust @0.5 MPa157.1 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 MDJ20X60-30S
The MDJ20X60-30S is an AirTAC MD-series multi-mount cylinder, a compact square-body actuator that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side to save space. This adjustable-stroke, double-acting version carries a 20 mm bore with a 60 mm stroke and an additional 30 mm adjustable range, delivering about 157.1 N of theoretical push thrust at 0.5 MPa for light clamping and positioning jobs. Cushioning is by bumper, and magnetic-switch slots are provided around the body.
This is a genuine AirTAC part. The MD family is the standard multi-mount design, distinct from the MK family, which adds a no-rotating plate to prevent rod rotation. As the SKU shows, this model includes a magnet. We can confirm dimensions and sizing from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ20X60-30S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ20X60-30S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 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
Choose the bore for thrust: at 0.5 MPa this 20 mm bore gives about 157.1 N push and 131.9 N pull. Select MD if rotation of the rod is acceptable, or an MK model if it must be prevented. Acting type: this MDJ is double acting with an adjustable stroke, adding a 30 mm adjustable range on top of the 60 mm stroke; the 60 mm stroke sits at the top of the bore 20 table, and the short cover cautions against fitting an over-long stroke, so check the application before extending. The trailing S means this SKU includes a magnet; thread is PT, with a G option available. Side-load capacity depends on the installation, so route that question to us.
Applications
Small-parts clamping
Bolt the square body from the top or side of a fixture and use the 20 mm bore's push thrust to clamp small parts, adjusting the stroke to suit different part heights.
Jig positioning
Mount cylinders side by side on a jig plate to add adjustable positioning stops, with the 30 mm adjustable range absorbing jig variations without changing hardware.
Machine indexing
Fix the body from 6 directions inside a compact automation cell and use the adjustable stroke to set indexing or ejection travel precisely where the cycle needs it.
FAQ
What does the '-30S' in MDJ20X60-30S mean?
MDJ marks the adjustable-stroke version of the MD double-acting multi-mount cylinder, 20 is the bore in mm, 60 is the stroke in mm, -30 is the 30 mm adjustable range added on top of the stroke, and the trailing S shows the cylinder includes a magnet. Thread is PT by default, with G available as an option.
How many ways can I mount this cylinder?
The multi-mount square body can be fixed from 6 directions: front, back, left, right, top and bottom. Cylinders can also sit side by side to save space. Note the short cover limits the practical stroke, so avoid specifying an over-long stroke, and confirm side-load limits and exact dimensions from the datasheet.