Airtac MDJ Adjustable Cylinder MDJ6X20-20
The AirTAC Airtac MDJ Adjustable Cylinder MDJ6X20-20 is a genuine MD multi-mount cylinder (adjustable stroke), 6 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 14.1 N of push force at 0.5 MPa. A bumper cushions the impact.
- TypeMulti-mount, adjustable stroke
- SeriesMD (standard)
- Bore6 mm
- Push thrust @0.5 MPa14.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port sizeM5x0.8
- CushionBumper
- MagnetWithout magnet
- 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 MDJ6X20-20
The MDJ6X20-20 is an AirTAC multi-mount cylinder with an adjustable stroke: a compact square-body pneumatic cylinder that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side with other units to save space. This model is double acting with a 6 mm bore and a 20 mm base stroke, plus a 20 mm adjustable range on top of the base stroke - useful where the end position must be set over a wider window. At 0.5 MPa the bore gives a theoretical push force of about 14.1 N, and the cushion is a bumper.
This is a genuine AirTAC part in the standard MD family (the no-rotating equivalent is the MKJ). The code has no trailing S, so this SKU is supplied without a magnet; magnet versions are listed separately. Exact dimensions depend on stroke, so we confirm sizing and dimensions from the AirTAC datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ6X20-20 Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ6X20-20 |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 6 mm |
| Push thrust @0.5 MPa | 14.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | Without magnet |
| 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
Bore 6 is the smallest option, with about 14.1 N theoretical push at 0.5 MPa - right for light clamping and small-part handling. Choose MD if rod rotation is acceptable, or MK (MKJ) if the rod must not rotate. This MDJ is double acting with an adjustable stroke: 20 mm base stroke plus a 20 mm adjustable range, which stays within the bore-6 double-acting stroke table (up to 35 mm). The code has no trailing S, so no magnet is included on this SKU; add an S variant if position sensing is needed. Port thread is PT as standard, with G available. The compact cover limits practical stroke, so avoid over-long strokes - ask us about side-load limits.
Applications
Adjustable ejector on assembly stations
The 20 mm adjustable range lets technicians set the ejection position for different small parts on one fixture. The compact square body fixes from 6 directions, so it bolts onto the station from whichever face is free.
Indexing stopper
Used as a stopper on rotary indexing tables or small linear feeds, the 6 mm bore gives about 14.1 N push at 0.5 MPa - enough to halt light carriers. Side-by-side mounting suits multi-station indexing layouts.
Compact press assist
For light press or snap-fit jobs on small housings, the short body fits into tight tooling. The bumper cushion softens the end of stroke, and six-way fixing simplifies mounting inside the tool set.
FAQ
How does the adjustable stroke work on the MDJ6X20-20?
The base stroke is 20 mm, and the MDJ design adds a 20 mm adjustable range on top of it, letting you set the effective stroke anywhere in that window without changing cylinders. The adjustable range options are 10, 20 or 30 mm; this SKU carries the 20 mm range. Total stroke still stays within the bore-6 double-acting limit of 35 mm per the stroke table - confirm exact allowable settings from the datasheet.
Does this SKU include a magnet for switch sensing?
No. The code MDJ6X20-20 has no trailing S, so it is supplied without a magnet. The body still has magnetic-switch slots around it, and a magnet-equipped variant (MDJ6X20-20S) is available if you need position detection. The optional high-temperature seal material is also available separately - confirm details from the datasheet.