Airtac MKJ Adjustable Cylinder MKJ25X60-20S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ25X60-20S is a genuine MK multi-mount cylinder (adjustable stroke), 25 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 245.4 N of push force at 0.5 MPa. A bumper cushions the impact. As an MK unit a fixed rod stops the piston rod rotating.
- TypeMulti-mount, adjustable stroke
- SeriesMK (no-rotating)
- Bore25 mm
- Push thrust @0.5 MPa245.4 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 MKJ Adjustable Cylinder MKJ25X60-20S
The MKJ25X60-20S is an adjustable-stroke, no-rotating multi-mount cylinder built to save space: its compact square body can be fixed from 6 directions and mounted side by side with adjacent cylinders. The 25 mm bore gives a theoretical 245.4 N push (206.2 N pull) at 0.5 MPa, the double-acting mechanism runs 30-500 mm/s, and cushioning is a bumper. On top of the 60 mm stroke sits a 20 mm adjustable range for precise in-machine stroke setting.
This is a genuine AirTAC part. In the MK family a no-rotating plate, brass bushing and fixed rod stop the rod turning - the standard MD family permits rotation instead - which keeps plates and gates square under load. The trailing S means this SKU includes the magnet for position sensing via the switch slots around the body. We confirm exact dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ25X60-20S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ25X60-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 25 mm |
| Push thrust @0.5 MPa | 245.4 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
Size the bore to the load: 25 mm yields 245.4 N push / 206.2 N pull at 0.5 MPa over an operating range of 0.15-1.0 MPa. MK keeps the rod from rotating; MD suits applications where rotation is harmless. Choose the acting type - double (MK), single push (MSK), single pull (MTK), double rod (MKD) or adjustable (MKJ, adding 10, 20 or 30 mm of adjustment, here 20 mm on the 60 mm stroke). Note that 60 mm is the maximum stroke this bore's table lists and the short covers caution against over-lengthening it. The trailing S selects the magnet option; the port thread is PT as standard, or specify G.
Applications
Pallet-gate control on AGV decks
On automated guided vehicles, the flat body bolts flush to the deck from 6 possible directions and the non-rotating rod lifts safety gates without twisting.
Lateral part push on sorter chutes
Mounted side by side along the chute, the cylinders divert packages between lanes, and the magnet confirms extend and retract positions to the controller.
Sample handling in lab automation
The 20 mm adjustable stroke positions sample trays repeatably in compact analyser fixtures, with the fixed rod keeping trays level throughout the cycle.
FAQ
Does the S in MKJ25X60-20S change performance?
No - the trailing S only means this SKU is supplied with a built-in magnet, letting the magnetic-switch slots around the body host position sensors. Without the S the same cylinder is supplied without a magnet; the mechanical output, including the 245.4 N push at 0.5 MPa for this 25 mm bore, is identical.
Why does the rod stay from rotating on this model?
The MK family fits a no-rotating plate, brass bushing and fixed rod that lock the rod's orientation, which keeps attached plates, gates and tooling square. Remember the 60 mm stroke is this bore's table maximum - the short covers caution against over-long strokes - and per-stroke dimensions and side-load data should be confirmed from the datasheet.