Airtac MKJ Adjustable Cylinder MKJ25X50-10S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ25X50-10S 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 MKJ25X50-10S
The MKJ25X50-10S is a compact square-body multi-mount cylinder from AirTAC that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side with other cylinders to save space. This no-rotating double-acting model has a 25 mm bore and a 50 mm stroke, with an extra 10 mm adjustable-stroke range on top, within the bore 25 maximum of 60 mm. At 0.5 MPa the bore 25 push side delivers a theoretical thrust of 245.4 N, and the cushion is a bumper. Magnetic-switch slots run around the body, and guide precision is high enough that no added lubricant is needed.
This is a genuine AirTAC part. The MK family differs from the standard MD family in that a fixed rod, no-rotating plate and brass bushing stop the piston rod from turning - useful where the load must not rotate. As the SKU shows, this model includes a magnet for switch sensing. Operating pressure is 0.15-1.0 MPa (22-145 psi) at this bore, the medium is air filtered to 40 um, and the working temperature is -20 to 70 C (0 to 150 C only with the optional high-temperature seal material). We confirm dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ25X50-10S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ25X50-10S |
|---|---|
| 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
Start with the bore: at 25 mm this cylinder gives a theoretical push thrust of 245.4 N at 0.5 MPa (206.2 N on the pull side), so check your load against that figure. Choose MK over MD when rod rotation must be prevented; MD is the standard version where rotation is allowed. This is a double-acting adjustable-stroke (MKJ) model: the listed stroke is 50 mm, and the -10 suffix adds a 10 mm adjustable range on top, within the bore 25 maximum of 60 mm - keep the stroke as short as the job allows given the short cover. The trailing S means a magnet is fitted for switch sensing; the version without the S ships without one. The port is M5x0.8 with PT thread, and G thread is available on request. Confirm any side-load with us before ordering.
Applications
Z-axis pick-and-place
A non-rotating 50 mm lift in a compact pick-and-place head lowers a suction cup or gripper onto a part, with the magnet giving end-position feedback for the PLC.
Reject gate with sensing
Swing or push a gate to divert off-spec parts on a conveyor; the adjustable range tunes the throw, and the built-in magnet lets a switch confirm the gate is fully open.
Test fixture actuation
Apply the bore 25 push thrust (245.4 N at 0.5 MPa) to hold or probe a workpiece in a test rig, side by side with other multi-mount cylinders, without rod rotation upsetting the probe.
FAQ
What does the S at the end of MKJ25X50-10S mean?
The trailing S means a magnet is fitted in the piston, so magnetic switches in the body slots can sense rod position. The same cylinder without the S (MKJ25X50-10) comes without a magnet. The magnet is an option on the MD/MK range, exactly as the SKU shows.
How does the adjustable stroke work here?
MKJ cylinders add an adjustable range on top of the listed stroke: this model has a 50 mm stroke plus 10 mm of extra adjustable travel, within the bore 25 table maximum of 60 mm. Because the body cover is short, avoid specifying more stroke than the application needs, and confirm stroke-related dimensions and any side-load from the datasheet.