Airtac MKJ Adjustable Cylinder MKJ25X60-50S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ25X60-50S 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 MKJ25X60-50S
The MKJ25X60-50S is a genuine AirTAC multi-mount cylinder with a compact square body that can be fixed from six directions: front, back, left, right, top and bottom. Units also mount side by side to save space, with magnetic-switch slots machined around the body. This MKJ variant is double acting with an adjustable stroke, and the MK no-rotating plate keeps the piston rod from turning, so anything carried on the rod holds its orientation. On the 25 mm bore the theoretical push force is 245.4 N at 0.5 MPa (206.2 N on the pull side), motion is cushioned by a bumper, and the working speed range is 30-500 mm/s.
This is a genuine AirTAC part. The MK family differs from the standard MD multi-mount range in one key way: MK prevents rod rotation while MD variants allow it. As the SKU shows, the trailing S means a magnet is built in for position sensing; SKUs without the S come without a magnet. On this bore the operating pressure is 0.15-1.0 MPa (22-145 psi), the medium is air filtered to 40 um, and the temperature range is -20 to 70 C (0 to 150 C only with the optional high-temperature seal material). Overall dimensions change with stroke, so we confirm dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ25X60-50S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ25X60-50S |
|---|---|
| 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
Bore sets the force: at 0.5 MPa the 25 mm bore delivers 245.4 N theoretical push and 206.2 N pull in double acting use. MD vs MK is the rotation decision - the MK body adds a no-rotating plate, brass bushing and fixed rod so the rod cannot turn, while MD variants allow rotation. Acting type then follows the prefix: double acting (MK/MKD), single-acting push (MSK), single-acting pull (MTK), or adjustable stroke (MKJ, as here, where the figure after the hyphen adds an adjustable range on top of the base stroke). Double-acting stroke for this bore runs up to 60 mm; keep the short covers in mind and avoid over-long strokes, and route side-load questions to us. The trailing S in this SKU adds the built-in magnet, the port on bore 25 is M5x0.8, and the thread is PT by default or G where ordered.
Applications
Pick-and-place with held orientation
The no-rotating rod keeps a gripped or vacuum-picked part from spinning during transfer, the built-in magnet supports end-position sensing, and side-by-side mounting packs multiple axes into a tight frame.
Indexed machine-table stopper
Used as a stop on a rotary or linear indexing table, the fixed rod holds the stop face steady, the bumper cushions each engagement, and the 50 mm adjustable range lets the stop be re-tuned for different part sizes.
Small-parts clamp on a machining fixture
Mounted through the top or side of a fixture, this cylinder clamps small workpieces with 245.4 N theoretical push at 0.5 MPa while the no-rotating plate prevents the contact pad from twisting the part.
FAQ
Which port thread does MKJ25X60-50S use, PT or G?
PT. There is no trailing G in the model code, so the default PT thread applies; a G version is available where ordered. The port on this 25 mm bore is M5x0.8 either way, so match your fittings and tubing thread standard before ordering.
How does the six-direction mounting actually help on a machine?
The square body can be fixed from the front, back, left, right, top or bottom, and several units can sit side by side, which is what makes this range space-saving in dense fixtures and compact machines. The rod cannot rotate thanks to the MK no-rotating plate. For the exact footprint and side-load limits at your stroke, we confirm the figures from the datasheet on request.