Airtac MKJ Adjustable Cylinder MKJ25X60-50
The AirTAC Airtac MKJ Adjustable Cylinder MKJ25X60-50 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
- 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 MKJ Adjustable Cylinder MKJ25X60-50
The MKJ25X60-50 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, there is no trailing S here, so this unit comes 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 MKJ25X60-50 Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ25X60-50 |
|---|---|
| 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 | 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 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. Add the trailing S if you want the built-in magnet; the port on bore 25 is M5x0.8 and the thread is PT by default or G where ordered.
Applications
Jig positioning in fixtures
Side-by-side mounting and six-direction fixing let this cylinder be bolted into crowded jigs, with the adjustable range dialing the positioning stroke in and the no-rotating plate keeping the jig contact square.
Small-parts eject or clamp on a fixture
Fired from the top or bottom of a fixture, the 25 mm bore pushes with 245.4 N theoretical force at 0.5 MPa and the bumper cushions the clamp or eject stroke without disturbing the set position.
Gate or stopper on a transfer line
As a stopper the fixed rod stays square to oncoming parts because the rod cannot rotate, and side-by-side mounting keeps multiple stations packed close on the line frame.
FAQ
MKJ25X60-50 has no trailing S - does that change the cylinder?
Only in sensing. The trailing S is the built-in magnet, so this SKU comes without one. The magnetic-switch slots are still machined around the body, but for position detection you would order an S variant or confirm sensing options with us. Everything else, including the no-rotating plate and the 50 mm adjustable range, is as coded.
How long can the stroke be on this bore, and how is the adjustable range added?
In double acting, the stroke table for the 25 mm bore tops out at 60 mm, which is exactly what this model uses. The MKJ suffix adds the adjustable range shown after the hyphen on top of the base stroke. Because the covers are short, avoid stretching beyond the table, and we confirm overall dimensions and side-load limits from the datasheet on request.