Airtac MKJ Adjustable Cylinder MKJ10X25-20S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ10X25-20S is a genuine MK multi-mount cylinder (adjustable stroke), 10 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 39.3 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)
- Bore10 mm
- Push thrust @0.5 MPa39.3 N
- Operating pressure0.2 - 1.0 MPa (28 - 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 MKJ10X25-20S
The MKJ10X25-20S is a compact AirTAC multi-mount cylinder that fixes from six directions - front, back, left, right, top and bottom - so units can be bolted side by side to save space. This no-rotating, double-acting model carries a 10 mm bore, a 25 mm stroke and an extra 20 mm adjustable range, giving about 39.3 N of theoretical push force at 0.5 MPa. Cushioning is a bumper, running speed is 30-500 mm/s, and magnetic-switch slots are machined around the body.
This is a genuine AirTAC part. The MK family stops the rod from turning with a no-rotating plate, brass bushing and fixed rod, while the standard MD family allows rotation. The trailing S shows this SKU includes a magnetic piston for switch sensing. We confirm dimensions, stroke limits and sizing details from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ10X25-20S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ10X25-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 10 mm |
| Push thrust @0.5 MPa | 39.3 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.2 - 1.0 MPa (28 - 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 drives thrust: at 0.5 MPa a 10 mm bore delivers 39.3 N push (33.0 N pull) in double-acting form, so move up to 16 or 20 mm if the job needs more force. Choose MK to prevent rod rotation or MD when rotation is acceptable. Acting choices span double acting, single push (MSK), single pull (MTK), double rod (MKD) and adjustable stroke (MKJ), which adds a 10, 20 or 30 mm adjustable range. Keep the stroke inside the bore 10 table (up to 35 mm) - the covers are short, so avoid stretching to an over-long stroke. Magnet is optioned with the trailing S, and the port thread is PT by default or G; route side-load questions to us.
Applications
Drilling jig positioning
Bolt the square body against a jig wall and extend the no-rotating rod over its 25 mm stroke plus 20 mm adjustable range to seat a part squarely before drilling - no twist, no re-clamping.
Pick-and-place transfer
Mount the body on the side or top of a compact transfer unit; the fixed rod carries a gripper plate through the stroke without turning, keeping parts oriented between stations.
Escapement stopper
Fix the cylinder to a conveyor side rail and stop small parts on a lightly loaded line; the magnet on the piston lets a switch confirm the stop position.
FAQ
What does the 20 in MKJ10X25-20S mean?
MKJ is the MK-family adjustable-stroke model. This SKU has a 25 mm main stroke plus a 20 mm adjustable range on top, in a no-rotating, double-acting bore 10 cylinder. The trailing S means the magnet is included; without it the code ends at the adjustable number and the thread is PT by default or G.
Why pick MKJ over a standard cylinder here?
The MK build adds a no-rotating plate, brass bushing and fixed rod, so the rod cannot turn under load - useful for plates and clamps that must stay square. The body fixes from six directions and mounts side by side. Because the covers are short, avoid an over-long stroke, and take exact dimensions, weights and side-load figures from the datasheet.