Airtac MKJ Adjustable Cylinder MKJ25X30-30
The AirTAC Airtac MKJ Adjustable Cylinder MKJ25X30-30 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 MKJ25X30-30
The AirTAC MKJ25X30-30 is a compact square-body multi-mount cylinder that can be fixed from six directions (front, back, left, right, top and bottom) and mounted side by side to save space, with magnetic-switch slots machined around the body and high guide precision so no added lubricant is needed. This is the no-rotating, adjustable-stroke variant, double acting with a 25 mm bore, a 30 mm base stroke and a 30 mm adjustable range, delivering a theoretical push force of 245.4 N at 0.5 MPa (206.2 N on the pull side), running at 30-500 mm/s and cushioned by a bumper.
This is a genuine AirTAC part from the MK family, the no-rotating version of the multi-mount range: a fixed rod and no-rotating plate stop the piston rod from turning, where the standard MD family allows rotation. The SKU shows no magnet suffix, so this unit is supplied without a magnet. Operating medium is air filtered to 40 um, proof pressure is 1.5 MPa (215 psi) and the temperature range is -20 to 70 C. We confirm dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ25X30-30 Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ25X30-30 |
|---|---|
| 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
Choose the bore for thrust: at 25 mm this cylinder gives a theoretical push force of 245.4 N at 0.5 MPa double acting, with 206.2 N on the pull side. MKJ is the adjustable-stroke no-rotating choice when the rod must not turn and the end position must be set on the machine; MD is the standard family where rotation is acceptable. Strokes for the 25 mm bore run up to 60 mm, and this variant adds a 10, 20 or 30 mm adjustable range on top of the base stroke. Keep the stroke short, as the compact covers do not suit an over-long stroke. This SKU is the plain 30 mm base stroke with a 30 mm adjustment, no magnet (the S suffix adds one) and PT thread, with M5x0.8 ports. Route side-load questions to us or the datasheet.
Applications
Small-parts clamping
Fix the square body to the top or side of a fixture and clamp small parts with the non-rotating plate, dialling the clamp travel in with the 30 mm adjustable range.
Jig positioning
Bolt the cylinder to an assembly or welding jig and use the adjustable end position to seat workpieces accurately without the push rod rotating.
Gate and stopper control
Mount units side by side along a conveyor line to extend stopper bars or swing divert gates, setting each unit's end position to the lane it serves.
FAQ
What does the code MKJ25X30-30 decode to?
MKJ is the no-rotating, adjustable-stroke double-acting member of the AirTAC multi-mount family. 25 is the bore in mm, 30 after the X is the base stroke in mm and the -30 sets a 30 mm adjustable range on top. There is no S suffix, so this unit is supplied without a magnet, and the blank thread code means PT ports (M5x0.8 on this bore).
Which ways can I mount this cylinder from?
All six: front, back, left, right, top and bottom, so units can be stacked side by side to save space. Magnetic-switch slots run around the body so switch positions stay flexible, but exact overall dimensions vary with the stroke, so confirm them from the datasheet.