Airtac MKJ Adjustable Cylinder MKJ6X25-20
The AirTAC Airtac MKJ Adjustable Cylinder MKJ6X25-20 is a genuine MK multi-mount cylinder (adjustable stroke), 6 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 14.1 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)
- Bore6 mm
- Push thrust @0.5 MPa14.1 N
- Operating pressure0.2 - 1.0 MPa (28 - 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 MKJ6X25-20
The MKJ6X25-20 is an AirTAC multi-mount cylinder with a square body that fixes from six directions - front, back, left, right, top and bottom - so cylinders can sit side by side to save space. This no-rotating, double-acting unit has a 6 mm bore with a 25 mm stroke plus a 20 mm adjustable range, giving about 14.1 N of theoretical push force at 0.5 MPa for light clamping and positioning tasks. Cushioning is a bumper, the media is air filtered to 40 um, and it runs at 0.2-1.0 MPa (28-145 psi) over -20 to 70 C.
This is a genuine AirTAC part. The MK family's plate, brass bushing and fixed rod stop the piston rod turning, and this SKU is supplied without a magnet (no S suffix). Porting is M5x0.8 with PT thread. Because overall dimensions change with stroke, ask us and we will confirm them from the datasheet.
Airtac MKJ Adjustable Cylinder MKJ6X25-20 Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ6X25-20 |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 6 mm |
| Push thrust @0.5 MPa | 14.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | Without magnet |
| 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
Specify the 6 mm bore where about 14.1 N of push at 0.5 MPa covers the load. MK stops rod rotation while MD permits it, and this MKJ variant is double acting with a 20 mm adjustable range added to the 25 mm stroke; bore 6/10 double-acting strokes run up to 35 mm. This SKU has no magnet (no S) and PT thread; versions with the S magnet or G thread are listed separately. Keep the stroke within reason given the short cover, and route side-load checks to us.
Applications
Lift-and-lower stopper
Mounted under a conveyor deck, the cylinder raises a stopper blade into the part path, with the wide 20 mm adjustable range setting the blade height precisely.
Fixture clamping strip
Units fixed side by side along a jig edge act as clamping points, and the non-rotating rod keeps each clamp pad flat against the workpiece.
Rotary-table indexing
The cylinder pushes an index pin into the table periphery; the fixed rod prevents pin rotation, and the adjustable range compensates for table wear or position changes.
FAQ
How does the MKJ6X25-20 differ from the MKJ6X25-10?
Both are 6 mm bore, 25 mm stroke, double-acting MKJ no-rotating multi-mount cylinders. The difference is the adjustable range: the -20 suffix gives 20 mm of adjustment on top of the stroke, versus 10 mm on the -10. Neither carries a magnet (no S suffix), and both use PT thread on M5x0.8 ports.
Can I mount this cylinder in any orientation?
Yes. The multi-mount square body can be fixed from six directions - front, back, left, right, top and bottom - and several units can sit side by side to save space. Keep the stroke within the bore's table since the short cover warns against over-long strokes, and confirm exact dimensions and any side-load allowance from the datasheet.