Airtac MKJ Adjustable Cylinder MKJ6X15-20S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ6X15-20S 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
- 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 MKJ6X15-20S
The AirTAC MKJ6X15-20S is a compact, square-body multi-mount cylinder that fixes from 6 directions - front, back, left, right, top and bottom - and mounts side by side to save space. It is the no-rotating adjustable-stroke version of the MK family: the rod cannot turn, and the 20 mm adjustable range adds to the 15 mm base stroke for fine stroke setting on the machine. In double-acting service, the 6 mm bore gives about 14.1 N of theoretical push force at 0.5 MPa, with cushioning by a bumper.
This is a genuine AirTAC part. The trailing S in the code means it is supplied WITH a magnet, so magnetic-switch slots around the body can be used for position sensing. It runs on 0.2-1.0 MPa (28-145 psi) of air filtered to 40 um, with an M5x0.8 port and PT thread. We can confirm dimensions and sizing for your stroke from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ6X15-20S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ6X15-20S |
|---|---|
| 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 | 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
At 6 mm bore, expect about 14.1 N theoretical push (10.6 N pull) at 0.5 MPa - size the bore to the load. Pick MKJ over standard MD when rotation must be prevented; the no-rotating plate and fixed rod hold the rod orientation, which is why this family suits plates and guided tools. The code breaks down as 15 mm base stroke plus a 20 mm adjustable range, so the usable stroke is set after installation. This SKU is double acting with magnet (S) and PT thread; order the same code without S for no magnet, or ask about G thread. Keep strokes within the short-cover limits and route side-load checks to us.
Applications
Small-parts clamp in a compact machine
Clamps small components in tight machining or assembly heads. The no-rotating rod keeps the clamp pad facing the part, and the magnet feeds a clamped-confirmation signal.
Pick-and-place of light components
Extends and retracts a light gripper or vacuum plate. Non-rotating rod action keeps the pick point oriented between stations, and 6-direction fixing suits dense multi-axis layouts.
Part presence stopper with sensing
Stops small parts at a station on a fixture line. The built-in magnet allows end-position switch detection, and the adjustable stroke trims the stopper reach without re-machining.
FAQ
Does the S at the end of MKJ6X15-20S matter when ordering?
Yes. The trailing S means this cylinder is supplied WITH a magnet for magnetic-switch position sensing in the slots around the body. The same code without the S is supplied without a magnet. The magnet is an option on this family, not a fixed feature.
How far can the stroke be adjusted, and are there stroke length limits?
This model has a 15 mm base stroke with a 20 mm adjustable range added on top, set mechanically after installation. Keep requested strokes modest - the short covers of this compact body limit how long a stroke the bore can carry - and confirm the exact figures from the datasheet, which we can supply.