Airtac MKJ Adjustable Cylinder MKJ20X50-10S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ20X50-10S is a genuine MK multi-mount cylinder (adjustable stroke), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 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)
- Bore20 mm
- Push thrust @0.5 MPa157.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 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 MKJ20X50-10S
The MKJ20X50-10S is a genuine AirTAC multi-mount cylinder: a compact square-body air cylinder that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side to save space. As an adjustable-stroke MK variant it is double acting, with a no-rotating plate, brass bushing and fixed rod that stop the piston rod from turning. The 20 mm bore delivers about 157.1 N theoretical push at 0.5 MPa, the 50 mm stroke carries an extra 10 mm adjustable range, the trailing S means a magnet is built in for magnetic-switch detection, and cushioning is handled by a bumper.
This is a genuine AirTAC part. The MK family is the no-rotating version of the multi-mount range, unlike the standard MD family where rod rotation is allowed. This SKU includes a magnet exactly as the code shows. Overall dimensions and sizing for your layout can be confirmed from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ20X50-10S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ20X50-10S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| 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 20 mm bore when you need roughly 157.1 N of theoretical push at 0.5 MPa. Pick MKJ over MDJ if the rod or tooling must not rotate. This unit is double acting with a 50 mm base stroke plus a 10 mm adjustable range, so the effective stroke can be trimmed within that window; keep strokes modest because the short cover design limits over-long strokes. The trailing S means the magnet is fitted, so magnetic switch detection is available. Thread is PT by default; a G-thread version exists. Side-load ratings and dimensions should be confirmed from the datasheet.
Applications
Pick-and-place tooling
On compact pick-and-place heads, the non-rotating rod keeps grippers aligned, the magnet supports end-of-stroke detection, and the body fixes from whichever of the 6 faces fits the head.
Fixture clamping with sensing
The magnet allows switch confirmation that the part is clamped, while the fixed rod keeps the clamp pad square and the side-by-side mounting suits dense multi-clamp fixtures.
Height-adjust stopper stations
The adjustable 10 mm range fine-tunes stopper or gate height on conveyors, and the non-rotating plate keeps the stopper plate facing the flow of parts.
FAQ
Does MKJ20X50-10S include position sensing?
Yes. The trailing S in the code means a magnet is built into the piston, so magnetic switches can detect piston position. The no-S version of the same cylinder is supplied without a magnet. For the specific compatible switch part numbers, please check with us, as those are listed separately from this facts sheet.
What is the adjustable stroke on this cylinder?
MKJ20X50-10S has a 50 mm base stroke plus a 10 mm adjustable range on top. As a double acting, 20 mm bore unit it can stroke up to 60 mm in this bore size, but the short cover design means an over-long stroke should be avoided. Dimensions for your specific stroke come from the datasheet on request.