Airtac MKJ Adjustable Cylinder MKJ16X50-20S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ16X50-20S is a genuine MK multi-mount cylinder (adjustable stroke), 16 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 100.5 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)
- Bore16 mm
- Push thrust @0.5 MPa100.5 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 MKJ16X50-20S
The MKJ16X50-20S is a compact square-body multi-mount cylinder that can be fixed from 6 directions - front, back, left, right, top and bottom - and mounted side by side with neighbours to save space. Magnetic-switch slots are machined around the body, and the guide design gives high precision without added lubrication. With a 16mm bore and 50mm stroke plus a 20mm adjustable range, this double-acting no-rotating cylinder delivers a theoretical push thrust of 100.5 N at 0.5 MPa, with bumper cushions at each end of travel. The no-rotating plate and fixed rod keep the rod from turning, so the load stays oriented.
This is a genuine AirTAC part. MK is the no-rotating multi-mount family, while the MD family is the standard version where rod rotation is allowed. The trailing S on this SKU means it is supplied with a magnet for position sensing; SKUs without the S come without a magnet. Overall dimensions and sizing detail vary by stroke - we can confirm them from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ16X50-20S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ16X50-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 16 mm |
| Push thrust @0.5 MPa | 100.5 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 bore for thrust: at 0.5 MPa the 16mm bore gives 100.5 N push and 86.4 N pull, so check it against your load. Pick MD if rod rotation is acceptable and MK if the rod must not turn. Acting type: MKJ is double acting with an adjustable stroke, and this SKU adds a 20mm adjustment on top of the 50mm stroke - note that for bore 16 the base stroke tops out at 50mm, so avoid asking for an over-long stroke; the adjustable range is the better way to reach distant positions. The trailing S means with magnet; omit it for a non-magnetic cylinder. Thread is PT on this SKU, with G available as an option. Allowable side load is not published here - route it to us.
Applications
Conveyor gate stopper
Fix the body from the top or side of a conveyor frame, extend the non-rotating rod as a product stop, and use the 20mm adjustment to fine-tune the stop position line by line.
Jig positioning on fixtures
Mount several MKJ16X50-20S cylinders side by side inside a welding or assembly jig where space is tight, and clamp or position workpieces with a rod that never turns out of orientation.
Small-parts clamp
Fix from six directions to suit cramped machine faces, and use the bumper-cushioned 16mm bore to hold small parts against a locator with 100.5 N of theoretical push at 0.5 MPa.
FAQ
What does the -20 in MKJ16X50-20S mean?
MKJ is the adjustable-stroke version of the MK no-rotating multi-mount cylinder. The code decodes as a 16mm bore, 50mm base stroke, and a 20mm adjustable range added on top of the base stroke. The trailing S means the cylinder is supplied with a magnet; without the S it ships without one.
How does the no-rotating design work, and what does it stop?
An MK-family cylinder uses a no-rotating plate, brass bushing and fixed rod so the piston rod cannot turn under load - the rod stays square to the body for clamps, gates and plates. Only the MK family is no-rotating; the MD family is the standard multi-mount version. For exact plate dimensions and side-load limits, confirm from the datasheet.