Airtac MKJ Adjustable Cylinder MKJ16X40-30
The AirTAC Airtac MKJ Adjustable Cylinder MKJ16X40-30 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
- 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 MKJ16X40-30
The MKJ16X40-30 is an AirTAC multi-mount cylinder, a compact square-body actuator you can fix from 6 directions - front, back, left, right, top and bottom - and mount side by side to save space. This version is adjustable-stroke and double acting with a 16mm bore and 40mm base stroke, plus a 30mm adjustable range on top. At 0.5 MPa it delivers a theoretical push force of 100.5 N, and the cushioning is a bumper. Magnetic-switch slots are machined around the body and the guide precision is high, with no added lubricant needed.
This is a genuine AirTAC part from the MK family, which means the piston rod is prevented from rotating by a no-rotating plate, brass bushing and fixed rod - unlike the standard MD family, where rotation is allowed. This SKU shows no magnet (no trailing S), so do not add one unless you order an S variant. Operating pressure for this bore is 0.15-1.0 MPa (22-145 psi). Dimensions and sizing are stroke-specific; we confirm them from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ16X40-30 Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ16X40-30 |
|---|---|
| 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 | 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 0.5 MPa this 16mm bore gives 100.5 N push and 86.4 N pull, so if you need more force step up to a 20mm or 25mm bore. MK over MD is the key choice: the MK no-rotating design stops the rod turning, while MD allows rotation. This MKJ is double acting with a 40mm stroke and a 30mm adjustable range; double-acting bore 16 strokes run up to 50mm, so keep the stroke short because the cover is not designed for very long strokes. Magnet is not included on this SKU - add an S suffix if you need switch detection. Thread is PT as coded; a G thread version is available. Side-load ratings and exact dimensions come from the datasheet - route those questions to us.
Applications
Jig positioning on fixtures
Mount the cylinder from the top or side of a drill or weld jig and use the non-rotating rod to position a workpiece against a stop repeatably, with the bumper cushioning each cycle.
Small-parts clamping
Bolt several units side by side along a fixture edge to clamp small housings or brackets, the 100.5 N push force at 0.5 MPa holding parts square without rod spin.
Indexing stops on conveyors
Fix the body to the conveyor frame from the top or side and extend the no-rotating rod as a stopper plate to index or hold parts on a light assembly line.
FAQ
What does the -30 in MKJ16X40-30 mean, and how does MKJ differ from a plain MK?
MKJ is the adjustable-stroke version of the MK family. The code decodes as: MK (no-rotating, double acting), 16mm bore, 40mm stroke, and -30 for a 30mm adjustable range added on top of the base stroke. A plain MK16X40 would be a fixed-stroke cylinder with the same 100.5 N push at 0.5 MPa.
Can I mount this cylinder from any face, and how do I check dimensions?
Yes - the multi-mount square body can be fixed from 6 directions: front, back, left, right, top and bottom, and units sit side by side to save space. Note that the cover is not designed for very long strokes, so keep within the short-stroke range. Overall dimensions change with stroke, so confirm them from the datasheet - we can provide it on request.