Airtac MK Series Multi-position Locking Cylinder MK20X30
The AirTAC Airtac MK Series Multi-position Locking Cylinder MK20X30 is a genuine MK multi-mount cylinder (double acting), 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, double acting
- 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
- 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 MK Series Multi-position Locking Cylinder MK20X30
The MK20X30 is a compact square-body multi-mount cylinder that fixes from six directions - front, back, left, right, top and bottom - and mounts side by side to save space in tight machine layouts. This double acting, no-rotating model pairs a 20 mm bore with a 30 mm stroke, delivering a theoretical push force of 157.1 N at 0.5 MPa (131.9 N on the pull side) and running at 30-500 mm/s on filtered air. A bumper cushions each end of stroke; switch slots surround the body, but this SKU is built without a magnet.
This is a genuine AirTAC part from the MK family, where a no-rotating plate, brass bushing and fixed rod prevent the piston rod from turning - the difference from the standard MD body. It operates at 0.15-1.0 MPa (22-145 psi) via an M5x0.8 PT-threaded port. Since overall dimensions are per stroke, we confirm dimensions, weights and sizing details from the datasheet on request.
Airtac MK Series Multi-position Locking Cylinder MK20X30 Technical Specifications
| Model | Airtac MK Series Multi-position Locking Cylinder MK20X30 |
|---|---|
| Type | Multi-mount cylinder, double acting |
| Series | MK (no-rotating) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 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
Match the bore to the load: at 0.5 MPa this 20 mm bore produces 157.1 N push (131.9 N pull) in double acting trim. Choose MK rather than MD when the rod must not rotate. The family also offers single push (MSK), single pull (MTK), double rod (MKD) and adjustable-stroke (MKJ, which adds a 10/20/30 mm adjustable range on top of the base stroke). The 30 mm stroke is comfortably within this bore's 60 mm table, but the short covers argue against over-long strokes, so stay conservative and ask us about side-load limits. Magnet presence is shown by the trailing S (absent here), and the port thread is PT by default with G available.
Applications
Pick-and-place lift
Lift small components vertically between stations. The no-rotating rod keeps the gripped part oriented, and 6-way fixing lets the body bolt into a tight vertical envelope.
Slide lock at an assembly station
Pin a slide or pallet in position during an assembly step. Fixing the body from the top or bottom face works where the sides are blocked by neighboring machine parts.
Batch push-off
Push small parts off a chute or stack into a bin or gutter. The bumper cushions each stroke for smooth, repeatable high-cycle operation, and bodies gang side by side for multi-lane lines.
FAQ
What force does the MK20X30 produce, and at what pressure does it run?
In double acting trim this 20 mm bore gives a theoretical 157.1 N push at 0.5 MPa and 131.9 N on the pull side, with push always higher than pull. Its operating range is 0.15-1.0 MPa (22-145 psi) on air filtered to 40 um. For force at other pressures, work from the datasheet thrust table.
How does the six-direction mounting help in a real build?
The square body fixes from the front, back, left, right, top or bottom, so you can bolt it wherever the machine plate has room, and identical cylinders mount side by side to gang clamps or stoppers in a compact row. This keeps fixture layouts small and lets one rail carry multiple cylinders.