Airtac MKJ Adjustable Cylinder MKJ20X5-10S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ20X5-10S 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 MKJ20X5-10S
The MKJ20X5-10S is an AirTAC multi-mount cylinder: a compact square body that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side with other cylinders to save space. This adjustable-stroke, double-acting no-rotating variant has a 20 mm bore and a short 5 mm stroke with an added 10 mm adjustable range, delivering about 157.1 N of theoretical push force at 0.5 MPa, with a bumper as the cushion. The trailing S means the magnet is built in for magnetic-switch detection.
This is a genuine AirTAC part. The MK family is the no-rotating version of the multi-mount design, where a fixed rod and plate stop the rod turning; the MD family is the standard type where rotation is allowed. We confirm exact dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ20X5-10S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ20X5-10S |
|---|---|
| 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
The 20 mm bore gives about 157.1 N of theoretical push at 0.5 MPa, suitable for short clamps and stops. Choose MK when the rod must not rotate and MD when rotation is acceptable. Acting options are double acting, single-acting push, single-acting pull, double rod and adjustable-stroke; this MKJ is double acting with a 10/20/30 mm adjustable range on top of the base stroke. Keep the base stroke within the bore 20 table (up to 60 mm) and respect the short cover: over-long strokes reduce rigidity, so a 5 mm stroke suits dense fixtures. This SKU includes the magnet (S); thread is PT, with a G-thread option available. Route side-load questions to us.
Applications
Switch-monitored micro clamp
The magnet confirms clamped or retracted position via a switch in the body slot, while the no-rotating rod keeps the clamp face aligned on small parts.
Indexed jig stopper
A 5 mm adjustable pop-up stopper locates workpieces between indexing steps, with the built-in magnet confirming the stopper is down before cycling.
Compact press-assist station
The short 6-way-fixed body slots side by side in a benchtop press nest, delivering a short controlled push on light subassemblies.
FAQ
What is the difference between MKJ20X5-10S and MKJ20X5-10?
Only the magnet. The trailing S on MKJ20X5-10S means the cylinder includes a magnet for magnetic-switch detection; the version without S has no magnet. Both share the same 20 mm bore, 5 mm base stroke, 10 mm adjustable range, double-acting no-rotating design and PT thread.
Can I get exact dimensions and side-load limits for this cylinder?
Overall dimensions depend on the stroke, and side-load limits are given per model in the AirTAC datasheet, so we do not quote them as general figures. Contact us and we will confirm the datasheet details for the MKJ20X5-10S, including mounting hole patterns for the 6-direction fixing.