Airtac MK Series Multi-position Locking Cylinder MK20X5
The AirTAC Airtac MK Series Multi-position Locking Cylinder MK20X5 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 MK20X5
The AirTAC MK20X5 is a compact multi-mount cylinder whose square body can be fixed from 6 directions - front, back, left, right, top and bottom - and mounted side by side with further cylinders to save space. As a double acting MK (no-rotating) cylinder with a 20 mm bore and a very short 5 mm stroke, it gives a theoretical push force of 157.1 N at 0.5 MPa over a tiny travel, with the fixed rod and no-rotating plate preventing rod rotation. Cushioning is a bumper, and magnetic-switch slots are machined around the body.
This is a genuine AirTAC part. MK is the no-rotating counterpart of the MD standard multi-mount family. This SKU carries no magnet (no trailing S); magnet versions are listed separately in the range. Operating pressure is 0.15-1.0 MPa (22-145 psi) on air filtered to 40 um, temperature -20 to 70 C (0 to 150 C only with the optional high-temperature seal material), speed 30-500 mm/s. Exact dimensions for the 5 mm stroke are confirmed from the datasheet on request.
Airtac MK Series Multi-position Locking Cylinder MK20X5 Technical Specifications
| Model | Airtac MK Series Multi-position Locking Cylinder MK20X5 |
|---|---|
| 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
The 20 mm bore provides about 157.1 N push at 0.5 MPa (131.9 N pull) - select it for force, not travel, since the 5 mm stroke only suits micro-adjustment, locking or ejection moves. MK prevents rod rotation; choose MD if rotation is acceptable. This is a double acting cylinder: air extends and retracts the rod. The 5 mm stroke is well inside the 20 mm bore's table (up to 60 mm), and the short body cover means you should always stay within the datasheet stroke range rather than ordering an over-long stroke. No magnet on this SKU (no S suffix). Port is M5x0.8, PT thread (G available). For side-load limits and exact body dimensions, confirm with us from the datasheet.
Applications
Micro-stroke part clamping
Apply a firm, non-rotating 157 N clamp over a 5 mm travel to lock small workpieces against a datum - the 6-direction fixing lets the compact body sit flush inside the clamp pocket.
Precision stopper adjustment
Use the 5 mm stroke as a fine positional nudge on an indexing fixture or gauge station, where the no-rotating rod keeps the setting point exactly where you set it.
Short-lift part release
Eject or release small components from a nest with a very short, square, non-rotating push - several MK20X5 bodies can be mounted side by side under a multi-cavity nest.
FAQ
What does the model code MK20X5 mean, and does it include a magnet?
MK is the no-rotating multi-mount family, 20 is the 20 mm bore, X5 is the 5 mm stroke, and there is no trailing S - so this SKU is without a magnet. If you need magnetic position detection, order the S version (for example MK20X5S) instead; the magnet is an option, never a standard fit.
How does the no-rotating feature work on the MK20X5?
Inside the MK body, a fixed rod and a no-rotating plate (with brass bushing) mechanically stop the piston rod from turning as it strokes. That keeps pads, gates or stops square to the work - something the standard MD multi-mount cylinder does not do, since its rod is free to rotate.