Airtac MKD Multi-position Clamping Cylinder MKD20X45S
The AirTAC Airtac MKD Multi-position Clamping Cylinder MKD20X45S is a genuine MK multi-mount cylinder (double rod), 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 rod
- 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 MKD Multi-position Clamping Cylinder MKD20X45S
The MKD20X45S is a genuine AirTAC multi-mount cylinder: a compact square-body unit that fixes from 6 directions (front, back, left, right, top and bottom) and can be mounted side by side to save space, with magnetic-switch slots around the body. This double-rod, double-acting, no-rotating model has a 20mm bore with a rod-side theoretical thrust of 131.9 N at 0.5 MPa and a 45mm stroke, cushioned by a bumper.
MK-family cylinders stop the rod from rotating via a no-rotating plate, brass bushing and fixed rod, so orientation-sensitive tooling stays aligned cycle after cycle. The trailing S means this SKU includes the magnet, and the port thread is PT with a G option available. Stroke-specific dimensions come from the datasheet; we confirm sizing on request.
Airtac MKD Multi-position Clamping Cylinder MKD20X45S Technical Specifications
| Model | Airtac MKD Multi-position Clamping Cylinder MKD20X45S |
|---|---|
| Type | Multi-mount cylinder, double rod |
| 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
Start with thrust: the 20mm bore delivers 131.9 N of rod-side theoretical thrust at 0.5 MPa on both strokes, since both sides of a double-rod cylinder work against the rod. MKD double rod suits jobs needing a working end at each side of the body, and the MK build is the right pick when the rod must not rotate. The 45mm stroke is within the 20mm bore table limit of 60mm, but remember the compact cover limits how long a stroke the body accepts. This SKU ships as coded with the magnet (S) and PT thread; choose G instead if your fittings are G-threaded.
Applications
Guided Press Fit Station
Bolt the body under a bench fixture and use the 45mm stroke to press or seat small components, with the no-rotating rod keeping the pressing face square.
Opposed Gripper Actuation
The two rods of the double-rod design move a pair of opposing clamp jaws in or out together on compact pick points where a standard cylinder body will not fit.
Index Table Lock Pin
Fix the body from the bottom of an indexing dial and extend the rod to lock each position, with rod rotation prevented so the lock stays true.
FAQ
Why does this SKU show an S at the end of MKD20X45S?
The trailing S means the cylinder is built with the magnet, so reed or solid-state magnetic switches can detect piston position in the slots around the body. Codes without an S are supplied without a magnet; the magnet is an option, not a standard feature.
What does fixing from 6 directions actually give me on a machine frame?
You can bolt the square body through the front, back, left, right, top or bottom faces, so one bore size serves horizontal, vertical and inverted positions and several units can sit side by side on a shared plate, saving panel space. Confirm per-stroke dimensions from the datasheet.