Airtac MSK Multi-position Locking Cylinder MSK25X15S
The AirTAC Airtac MSK Multi-position Locking Cylinder MSK25X15S is a genuine MK multi-mount cylinder (single acting, push type), 25 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 179.1 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, single acting, push type
- SeriesMK (no-rotating)
- Bore25 mm
- Push thrust @0.5 MPa179.1 N
- Operating pressure0.2 - 1.0 MPa (28 - 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 MSK Multi-position Locking Cylinder MSK25X15S
The MSK25X15S is a compact MK-family no-rotating multi-mount cylinder from AirTAC. Its square body can be fixed from 6 directions (front, back, left, right, top, bottom) and mounted side by side, so several cylinders can sit flush against each other to save space on a machine panel. Magnetic-switch slots run around the body for position-sensing switches. This model is single acting, push type: compressed air drives the rod out, and the 25mm bore delivers a theoretical push thrust of 179.1 N at 0.5 MPa, with a 15mm stroke suited to short, positive clamping or ejection motions. Cushioning is a bumper, and no added lubricant is needed thanks to the high guide precision.
This is a genuine AirTAC part in the MK no-rotating series, where a fixed rod and plate stop the piston rod from turning - use MK instead of the standard MD family whenever the rod or its end tool must stay oriented. The trailing S in the SKU shows this unit is supplied WITH a magnet (the magnet is optional on MD/MK, not standard). Operating pressure is 0.2-1.0 MPa (28-145 psi) with a 1.5 MPa proof pressure. Overall dimensions are per stroke, so confirm exact sizing and bore-specific detail from the datasheet - we are happy to provide it on request.
Airtac MSK Multi-position Locking Cylinder MSK25X15S Technical Specifications
| Model | Airtac MSK Multi-position Locking Cylinder MSK25X15S |
|---|---|
| Type | Multi-mount cylinder, single acting, push type |
| Series | MK (no-rotating) |
| Bore | 25 mm |
| Push thrust @0.5 MPa | 179.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.2 - 1.0 MPa (28 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 50 - 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 25mm bore when you need around 179.1 N of theoretical push at 0.5 MPa; smaller bores (down to 6mm) suit lighter spring-return ejection tasks. Pick MK over MD when rotation must be prevented; MD is the standard family where rotation is allowed. This SKU is single acting push type (air out, spring-return style retraction); double acting (MK), single acting pull (MTK), double rod (MKD) and adjustable-stroke (MKJ) variants also exist. Single-acting strokes run up to 20mm, so 15mm sits comfortably inside the table - note the short cover means an over-long stroke is not an option on this body. The trailing S means the magnet for switch sensing is included. Threads are PT by default; order the G-thread version if your ports need it.
Applications
Small-parts clamping
Side-by-side mounting lets a row of 25mm push cylinders clamp small housings or brackets in a fixture, with the no-rotating rod keeping clamp pads square to the part.
Gate and stopper actuation
The 6-direction fixing lets this cylinder bolt onto a conveyor frame top or side as a compact push-out stopper or diverting gate, retracting under spring return when air is lost.
Short-stroke ejection
A 15mm push stroke ejects or kickoff-releases finished small parts from a nest or chute pocket, with the magnet signaling home position via a slot-mounted switch.
FAQ
What does the S in MSK25X15S mean?
The trailing S shows this unit is supplied WITH a magnet, which lets the magnetic-switch slots around the body detect rod position. The magnet is an optional feature on AirTAC MD/MK cylinders, not a standard fit - SKUs without the trailing S are supplied without it. The rest of the code decodes as MK (no-rotating family), 25mm bore, 15mm stroke, and PT thread by default (G on request).
How many ways can I mount this cylinder, and what is the stroke limit?
The multi-mount square body can be fixed from 6 directions - front, back, left, right, top and bottom - and units can be mounted side by side to save space. Keep the stroke short: on single-acting MK bodies the compact cover limits strokes to 20mm maximum, so an over-long stroke is not available. Side-load capability and exact per-stroke dimensions come from the datasheet - confirm them with us before designing the fixture.