Airtac MSK Multi-position Locking Cylinder MSK25X5
The AirTAC Airtac MSK Multi-position Locking Cylinder MSK25X5 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
- 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 MSK Multi-position Locking Cylinder MSK25X5
The MSK25X5 is a compact multi-mount cylinder with a square body that can be fixed from 6 directions - front, back, left, right, top and bottom - and mounted side by side with identical units to save space on a machine frame. This single-acting, push-type unit extends with air and returns by internal spring, and its 25 mm bore delivers about 179.1 N of theoretical push force at 0.5 MPa. The 5 mm stroke suits short-throw jobs such as clamping or part presence, with a bumper for cushioning.
This is a genuine AirTAC part in the MK family: a no-rotating plate, bushing and fixed rod stop the piston rod from turning, so the rod end stays square to the work. Air supply should be filtered to 40 um, proof pressure is 1.5 MPa (215 psi), and temperature range is -20 to 70 C (0 to 150 C only with the optional high-temperature seal material). This SKU is without a magnet, exactly as shown. We confirm dimensions and sizing from the datasheet on request.
Airtac MSK Multi-position Locking Cylinder MSK25X5 Technical Specifications
| Model | Airtac MSK Multi-position Locking Cylinder MSK25X5 |
|---|---|
| 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 | Without magnet |
| 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 25 mm bore when you need roughly 179.1 N of push at 0.5 MPa; smaller 6-16 mm bores give less force, while the 32 mm bore reaches about 281.5 N. MSK is single-acting push: air extends the rod, a spring returns it - pick double-acting MK, double-rod MKD, single-acting pull MTK or adjustable-stroke MKJ if the cycle differs. The 5 mm stroke sits well inside the single-acting table limit of 20 mm; keep strokes short on this compact body and avoid over-long selections. This SKU carries no magnet (no S suffix); choose MSK25X5S if you need magnetic-switch detection, and PT or G thread at order time. Side-load limits are not listed here - ask us to check the datasheet.
Applications
Small-parts clamp on an assembly jig
A short 5 mm push stroke clamps a small bracket or cover against a jig stop, and the no-rotating rod keeps the contact pad square so it lands flat every cycle.
Conveyor gate stopper
Mounted under or beside a light conveyor, the cylinder pops up to stop a flowing part at a station; the square body fixes from 6 directions for tight installs.
Jig positioning pin
The rod pushes a locating pin into a drilled nest to index a workpiece, with the fixed rod preventing pin rotation during extend.
FAQ
What does MSK mean on this cylinder?
MSK is the single-acting, push-type member of AirTAC's MK multi-mount family. Air pressure extends the rod and an internal spring returns it, and the MK no-rotating plate and fixed rod stop the rod from turning. The plain MD family is the standard rotating-rod version, so MSK is the right pick where the rod end must stay oriented.
How long a stroke can I use, and where do side-load figures come from?
Single-acting MSK cylinders are catalogued up to 20 mm stroke, and this compact body performs best with short strokes - an over-long stroke is worth avoiding, so confirm your layout against the datasheet. Allowable side-load values and stroke-specific dimensions are in the datasheet; we can confirm them for you on request.