Airtac MKD Multi-position Clamping Cylinder MKD25X40S
The AirTAC Airtac MKD Multi-position Clamping Cylinder MKD25X40S is a genuine MK multi-mount cylinder (double rod), 25 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 245.4 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)
- Bore25 mm
- Push thrust @0.5 MPa245.4 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 MKD25X40S
The AirTAC MKD25X40S is a compact square-body multi-mount cylinder that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side to save space. With a 25 mm bore, 40 mm stroke and a double-rod, double-acting design, it delivers a theoretical push force of 245.4 N and 206.2 N on the pull side at 0.5 MPa, with a rod on each end for two-sided work. Cushioning is provided by a bumper, and it runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, from -20 to 70 C.
This is a genuine AirTAC part from the MK family, the no-rotating version of the multi-mount cylinder: a fixed rod and plate stop the piston rod from turning under load. The trailing S in the model code means this SKU includes a magnet, so magnetic switches can be seated in the slots around the body for position detection. We can confirm exact dimensions and sizing from the datasheet on request.
Airtac MKD Multi-position Clamping Cylinder MKD25X40S Technical Specifications
| Model | Airtac MKD Multi-position Clamping Cylinder MKD25X40S |
|---|---|
| Type | Multi-mount cylinder, double rod |
| Series | MK (no-rotating) |
| Bore | 25 mm |
| Push thrust @0.5 MPa | 245.4 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
Choose the 25 mm bore when you need up to 245.4 N theoretical push (206.2 N pull) at 0.5 MPa. The MKD double-rod variant gives you a rod on both ends, unlike the single-rod MK, single-acting MSK/MTK, or adjustable-stroke MKJ. The 40 mm stroke fits this bore's double-acting table, which runs up to 60 mm for bores 20/25/32; the short covers mean very long strokes are best avoided. The S suffix means the magnet is built in for switch-based end-position sensing, and the port thread is PT (specify G if you need the alternate thread). Side-load figures are not quoted here; confirm them from the datasheet.
Applications
Guided part orientation
Use the no-rotating double rods to flip or square up misaligned parts in a packaging lane, with magnet-switched end positions confirming each stroke is complete.
Pallet-gate lift and drop
Mount the MKD25X40S under a lift gate so rods on both ends balance the motion, while magnetic switches signal gate-open and gate-closed to the controller.
Two-sided ejection station
Fix the body from 6 directions inside a compact machine wall and eject finished parts from either end, side by side with neighboring stations to save space.
FAQ
What does the S at the end of MKD25X40S mean?
The trailing S means this cylinder is built with a magnet in the piston, so magnetic switches can be clipped into the slots around the body to signal end-of-stroke positions. A model code without the S, such as MKD25X40, is supplied without a magnet.
Can the rod turn under a side load?
No. MK-family cylinders like the MKD25X40S are no-rotating: a fixed rod and no-rotating plate stop the piston rod from turning, which keeps tooling oriented. How much side load the rod can carry is not quoted as a general figure; confirm it from the datasheet for your application.