Airtac MKD Multi-position Clamping Cylinder MKD25X40
The AirTAC Airtac MKD Multi-position Clamping Cylinder MKD25X40 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
- 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 MKD Multi-position Clamping Cylinder MKD25X40
The AirTAC MKD25X40 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 rod attachment available on both ends. 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, which is the no-rotating version of the multi-mount cylinder: a fixed rod and plate stop the piston rod from turning, so the load stays oriented. This SKU has no magnet (no trailing S), so position sensing via the body's switch slots is not supported as shown. We can confirm exact dimensions and sizing from the datasheet on request.
Airtac MKD Multi-position Clamping Cylinder MKD25X40 Technical Specifications
| Model | Airtac MKD Multi-position Clamping Cylinder MKD25X40 |
|---|---|
| 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 | 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
Choose the 25 mm bore when you need up to 245.4 N theoretical push (206.2 N pull) at 0.5 MPa; smaller bores give less force. The MKD double-rod variant gives you a working rod on both ends, unlike single-rod MK, single-acting MSK/MTK, or adjustable-stroke MKJ. The 40 mm stroke sits within this bore's table, which goes up to 60 mm for double-acting bores 20/25/32, so there is room to go longer, but remember the covers are short: keep the stroke realistic for the body. This SKU has no magnet (add S for magnetic switch detection) and PT thread (specify G for the alternate port thread). Side-load capacity is not quoted here; confirm it from the datasheet.
Applications
Bi-directional part stopper
The double rods let one MKD25X40 stop or position parts approaching from either side of a conveyor lane, while the no-rotating plate keeps the stop face square to the flow.
Symmetric clamping fixture
With rods on both ends, a single cylinder can press or locate a workpiece between two pads in a drilling or assembly jig, fixed from 6 directions inside tight fixture plates.
Paired indexing pushers
Mount several MKD25X40 bodies side by side to push parts into index positions at two points at once, with no rod rotation to twist the pusher plates.
FAQ
Why pick MKD instead of a standard MK cylinder?
MKD is the double-rod version of the MK family: it has a working rod on both ends of the body. Like all MK cylinders it is no-rotating, so a fixed rod and plate stop the rod from turning. Use MKD when you need to act on a load from both sides of the body, or want mirrored tooling at each end.
How is this cylinder mounted in a tight machine frame?
The square body can be fixed from 6 directions (front, back, left, right, top and bottom), and bodies can sit side by side to save space, with magnetic-switch slots around the body. Exact overall dimensions depend on the stroke, so confirm them from the datasheet before designing the mounting pocket.