Airtac MKD Multi-position Clamping Cylinder MKD25X20S
The AirTAC Airtac MKD Multi-position Clamping Cylinder MKD25X20S 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 MKD25X20S
The MKD25X20S is a compact, square-bodied multi-mount cylinder that can be fixed from 6 directions (front, back, left, right, top and bottom), so cylinders can be mounted side by side to save space. Magnetic-switch slots run around the body, guide precision is high and no added lubricant is needed. As a double rod (MKD) variant in the no-rotating MK family, it has a rod on both ends of the piston, so it can clamp, press or eject from either side of the body. This 25 mm bore with a 20 mm stroke delivers 245.4 N of theoretical push thrust at 0.5 MPa (double-acting push figure for this bore), and the cushion is a bumper.
This is a genuine AirTAC part. The MK family is the no-rotating type: a fixed rod, plate and brass bushing stop the piston rod from turning, keeping the rod-end orientation constant through every stroke. This SKU carries the magnet option (the trailing S), so magnetic switches can be seated in the body slots. We confirm exact dimensions and sizing help from the datasheet on request.
Airtac MKD Multi-position Clamping Cylinder MKD25X20S Technical Specifications
| Model | Airtac MKD Multi-position Clamping Cylinder MKD25X20S |
|---|---|
| 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
Size the bore by thrust: this 25 mm bore gives 245.4 N theoretical push (206.2 N pull) at 0.5 MPa; step up or down only if the datasheet thrust for that bore fits the job. Choose MKD when you need a rod on both sides of a no-rotating body; the standard MK allows the same rotation-free action with a single rod. Stroke is 20 mm here, comfortably inside the 60 mm maximum for 20/25/32 mm bores, but note the short covers mean very long strokes are not practical; check the datasheet for your exact length.
The trailing S means this SKU includes the magnet; order the version without S if you do not need switch detection. Ports are M5x0.8 on this bore, with PT thread standard or G thread on request. Allowable side load is not quoted here; confirm it with us from the datasheet.
Applications
Two-sided small-parts clamping
The double rod pushes a clamp pad from both sides of the fixture, and the no-rotating plate keeps the pad square to the part through every 20 mm stroke.
Jig positioning without rod twist
Mounted top or bottom on a welding or assembly jig, the fixed rod stops the rod end from turning, so locating pins stay aligned stroke after stroke.
Indexing stopper on a rotary table
Body-mounted from 6 directions, the cylinder sits tight beside adjacent units; the magnet option feeds a position signal back to the controller at each index.
FAQ
Why pick MKD25X20S over a standard MK or MD cylinder?
MKD is the double-rod version of the no-rotating MK family: a rod extends from both ends of the piston, so one cylinder can clamp or eject from either side. Like all MK variants, a fixed rod and plate stop the rod from rotating. MD is the standard family and its rods may turn; MD has no no-rotating function.
Where do I find dimensions and side-load limits for this cylinder?
Overall dimensions depend on the stroke and are listed per model in the datasheet, along with allowable side load. We do not quote those figures here; confirm them from the datasheet or ask us and we will pull the MKD25X20S data for you.