Airtac MK Series Multi-position Locking Cylinder MK25X80
The AirTAC Airtac MK Series Multi-position Locking Cylinder MK25X80 is a genuine MK multi-mount cylinder (double acting), 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 acting
- 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 MK Series Multi-position Locking Cylinder MK25X80
The AirTAC MK25X80 is a no-rotating multi-mount cylinder: a compact square-body actuator you can fix from six directions (front, back, left, right, top and bottom) and mount side by side to save space. This 25 mm bore, double-acting unit gives about 245.4 N of theoretical push force at 0.5 MPa (206.2 N on the pull side) and cushions with a bumper. Magnetic-switch slots surround the body, and guide precision is high enough that no added lubricant is required.
This is a genuine AirTAC part. In the MK family a no-rotating plate, brass bushing and fixed rod stop the piston rod from turning, so attached plates and tooling stay square to the load. The code has no trailing S, so this SKU is supplied without a magnet; S-coded versions add one. Porting is M5x0.8 with PT thread. Overall dimensions vary with stroke, so we confirm sizing from the datasheet on request.
Airtac MK Series Multi-position Locking Cylinder MK25X80 Technical Specifications
| Model | Airtac MK Series Multi-position Locking Cylinder MK25X80 |
|---|---|
| Type | Multi-mount cylinder, double acting |
| 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
Force comes from the bore: this 25 mm cylinder pushes about 245.4 N at 0.5 MPa; choose 32 mm for 402.1 N or 16 mm for 100.5 N on lighter loads. MK prevents rod rotation where MD allows it. Acting is double, so air drives both strokes. Standard double-acting strokes for bores 20-32 run to 60 mm, and 80 mm is a long-stroke build, so confirm availability and the cover option from the datasheet before ordering; a shorter stroke keeps the compact square body short. No trailing S means no magnet on this SKU; the thread is PT, with G as the alternate.
Applications
Jig positioning
Push a workpiece against a locator in a welding or assembly jig. Fixing from any of the six body faces lets the cylinder sit wherever the fixture has room, and the non-rotating rod keeps the push pad aligned.
Indexing feed
Advance parts one station at a time on a rotary or linear index table. Bodies mounted side by side serve adjacent stations without spreading the layout, and the plate held square by the fixed rod feeds parts squarely.
Line stopper
Extend a stopper to hold product at a process point on the conveyor. The 6-direction fixing bolts the body to the side, top or frame rail, and the non-rotating rod stops the stopper face from twisting.
FAQ
Does MK25X80 include a position-sensing magnet?
No. The code has no trailing S, so this SKU is supplied without a magnet. If you need switch-based end-of-stroke detection, order an S-coded version such as MK25X80S; magnet fit is optional and shown by the code.
How does the six-direction fixing help my machine layout?
The square body can be fixed from the front, back, left, right, top or bottom, so it bolts onto whichever face of your frame or fixture is free. Several bodies can also sit side by side, which packs multiple functions into a small footprint.