Airtac MTK Multi-position Locking Cylinder MTK25X20
The AirTAC MTK Multi-position Locking Cylinder MTK25X20 is a genuine MK multi-mount cylinder (single acting, pull type), 25 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 144.4 N of pull 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, pull type
- SeriesMK (no-rotating)
- Bore25 mm
- Pull thrust @0.5 MPa144.4 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 MTK Multi-position Locking Cylinder MTK25X20
The AirTAC MTK25X20 is a compact square-body multi-mount cylinder from the MK family. Its body can be fixed from six directions - front, back, left, right, top and bottom - and units mount side by side to save space, with magnetic-switch slots around the body. This version is single acting of the pull type: air performs the pull stroke and the internal spring returns the rod, which suits a spring-extended pin or stopper that must be retracted by air. The 25 mm bore runs on 0.2-1.0 MPa (28-145 psi) filtered air, travels at 50-500 mm/s and is cushioned by a bumper. Because this is a pull-type cylinder, its thrust is developed on the pull side, which is lower than the push side - confirm the exact pull-side figure from the datasheet.
This is a genuine AirTAC part. The MK family is the no-rotating version of the multi-mount range: a plate, brass bushing and fixed rod stop the rod from turning, so an attached fixture or blade stays square to the body. The code MTK25X20 has no trailing S, so this SKU does not carry a magnet, and the PT thread is the standard port option for this 25 mm bore. We confirm overall dimensions, rod detail and sizing from the datasheet on request.
Airtac MTK Multi-position Locking Cylinder MTK25X20 Technical Specifications
| Model | Airtac MTK Multi-position Locking Cylinder MTK25X20 |
|---|---|
| Type | Multi-mount cylinder, single acting, pull type |
| Series | MK (no-rotating) |
| Bore | 25 mm |
| Pull thrust @0.5 MPa | 144.4 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
Pick MK over MD when rod rotation must be prevented; the no-rotating plate and fixed rod hold orientation, while MD versions allow the rod to turn. This is a single-acting pull-type unit: air draws the rod in and the spring sends it back out. If you need force in both directions choose a double-acting MK, or an MSK push type where air should extend the rod. At 20 mm the stroke sits at the top of the single-acting range, so it is the longest travel this compact design offers - avoid strokes beyond it, as the covers limit travel. There is no magnet on this SKU; choose an S-suffixed code if you need switch sensing. The ports are PT thread, with G thread available on request. Route any side-load question to us, since allowable values come from the datasheet.
Applications
Conveyor release stopper
Bolted under the conveyor rail, the pull-type action draws a stopper blade down with air to let a part pass, then the spring lifts it back to block the flow. The six-way body fits the shallow space under the frame.
Fixture part ejection
In a machining fixture, the no-rotating rod drives a flat ejector plate that stays aligned through every stroke; air pulls the finished part free of its nest and the spring retracts the plate for loading. Units sit side by side on multi-nest plates.
Spring-extend sensor riser
The spring holds a small flag or part in the raised position, and the air-powered pull stroke lowers it on demand - a simple vertical up-down job. The compact body fixes from the top or bottom of the bracket where space is tight.
FAQ
Is MTK25X20 the same as a push-type single-acting cylinder?
No. MTK is the pull type: air performs the pull stroke and the internal spring returns the rod, so the working force is developed on the pull side, which is lower than the push side. If you need air to extend the rod, choose the push-type MSK instead, or a double-acting MK for force in both directions.
How far can the rod travel on this model?
The 20 mm stroke is at the top of the single-acting range, which stops at 20 mm. The compact square covers are not intended for over-long travel, so if you need a longer stroke, consider the double-acting MK family, whose bores accept longer strokes. Exact dimensions and side-load limits come from the datasheet.