Airtac MTK Multi-position Locking Cylinder MTK25X5S
The AirTAC Airtac MTK Multi-position Locking Cylinder MTK25X5S 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
- 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 MTK Multi-position Locking Cylinder MTK25X5S
The MTK25X5S is a compact square-body multi-mount cylinder that fixes from six directions, front, back, left, right, top and bottom, and mounts side by side with other cylinders to save space. This version is single acting, pull type: one air connection retracts the rod and the return is handled inside the cylinder, so there is no second supply line to plumb. The 25 mm bore runs at 0.2-1.0 MPa (28-145 psi) with speeds of 50-500 mm/s, the 5 mm stroke gives a very short travel for quick release jobs, and the cushion is a bumper that absorbs end-of-stroke impact.
This is a genuine AirTAC part. The MK family is the no-rotating version of the multi-mount range: a fixed rod and plate stop the rod from turning, unlike the standard MD family where the rod is free to rotate. The trailing S in this code means the cylinder carries a magnet, so a reed or solid-state switch seated in the body slots can detect piston position. Exact dimensions and sizing for this stroke are confirmed from the datasheet on request.
Airtac MTK Multi-position Locking Cylinder MTK25X5S Technical Specifications
| Model | Airtac MTK Multi-position Locking Cylinder MTK25X5S |
|---|---|
| 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 | With magnet (S) |
| 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
Choose the 25 mm bore for this force class: single-acting pull-side force is lower than the push side, so confirm the exact figure from the datasheet before sizing. MTK is the no-rotating, single-acting pull member of the MK family; pick the MD family if rotation is acceptable or wanted. The 5 mm stroke is well inside the single-acting limit of up to 20 mm, and the short covers caution against specifying an over-long stroke in this body style. This SKU includes the magnet (trailing S); the same cylinder without sensing is MTK25X5. Thread is PT by default with G available. Allowable side load is not published here; ask us for the datasheet.
Applications
Conveyor stopper gate
Placed beside a light conveyor, the rod blocks small parts by default and one air line pulls it back to release them; the on-board magnet lets a switch in the body slot confirm the gate has retracted.
Pin pull on a placement head
On a compact pick-and-place head, the short pull stroke retracts a locating pin on demand, and the no-rotating plate keeps the pin aligned with the tooling hole cycle after cycle.
Jig indexing with feedback
Fixed from the side or top of a small assembly jig, these cylinders mount flush side by side to index parts, and the magnet signal confirms each pin is home before the next station runs.
FAQ
What does the S at the end of MTK25X5S mean?
The trailing S means this cylinder is built with a magnet, so a switch seated in the slots around the body can sense piston position. The same cylinder without a magnet is sold as MTK25X5; the magnet is an option on the multi-mount range, not a standard feature on every unit.
Why is the stroke so short, and can I order a longer one?
Single-acting multi-mount cylinders are limited to strokes up to 20 mm, and the short covers of this compact body caution against over-long strokes. A 5 mm stroke suits quick release and retention jobs; for longer travels confirm the available options in the datasheet or ask us.