Airtac MTK Multi-position Locking Cylinder MTK20X5S
The AirTAC MTK Multi-position Locking Cylinder MTK20X5S is a genuine MK multi-mount cylinder (single acting, pull type), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 92.3 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)
- Bore20 mm
- Pull thrust @0.5 MPa92.3 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 MTK20X5S
The MTK20X5S is a genuine AirTAC compact multi-mount cylinder with a 20 mm bore and a very short 5 mm stroke. Its square body fixes from six directions - front, back, left, right, top and bottom - so units can be mounted side by side to save space, with magnetic-switch slots around the body and high guide precision without added lubrication. This is a single-acting, pull-type cylinder: compressed air does the work in one direction and a spring returns the piston, running at 50-500 mm/s with a bumper as the cushion. It operates on air filtered to 40 um at 0.2-1.0 MPa (28-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to 70 C (up to 150 C only with the optional high-temperature seal material).
This belongs to AirTAC's MK family, so a no-rotating plate, brass bushing and fixed rod stop the piston rod from turning - the rod keeps its orientation without an external anti-rotation guide. As the SKU shows, this model includes a magnet for position sensing, readable from the switch slots around the body. Typical materials are an aluminium-alloy body, covers and piston, stainless or S45C rod, NBR seals, a TPU bumper and a sintered NdFeB magnet; bore-specific detail is in the datasheet, which we will confirm for you on request along with dimensions and sizing.
Airtac MTK Multi-position Locking Cylinder MTK20X5S Technical Specifications
| Model | Airtac MTK Multi-position Locking Cylinder MTK20X5S |
|---|---|
| Type | Multi-mount cylinder, single acting, pull type |
| Series | MK (no-rotating) |
| Bore | 20 mm |
| Pull thrust @0.5 MPa | 92.3 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 20 mm bore when you need a compact no-rotating pull cylinder; the exact pull-side thrust for this single-acting model should be confirmed from the datasheet. MTK is the right pick when the rod must not rotate; if rotation is acceptable and double-acting force in both directions is needed, an MD multi-mount cylinder is the alternative. The 5 mm stroke suits short-travel jobs such as indexing pins and clamps, and the short covers reward keeping the stroke brief rather than stretching it. The trailing S means this SKU includes a magnet for position sensing; drop the S if you do not need it. Port thread is PT as shown, with G available.
Applications
Position-sensed stopper on a conveyor
A spring-extend stopper pin holds small products at a gate on a conveyor; air retracts the non-rotating rod to release flow, and the built-in magnet lets a sensor confirm the pin is down before the next part advances.
Indexing pin in a rotary fixture
In an indexing dial or rotary table, the cylinder spring-extends a locating pin into the next station's hole; the non-rotating rod keeps the pin tip true, and the magnet confirms lock-in before the cycle continues.
Part-present check in an assembly jig
Mounted side by side in a compact assembly jig, the 5 mm pull stroke acts as a short-travel part-present probe; the magnet provides a signal when the pin is retracted so the controller verifies loading.
FAQ
What does MTK20X5S decode to, and how does the magnet help?
MTK is AirTAC's no-rotating, single-acting pull-type multi-mount cylinder: 20 mm bore, 5 mm stroke, with a magnet (the trailing S) and PT port thread. In a pull type, air pressure retracts the rod and the spring extends it. The magnet works with the switch slots around the body so a sensor can confirm rod position - useful for verifying a stopper is down or a pin is seated. Drop the S for an unmagnetized unit.
How does the no-rotating design differ from a standard multi-mount cylinder?
In the MK family, a plate, brass bushing and fixed rod stop the piston rod from turning, so tooling like stopper blades and indexing pins stays square without an external guide. The MD family is the standard multi-mount with the same six-direction, side-by-side mounting but with rod rotation allowed. Keep the 5 mm stroke matched to the task given the short covers; side load and dimensions come from the datasheet.