
The AirTAC Airtac MTK Multi-position Locking Cylinder MTK20X15S 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.
The MTK20X15S is a genuine AirTAC multi-mount cylinder: a compact square-body unit that fixes from six directions - front, back, left, right, top and bottom - and mounts side by side with sister cylinders to save space, with magnetic-switch slots machined around the body. This variant is the 20mm bore, 15mm stroke, single acting pull type: a single air line does the work, which keeps plumbing lean on crowded fixtures. It runs on air filtered to 40 um at 0.2-1.0 MPa (28-145 psi), handles -20 to 70 C, cushions with a bumper, and operates at 50-500 mm/s. Confirm the pull-side thrust figure for this single acting variant from the datasheet before sizing.
This is a genuine AirTAC part from the MK family, the no-rotating range: a fixed rod, no-rotating plate and brass bushing stop the rod from turning, so attached plates and levers keep their orientation. The trailing S in the model code means this SKU is supplied with a magnet for position sensing, which is an option, not a standard fitting on every unit. Typical construction is an aluminium-alloy body, stainless or S45C rod and NBR seals. We confirm dimensions and sizing from the datasheet on request.
| Model | Airtac MTK Multi-position Locking Cylinder MTK20X15S |
|---|---|
| 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.
Pick the 20mm bore when a compact single acting pull cylinder suits the duty; as a pull-type variant, its thrust at your working pressure should be confirmed from the datasheet rather than estimated from push-side figures. MK is the correct family when rod rotation must be prevented; MD allows it. Acting options in the series are double acting (MK), single acting push (MSK), single acting pull (MTK, this unit), double rod (MKD) and adjustable stroke (MKJ). The 15mm stroke is inside the 20mm single acting maximum; the short covers caution against over-long strokes, and side-load limits should be checked with us. The trailing S gives you a magnet for switch detection, and the PT thread can be swapped for G on request via the matching SKU.
Bolt the body to the side or underside of a conveyor and hang a stopper flag on the non-rotating rod; the magnet lets a switch confirm the stopper has deployed.
Row several units side by side along a fixture rail to hold and release workpieces in sequence, with the 6-direction fixing letting each cylinder share one mounting rail.
Mount the cylinder vertically under a slide gate with the fixed rod keeping the gate plate from twisting as it lifts, using a single air line for the pull action.
The trailing S means the cylinder is supplied with a magnet, so reed or Hall-effect switches placed in the slots around the square body can detect rod position. The magnet is an option on the MD/MK range, not a standard feature, so order the S suffix only if you need position sensing.
MK cylinders add a fixed rod, no-rotating plate and brass bushing that stop the piston rod from turning, so plates, levers and stops mounted on the rod stay square to the fixture. Combined with mounting from any of six directions and side-by-side installation, this suits compact gating, stopping and positioning work. Exact dimensions and side-load data come from the datasheet.