Airtac MK Series Multi-position Locking Cylinder MK16X20S
The AirTAC Airtac MK Series Multi-position Locking Cylinder MK16X20S is a genuine MK multi-mount cylinder (double acting), 16 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 100.5 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)
- Bore16 mm
- Push thrust @0.5 MPa100.5 N
- Operating pressure0.15 - 1.0 MPa (22 - 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 MK Series Multi-position Locking Cylinder MK16X20S
The MK16X20S 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 to save space on crowded panels. It is a double acting, no-rotating cylinder with a 16 mm bore and 20 mm stroke; at 0.5 MPa it delivers a theoretical push force of 100.5 N (the pull side is slightly lower), with cushioning by TPU bumper. The built-in magnet works with the switch slots around the body for position detection, and the cylinder runs on air filtered to 40 um at 0.15-1.0 MPa and -20 to 70 C, at 30-500 mm/s.
This is a genuine AirTAC part. The MK family stops the rod turning using a fixed rod, no-rotating plate and brass bushing (typical - see the datasheet for bore-specific detail), while the MD family is the standard version where rotation is allowed. The trailing S in this SKU means it is supplied with a magnet; the same code without S omits the magnet. We can confirm overall dimensions and sizing from the datasheet on request.
Airtac MK Series Multi-position Locking Cylinder MK16X20S Technical Specifications
| Model | Airtac MK Series Multi-position Locking Cylinder MK16X20S |
|---|---|
| Type | Multi-mount cylinder, double acting |
| Series | MK (no-rotating) |
| Bore | 16 mm |
| Push thrust @0.5 MPa | 100.5 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| 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
Size the bore for force: at 0.5 MPa this 16 mm bore gives 100.5 N theoretical push (86.4 N pull), versus 39.3 N from a 10 mm bore. Choose MK when the rod must not rotate, or the MD family if rotation is acceptable. This model is double acting at 30-500 mm/s with a 20 mm stroke, within the 50 mm limit for bore 16 - and the S suffix adds the magnet you need for end-position sensing on a PLC input. Ports are M5x0.8 with PT or G thread; for allowable side load, confirm from the datasheet or ask us.
Applications
Press-fit verification
A pair of these no-rotating cylinders press labels or bearings into housings; the magnet and switch slots give the PLC a part-present signal at each end of stroke.
Sorter divert fingers
Mounted along a sorting conveyor, the cylinders flip divert fingers between lanes; side-by-side mounting keeps the bank narrow and the rod orientation fixed.
Tooling clamps on a CNC fixture
The MK16X20S clamps small workpieces on a machining fixture, its magnet confirming clamp-open and clamp-closed states in the cycle logic.
FAQ
What does the S in MK16X20S give me over the plain MK16X20?
The S suffix means the cylinder is supplied with a magnet, so magnetic switches seated in the slots around the body can report rod position to your controller. The plain MK16X20 is the same cylinder without the magnet. Which you choose is purely a sensing decision - the bore, stroke and pressure ratings are identical.
How many directions can I fix this cylinder from, and what limits the stroke?
The square body fixes from six directions - front, back, left, right, top and bottom - so cylinders can sit side by side or face any way the machine needs. The covers are short by design: this 16 mm bore family tops out at 50 mm stroke, so avoid specifying more travel than the job needs, and take allowable side load and exact dimensions from the datasheet.