Airtac MK Series Multi-position Locking Cylinder MK20X60S
The AirTAC Airtac MK Series Multi-position Locking Cylinder MK20X60S is a genuine MK multi-mount cylinder (double acting), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 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)
- Bore20 mm
- Push thrust @0.5 MPa157.1 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 MK20X60S
The MK20X60S is an AirTAC no-rotating multi-mount cylinder with a 20 mm bore and a 60 mm stroke. Its compact square body fixes from six directions - front, back, left, right, top and bottom - so cylinders mount side by side to save space, with magnetic-switch slots machined around the body. As a double acting cylinder it pushes and pulls with filtered air, giving a theoretical push force of about 157.1 N at 0.5 MPa on the bore-20 piston (pull is about 131.9 N), running 30-500 mm/s and cushioning end of stroke with a bumper.
This is a genuine AirTAC part. The MK family adds a no-rotating plate, bushing and fixed rod (typical materials route to the datasheet) so the piston rod cannot turn. The trailing S means this SKU includes a magnet, so reed or Hall-effect switches can be seated in the body slots for end-position detection; the magnet is an option, not a fitting on every unit. Thread is PT, bore 20 ports are M5x0.8, operating pressure is 0.15-1.0 MPa (22-145 psi), and temperature is -20 to 70 C (up to 150 C only with the optional high-temperature seal material). We confirm dimensions and sizing from the datasheet on request.
Airtac MK Series Multi-position Locking Cylinder MK20X60S Technical Specifications
| Model | Airtac MK Series Multi-position Locking Cylinder MK20X60S |
|---|---|
| Type | Multi-mount cylinder, double acting |
| Series | MK (no-rotating) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 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
Bore 20 gives about 157.1 N of push (131.9 N of pull) at 0.5 MPa - step up to bore 25 for about 245.4 N or down to bore 16 for about 100.5 N. MK vs MD decides rotation: the MK rod is prevented from turning, the MD standard cylinder allows it. Acting options are double acting (MK), single push (MSK), single pull (MTK), double rod (MKD) and adjustable stroke (MKJ with a 10/20/30 mm adjustable range). The 60 mm stroke reaches the 60 mm ceiling for bore-20 double acting cylinders, so treat longer strokes with caution - over-long strokes overhang the short covers. If you need position switches, keep the S for the magnet; the thread is PT with G available, and side-load figures come from the datasheet.
Applications
Pick-and-place actuation
Fit the MK20X60S to a compact pick head that lowers onto parts; the magnet lets a switch in the body slot confirm the down position before the gripper closes.
Small-parts clamping
Bolt the cylinder under or beside a fixture to clamp small parts; the non-rotating rod keeps the clamp pad facing square, and switch slots flag clamp and release states.
Jig positioning
Use the 60 mm stroke to push parts against a locating pin in a jig, with magnet-based switches confirming the part is fully seated before the next station.
FAQ
What does the S at the end of MK20X60S mean?
It means this cylinder is supplied with a magnet built into the piston, so position switches can be clamped into the slots around the body to detect end of stroke. The plain MK20X60 without the S has no magnet; the magnet is an option on this range, exactly as the SKU code shows.
Why is rod rotation a problem, and how does this cylinder prevent it?
If a rod turns, a clamp pad, blade or tool mounted on it can twist out of alignment. The MK family uses a no-rotating plate, bushing and fixed rod so the rod cannot turn, keeping the tool face square. Full details, including side-load capability and per-stroke dimensions, are in the datasheet we can provide.