Airtac MKJ Adjustable Cylinder MKJ6X30-20S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ6X30-20S is a genuine MK multi-mount cylinder (adjustable stroke), 6 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 14.1 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, adjustable stroke
- SeriesMK (no-rotating)
- Bore6 mm
- Push thrust @0.5 MPa14.1 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 MKJ Adjustable Cylinder MKJ6X30-20S
The AirTAC MKJ6X30-20S is an adjustable-stroke, no-rotating multi-mount cylinder with a compact square body that can be fixed from 6 directions: front, back, left, right, top and bottom. Bodies mount side by side to save space, and magnetic-switch slots surround the body for guide-precision switching. This 6 mm bore double-acting unit delivers about 14.1 N of theoretical push thrust at 0.5 MPa, covers 30 mm of main stroke plus a 20 mm adjustable range, and is cushioned by a bumper.
This is a genuine AirTAC part. The MK family differs from the standard MD family by adding a no-rotating plate, bushing and fixed rod that stop the piston rod from turning, so attached tooling keeps its orientation. This SKU carries the S suffix, so it is built with a magnet for switch detection; thread is PT. We confirm dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ6X30-20S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ6X30-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 6 mm |
| Push thrust @0.5 MPa | 14.1 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 | 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
Choose the 6 mm bore when your clamp or positioner needs roughly 14.1 N of push at 0.5 MPa; for more force, step up the bore. The MKJ prefix gives double-acting operation with a 20 mm adjustable range on top of the 30 mm stroke, so you can fine-tune the effective stroke. MK prevents rod rotation; MD allows it. Stroke for a 6 mm bore double-acting unit runs up to 35 mm, and the short cover cautions against over-long strokes. This SKU includes the magnet (S) and PT thread; a G thread version is available. Side-load ratings come from the datasheet, so confirm with us.
Applications
Indexing small parts on a fixture
The 20 mm adjustable range lets a line tech fine-tune the push distance when indexing 6 mm-scale parts between stations, and the no-rotating rod keeps the push blade square to the part.
Small-parts clamping
Side-by-side mounting lets several 6 mm bore cylinders clamp delicate components in a tight fixture footprint, with about 14.1 N push at 0.5 MPa per unit.
Stopper on a miniature conveyor
Fixed from the top or side of a small conveyor, the no-rotating rod raises a stopper flag that stays aligned, and the bumper cushions each cycle.
FAQ
What does the -20 in MKJ6X30-20S mean?
MKJ is AirTAC's adjustable-stroke, no-rotating multi-mount cylinder. The 30 after the X is the main stroke in mm, and -20 is the 20 mm adjustable range added on top, so the effective stroke can be trimmed within that range. The trailing S means this unit is built with a magnet for position-switch detection.
How many ways can I mount this cylinder, and how far can the stroke run?
The square body can be fixed from 6 directions (front, back, left, right, top, bottom) and units sit side by side to save space. For a 6 mm bore double-acting unit the stroke tops out at 35 mm, and the short cover means you should avoid over-long strokes; side-load limits and exact dimensions come from the datasheet.