Airtac MKJ Adjustable Cylinder MKJ20X60-30S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ20X60-30S is a genuine MK multi-mount cylinder (adjustable stroke), 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, adjustable stroke
- 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 MKJ Adjustable Cylinder MKJ20X60-30S
The MKJ is a compact square-body multi-mount cylinder with a no-rotating action: it fixes from six directions (front, back, left, right, top and bottom) and mounts side by side with adjacent units to save space. This 20 mm bore, double-acting model gives a theoretical push force of 157.1 N at 0.5 MPa over a 60 mm stroke, and the J suffix adds a 30 mm adjustable range on top. Stroke ends are cushioned by a bumper and magnetic-switch slots run around the body, ready for the magnet this SKU carries.
This is a genuine AirTAC part. In the MK family the rod is prevented from rotating, unlike the standard MD family where the rod is free to turn - so MKJ suits jobs where the load must stay aligned. The trailing S means this SKU includes the magnet. Operating range is 0.15-1.0 MPa at 30-500 mm/s with air filtered to 40 um. We confirm overall dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ20X60-30S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ20X60-30S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| 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
Choose the bore for thrust: at 20 mm, double acting gives 157.1 N push and 131.9 N pull at 0.5 MPa. Pick MK over MD when the rod must not rotate; MD allows rotation. Acting options are double, single push (MSK), single pull (MTK), double rod (MKD) and adjustable (MKJ); this MKJ20X60-30S adds a 30 mm adjustable range to a 60 mm stroke. Keep strokes within the bore's table - short covers set the practical limit, so avoid an over-long stroke. The magnet is included here via the S suffix, and the port thread is PT (default) or G. Side-load figures come from the datasheet; ask us for help sizing.
Applications
Sorter divert stopper
In a warehouse sorter, the cylinder raises a stopper to hold parcels between divert cycles. The no-rotating rod keeps the stopper blade square, and the magnet signals extend and retract positions to the PLC.
Height-adjustable ejector
On an ejection station, the 30 mm adjustable range sets the eject stroke to the product height without swapping cylinders, and six-direction fixing lets the body bolt into the cramped tooling plate.
Test-rig jig actuation
In a bench-top test jig, side-by-side mounting puts clamp and probe cylinders next to each other on a narrow plate, while the no-rotating rod keeps probes aligned with the test points.
FAQ
How far can the stroke be adjusted on the MKJ20X60-30S?
The base stroke is 60 mm and the J suffix adds a 30 mm adjustable range on top, set by the adjuster at installation. Adjustable ranges come in 10, 20 or 30 mm options; this SKU carries the 30 mm range.
Where can I find dimensions and side-load limits for this cylinder?
Overall dimensions vary with the stroke, and allowable side-load is a datasheet value, so neither is quoted here. Ask us and we will confirm both from the AirTAC datasheet for the MKJ20X60-30S before you finalise your layout.