Airtac MKJ Adjustable Cylinder MKJ20X50-10
The AirTAC Airtac MKJ Adjustable Cylinder MKJ20X50-10 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
- MagnetWithout magnet
- 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 MKJ20X50-10
The MKJ20X50-10 is a genuine AirTAC multi-mount cylinder: a compact square-body air cylinder that can be fixed from 6 directions (front, back, left, right, top and bottom) and mounted side by side to save space. As an adjustable-stroke MK variant it is double acting, with a no-rotating plate, brass bushing and fixed rod that stop the piston rod from turning. The 20 mm bore delivers about 157.1 N theoretical push at 0.5 MPa, and the 50 mm stroke carries an extra 10 mm adjustable range, while cushioning is handled by a bumper.
This is a genuine AirTAC part. The MK family is the no-rotating version of the multi-mount range, unlike the standard MD family where rod rotation is allowed. This SKU is listed without a magnet, exactly as the code shows. Overall dimensions and sizing for your layout can be confirmed from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ20X50-10 Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ20X50-10 |
|---|---|
| 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 | Without magnet |
| 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 20 mm bore when you need roughly 157.1 N of theoretical push at 0.5 MPa; larger bores give more thrust, smaller ones less. Pick MKJ over MDJ if the rod or tooling must not rotate. This unit is double acting with a 50 mm base stroke plus a 10 mm adjustable range, so the effective stroke can be trimmed within that window. Keep strokes modest, because the short cover design limits how long a stroke the body can accept. No magnet is fitted on this code; order an S-suffix code if magnetic switch detection is needed. Thread is PT by default; a G-thread version is available. Side-load ratings and dimensions should be confirmed from the datasheet.
Applications
Small-parts clamping
The fixed, non-rotating rod holds clamp pads square on small parts in fixtures, while the 6-direction fixing lets the cylinder bolt straight onto the clamp face it suits best.
Jig positioning
In drilling and assembly jigs, the adjustable 10 mm range trims the stop position per part, and the square body mounts side by side for compact multi-station jigs.
Gate and stopper actuation
A non-rotating rod keeps gates and stopper plates aligned on conveyor lines, with the compact body fixed from the most convenient of the 6 available faces.
FAQ
What does the -10 in MKJ20X50-10 mean?
MKJ is the adjustable-stroke, no-rotating multi-mount cylinder. 20 is the bore in mm, 50 is the base stroke in mm, and the -10 adds a 10 mm adjustable range on top of the 50 mm stroke. The code has no trailing S, so this unit is supplied without a magnet, and the thread is PT by default.
How is this cylinder mounted and what should I check before ordering?
The square body can be fixed from 6 directions: front, back, left, right, top and bottom, and units can sit side by side to save space. Because the covers are short, keep the stroke within what the body design accepts rather than specifying an over-long stroke. Overall dimensions and allowable side-load should be confirmed from the datasheet; contact us and we will provide them.