Airtac MKJ Adjustable Cylinder MKJ32X25-30S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ32X25-30S is a genuine MK multi-mount cylinder (adjustable stroke), 32 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 402.1 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)
- Bore32 mm
- Push thrust @0.5 MPa402.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port size1/8"
- 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 MKJ32X25-30S
The MKJ32X25-30S is an AirTAC adjustable-stroke multi-mount cylinder: a compact square body that can be bolted down from six directions and installed side by side with matching cylinders to shrink the machine footprint. Double acting with a 32 mm bore and a 25 mm stroke, it carries a 30 mm adjustable range so the stroke can be tuned after installation. At 0.5 MPa the bore gives a theoretical push thrust of 402.1 N, and cushioning is a bumper.
This is a genuine AirTAC MK-series part: a no-rotating plate, bushing and fixed rod prevent the piston rod from turning, so end tooling keeps its orientation. The trailing S means a magnet is fitted for magnetic switch detection, with switch slots around the body. We confirm exact dimensions, rod detail and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ32X25-30S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ32X25-30S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 32 mm |
| Push thrust @0.5 MPa | 402.1 N |
| Port size | 1/8" (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
Pick the 32 mm bore for maximum thrust in this series: roughly 402.1 N pushing and 345.6 N pulling at 0.5 MPa, double acting. MK differs from the standard MD by preventing rod rotation; use MD where rotation is harmless. The J build adds a 10, 20 or 30 mm adjustable range over the 25 mm stroke, and bore 32 double-acting cylinders reach up to 60 mm in the table, so treat anything near the maximum with care given the short covers. The S suffix here means a magnet is included; without it, magnetic switches cannot detect position. The thread is PT, and G is offered as an alternative. Confirm side-load figures with us from the datasheet.
Applications
Label-head press station
Mounted top-down on a packaging line, the cylinder presses labels or stamps codes onto packs, with the no-rotating rod keeping the pad level and the magnet enabling end-of-stroke sensing.
Tote stop and release
Fixed to the side rail of a tote conveyor, pairs of cylinders stop and release totes at pick stations, and the adjustable range absorbs rail height differences.
Vertical part seating
In a small press fixture, the rod pushes a bushing or bearing square into its bore; the fixed rod and plate stop rotation so the part is not spun during seating.
FAQ
Why choose MKJ over MDJ for this bore and stroke?
Both are adjustable-stroke, double-acting 32 mm cylinders, but MKJ is the no-rotating build: a plate, bushing and fixed rod stop the rod from turning, which matters for tooling that must stay square. MDJ is the standard version where a little rotation is acceptable.
Where can I find exact dimensions and side-load limits?
Overall dimensions change with stroke and the adjustable range, and allowable side load is a datasheet value, so we route both to the official AirTAC datasheet rather than estimating. The short covers also mean you should avoid running the stroke close to the bore's table maximum. Ask us and we will confirm the figures for your build.