
The AirTAC MIJ Adjustable Cylinder MIJ25X30-20S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 30mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface fits standard ISO 6432 mini-cylinder mounting interfaces.
Trimming the forward end by up to 20 mm via an external stop screw, this double-acting round-body mini cylinder lets you dial in the exact extend position from 10 to 30 mm without swapping parts. The stainless-steel barrel and Ø10 mm rod shrug off mild washdown environments, while the built-in magnet (-S) directly supports CMSG, DMSG, and EMSG position switches. Retract travel remains fixed at the full 30 mm.
It conforms to the ISO 6432 mounting interface for standard mini brackets, uses a 1/8" port, and relies on fixed TPU bumper pads to decelerate the stroke end.
| Model | Airtac MIJ Adjustable Cylinder MIJ25X30-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Set a precise extend position to deflect packages on a line, relying on the stainless build for mildly corrosive industrial environments.
The 20 mm adjustment window is ideal for taking up mechanical tolerances or matching multiple part heights on the same fixture. You can select LB foot, FA flange, or TC trunnion mounts, but note the SDB pivot block is not offered on this adjustable variant.
Because the stop screw only sets the forward end position and the bumpers merely soften impact, the piston will drift if air pressure drops. To hold a load securely during air loss, add an external rod lock or a pilot-operated check valve rather than relying on the adjustment mechanism.
Quick checklist
The theoretical maximum force is 50 kgf at 1.0 MPa, and the air port is 1/8".
An external stop screw shortens the extend stroke by up to 20 mm on-site, while the retract stroke remains fixed at the full 30 mm. The included -S magnet enables CMSG, DMSG, and EMSG sensors for position detection.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.