
The AirTAC MIJ Adjustable Cylinder MIJ25X50-30S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 50mm 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.
Dial in your forward end position on-site with the AirTAC MIJ25X50-30S, a round-body stainless steel mini cylinder featuring a 30 mm adjustable extend stroke. An external stop screw lets you shorten the forward travel from its 50 mm nominal length down to 20 mm, absorbing setup tolerances without changing the cylinder body. The retract stroke remains full length. Built with a stainless barrel and piston rod, it withstands mild corrosion and washdown environments.
It uses the ISO 6432 mounting interface for standard mini brackets. Because this SKU includes the -S magnet, it supports CMSG, DMSG, and EMSG sensors. Air connects via a 1/8" port, and fixed TPU bumper pads decelerate the stroke ends.
| Model | Airtac MIJ Adjustable Cylinder MIJ25X50-30S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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. |
| ×50 | Stroke length in mm. |
| -30 | 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.
Fine-tune the extend stroke up to 30 mm to deflect packages of varying widths on a conveyor without swapping out the actuator.
Absorb part tolerances during a clamping sequence by setting the exact extend end position, relying on the stainless build for coolant washdowns.
When sizing, check both directions: dropping down to the MIJ20 bore drops your 0.5 MPa push force to 157 N, while stepping up to the MIJ32 raises it to 402 N. This 25 mm bore hits a solid middle ground at 245.3 N. The 30 mm external stop screw is ideal for changeover jobs where you need one part number to cover several forward stops, but remember it only trims the extend end. The stop screw is not a mid-stroke lock; the piston will drift on air loss, so add an external rod lock or pilot check valve if you need to hold a load. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is unavailable here), and use CMSG/DMSG/EMSG switches since the -S magnet is present.
Quick checklist
The theoretical max force is 50 kgf at 1.0 MPa. The air port is 1/8".
An external stop screw shortens the extend stroke by up to 30 mm on-site, giving a usable forward range of 20-50 mm; the retract stroke remains full. The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG sensors. Fixed TPU bumpers decelerate the ends, but it is not a mid-stroke lock.
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