
The AirTAC MIJ Adjustable Cylinder MIJ40X225-30S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 225mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in a precise forward end position on-site with the AirTAC MIJ40X225-30S, a round-body stainless mini cylinder featuring a 30 mm extend-stroke adjustment window. An external stop screw lets you trim the forward travel from 225 mm down to 195 mm without swapping parts, while retract remains full length. Built with a stainless-steel barrel and Ø16 mm piston rod, it handles mild corrosion and washdown environments.
The 1/4" port and M12x1.25 male rod thread accommodate robust air supply and mounting. Fixed TPU bumper pads decelerate the stroke end, and the included -S magnet supports CMSG, DMSG, and EMSG position sensors.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X225-30S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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.
Set exact extend stops up to 30 mm short of full stroke to push heavy cartons weighing up to 32 kg onto secondary packaging lines without readjusting hardware.
Fine-tune the forward end position on-site to accommodate different container heights in washdown-resistant stainless steel, ensuring precise fluid dispensing.
The 30 mm external stop screw is ideal for taking up mechanical tolerances during setup or covering multiple intermediate stop points with a single part number.
Remember that the stop screw sets the end position but is not a mid-stroke lock. This cylinder does not hold a load on air loss, as the piston will drift without air pressure; utilize an external rod lock or pilot-operated check valve for holding requirements. Mounting options include LB foot, FA flange, and TC trunnion styles, plus CA, U, R, or CM back covers, but SDB pivot blocks are not available on this adjustable variant.
Quick checklist
This Ø40 mm bore cylinder uses a 1/4" air port. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 30 mm on-site, yielding a usable forward travel of 195 to 225 mm; the retract stroke remains full length. The -S suffix indicates a built-in piston magnet for use with CMSG, DMSG, or EMSG sensors.
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