
The AirTAC MIJ Adjustable Cylinder MIJ40X450-75S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 450mm 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 MIJ40X450-75S, a round-body stainless mini cylinder featuring a 75mm extend-stroke adjustment window. An external stop screw lets you shorten the forward travel anywhere from 375mm to 450mm, allowing one part number to cover multiple stop distances without swapping hardware. Retract travel remains full length.
The built-in magnet (-S) supports CMSG, DMSG, and EMSG position switches.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X450-75S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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. |
| ×450 | Stroke length in mm. |
| -75 | 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 specific extend stops between 375mm and 450mm to push varying carton sizes onto secondary packaging lines without changing cylinders.
Fine-tune the extend end position during machine changeovers, absorbing cumulative mechanical tolerances across a 450mm parts feeding cycle.
The 75mm external adjuster is ideal for taking up mechanical tolerances during setup or matching multiple staged feed distances. Remember the stop screw only trims the extend end; it is not a mid-stroke lock.
Because a standard pneumatic cylinder drifts on air loss, install an external rod lock or pilot-operated check valve if the load must be held. Mount using LB foot, FA flange, or TC trunnion brackets (SDB pivot-block is not available on this adjustable variant). The -S magnet enables CMSG/DMSG/EMSG sensors for exact end-position confirmation.
Quick checklist
The theoretical maximum force is 128.1kgf at 1.0MPa.
An external stop screw shortens the extend stroke by up to 75mm (usable forward travel 375-450mm); retract remains full. The -S suffix means a piston magnet is built-in for CMSG/DMSG/EMSG sensors. The stainless build resists mild washdown environments.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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