
The AirTAC MIJ Adjustable Cylinder MIJ40X225-100S 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 MIJ40X225-100S, a round-body stainless steel mini cylinder featuring a 100 mm extend-stroke adjustment window. An external stop screw lets you shorten the forward stroke anywhere from the 225 mm maximum down to 125 mm, absorbing setup tolerances without swapping parts. Retract remains at the full stroke length.
The stainless-steel barrel and Ø16 mm piston rod supply mild corrosion resistance for washdown or humid settings, while fixed TPU bumper pads decelerate the stroke ends. Because this is a -S variant, a built-in piston magnet supports CMSG, DMSG, or EMSG position switches. It uses a 1/4" port and an M12x1.25 male rod thread. Note that Ø40 falls outside the ISO 6432 mounting standard, operating instead as a robust large-capacity mini cylinder. The stop screw sets the endpoint only; it is not a mid-stroke lock.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X225-100S |
|---|---|
| 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. |
| -100 | 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.
Use the 100 mm adjuster to tune the push distance on a sorting line, leveraging the 628.3 N extend force to shift heavy cartons without repositioning the cylinder mount.
Accommodate different box sizes on the fly by dialing the forward stop down from 225 mm, using the fixed TPU bumpers to cushion the stroke end for repetitive packaging cycles.
Rely on the stainless barrel and rod to withstand humid food-grade environments while pushing 32 kg assemblies into a processing station at a precisely set endpoint.
When sizing this unit, consider both directions: stepping down to the Ø32 bore drops the 0.5 MPa push force to 402.2 N, while no larger MIJ round-body mini exists above Ø40. The integrated 100 mm adjuster is invaluable for changeover jobs, letting one part number cover several intermediate stops.
Mounting options include LB foot, FA flange, and TC trunnion styles, but the SDB pivot block is not offered on this adjustable variant. Remember that a standard cylinder drifts on air loss—the bumper only softens the end stop, so add an external rod lock or pilot check valve if you need to hold a suspended load.
Quick checklist
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 100 mm on-site, setting the forward end position without affecting the full retract stroke. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG sensors; a non-S SKU cannot take a sensor.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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