
The AirTAC MIJ Adjustable Cylinder MIJ40X225-10S 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.
Dialing in a heavy forward end position is effortless with the AirTAC MIJ40X225-10S, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw lets you shorten the extend stroke by up to 10 mm on site, giving a usable forward range of 215 to 225 mm without changing the part number. The retract stroke remains full length. Equipped with a 1/4" port and a Ø16 mm piston rod, it delivers substantial force for a mini unit, pushing 628.3 N and pulling 527.8 N at 0.5 MPa.
The stainless barrel and rod provide reliable mild corrosion and washdown resistance, while fixed TPU bumper pads absorb impact at the stroke ends. Because this is the -S variant, a built-in piston magnet enables position sensing with CMSG, DMSG, or EMSG switches. Note that Ø40 is a non-ISO-6432 size.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X225-10S |
|---|---|
| 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. |
| -10 | 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.
Position heavy sorting flaps on a packaging line, using the 10 mm extend adjustment to fine-tune the gate angle for varying carton widths without retooling.
Drive bearings into housings on an assembly line, relying on the 32 kg vertical lift capacity and tweaking the 225 mm extend end to perfect the insertion depth.
When sizing this 40 mm bore, compare it directly with the adjacent MIJ32 option. The 10 mm extend adjustment window is highly useful for taking up mechanical tolerances during machine commissioning or accommodating slight part variations without fabricating new hard stops. Just remember the external screw only trims the forward end position—it is not a mid-stroke lock or brake. If your application must hold a load vertically during air loss, add an external rod lock or pilot check valve, as the piston will drift. Mounting options include LB foot, FA flange, and TC trunnion brackets (SDB pivot blocks are not available on this adjustable variant).
Quick checklist
This 40 mm bore cylinder features a 1/4" air port and a male M12x1.25 rod thread. At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa, push increases to 879.6 N and pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The external stop screw shortens the extend stroke by up to 10 mm, letting you set a forward end position between 215 and 225 mm; the retract stroke remains full length. The -S suffix means it has a built-in piston magnet for use with CMSG, DMSG, or EMSG sensors. The stainless build resists mild corrosion, and fixed TPU bumpers decelerate the stroke ends.
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