
The AirTAC MIJ Adjustable Cylinder MIJ40X450-10S 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 your forward end position on the fly with the AirTAC MIJ40X450-10S, a round-body stainless steel mini cylinder built for heavy-duty pneumatics. An external stop screw lets you trim the extend stroke by up to 10 mm on site, giving you a usable forward range of 440-450 mm without swapping parts. Retract remains a full 450 mm. The built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors for precise end-of-stroke detection.
The stainless barrel and rod shrug off mild corrosion and washdown environments, while fixed TPU bumper pads decelerate the piston at the stroke ends. Note that Ø40 is a non-ISO-6432 size.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X450-10S |
|---|---|
| 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. |
| -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.
Secure large castings during machining.
Route heavy pallets on a packaging line. The stainless build handles washdown, and the adjustable forward stop lets you fine-tune the gate extension without reprogramming the PLC.
Push heavy cartons to a secondary lane. The 32 kg vertical lift capacity handles dense goods, and the external stop screw lets operators change the push distance for different box sizes on the fly.
When sizing this actuator, consider the force gap between bores. There is no larger standard bore in the MIJ series, making this the top choice for maximum thrust. The 10 mm external adjuster is perfect for taking up mechanical tolerances or staggering part feeds during setup. Just remember the stop screw sets the end position; it is not a mid-stroke lock. If your application must hold a load on air loss, add an external rod lock or pilot check valve, as the piston will drift.
Mounting options include LB foot brackets, FA flanges, and TC trunnions, but the SDB pivot block is not available on this adjustable-stroke variant. Back cover configurations include CA, U, R, and CM styles. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG switches for position sensing.
Quick checklist
This 40 mm bore cylinder features a 1/4" air port and a 16 mm rod. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 10 mm, allowing you to set the forward end position between 440 and 450 mm; the retract stroke remains fixed at 450 mm. The -S suffix means it has a built-in piston magnet for use with CMSG, DMSG, or EMSG sensors. It uses fixed TPU bumper pads, not an adjustable air cushion.
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