
The AirTAC MIJ Adjustable Cylinder MIJ40X150-50S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 150mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in your forward end position on-site with the AirTAC MIJ40X150-50S, a round-body stainless mini cylinder featuring a 50 mm extend adjustment window. An external stop screw lets you shorten the forward stroke from its 150 mm nominal length down to 100 mm, absorbing setup tolerances without changing the part number. The retract stroke remains full length. Built with a stainless-steel barrel and Ø16 mm piston rod, it resists mild corrosion and washdown environments.
This double-acting actuator delivers substantial force, pushing with 628.3 N and pulling with 527.8 N at 0.5 MPa. It uses a 1/4" port and fixed TPU bumper pads to decelerate the stroke end. Because this SKU includes the -S magnet, it is ready for CMSG, DMSG, or EMSG position sensing.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X150-50S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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. |
| ×150 | Stroke length in mm. |
| -50 | 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 precise extend stops up to 50 mm short of full stroke to push varying box sizes onto downstream lanes without retooling the entire station.
Eject machined components at programmed intermediate positions, using the stop nut to absorb setup tolerances and protect delicate tooling.
When sizing this 40 mm bore, compare it against the adjacent MIJ32 option if you need less force. As the largest bore in the series, there is no larger standard MIJ size to upscale into. The 50 mm external stop screw is ideal for changeover jobs where you need one cylinder to cover several staged feed distances.
Remember that the stop screw only trims the extend end position; it is not a mid-stroke lock or brake. If air pressure drops, the piston will drift, so add an external rod lock or pilot check valve for held loads. For mounting, select LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers. Note that the SDB pivot block is not available on this adjustable variant. The included -S magnet enables your chosen CMSG, DMSG, or EMSG sensors.
Quick checklist
This 40 mm bore cylinder uses a 1/4" air port. At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa the 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 50 mm on-site, giving a usable forward range of 100-150 mm, while retract remains full. The -S suffix means a piston magnet is built-in for CMSG, DMSG, or EMSG sensors. The stainless build resists mild corrosion.
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