
The AirTAC MIJ Adjustable Cylinder MIJ40X100-50S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 100mm 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 MIJ40X100-50S, a round-body stainless steel mini cylinder featuring a 50 mm extend-stroke adjustment window. An external stop screw lets you shorten the forward stroke anywhere from the 100 mm nominal maximum down to 50 mm, absorbing setup tolerances and covering multiple stop points with a single part number. Retract remains at the full stroke length.
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 fully ready for CMSG, DMSG, or EMSG position sensing. Note that Ø40 is a non-ISO-6432 size.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X100-50S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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. |
| ×100 | 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.
Sort heavy cartons on a packaging line by setting the forward stop position to match specific lane angles, utilizing the 32 kg vertical lift capacity for reliable plow positioning.
Adjust the extend end position on the fly to handle different pallet heights in an automated storage system, relying on the stainless construction to endure dusty or humid warehouse environments.
The 50 mm external stop screw is ideal for fine-tuning part ejection or staged feeds without machining new hard stops.
Mounting options include LB foot, FA flange, and TC trunnion, along with CA, U, R, and CM back covers (the SDB pivot block is not offered on this adjustable variant). Remember that the stop screw sets the end position but acts purely as a mechanical limit—it is not a mid-stroke lock. The piston will drift on air loss, 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.
The external stop screw shortens the extend stroke by up to 50 mm (usable forward range 50-100 mm), while retract remains full. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG sensors. Fixed TPU bumpers decelerate the stroke ends.
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