
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X175-50S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 175mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Trim the forward stop by up to 50 mm on site without swapping hardware using this stainless round-body mini cylinder. The MICJ40X175-50S is a double-acting actuator with a 175 mm nominal stroke, yielding a usable extend range of 125-175 mm while retract remains full. A needle-set variable air cushion at both ends soaks up high-speed shock to protect your tooling.
The stainless steel barrel and rod resist mild corrosion and washdown environments. 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 MICJ Adjustable Mini Cylinder MICJ40X175-50S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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).
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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.
Dial in a precise 140 mm press stroke from the 175 mm nominal travel to seat bearings, using the dual air cushions to absorb the 879.6 N high-speed impact.
Arrest heavy pallets on a washdown line; the stainless construction handles splashes while the 50 mm extend trim lets you reposition the stop block quickly.
This adjustable-stop variant shines in fast set-position moves where you must dial in the exact forward endpoint and rely on the dual air cushions to decelerate the load smoothly.
Remember that the external stop screw sets the extend end position but acts purely as a mechanical stop, not a mid-stroke lock. A plain cylinder does not hold its load on air loss, and the piston will drift if valve pressure is centered. For suspended or gravity-loaded applications, install an external rod lock or a pilot-operated check valve. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is not available on this adjustable-stroke build).
Quick checklist
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 50 mm (usable range 125-175 mm), while needle valves tune the variable air cushions at both ends to decelerate the piston near stroke ends. The cushion only decelerates and is not a brake; the cylinder will drift on air loss, so use an external rod lock for load holding. The built-in -S magnet supports CMSG, DMSG, and EMSG sensors.
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