
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X175-30S 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.
Dial in the forward stop on-site without swapping actuators using the AirTAC MICJ40X175-30S. This round-body stainless-steel mini cylinder features an external screw that shortens the extend end position by up to 30 mm, giving a usable forward range of 145-175 mm. The retract stroke remains full length. A needle-set variable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact simultaneously.
The built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors, and the 1/4" port handles the air volume needed for this larger bore.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X175-30S |
|---|---|
| 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. |
| -30 | 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.
Act as an adjustable end-stop for pallets entering a wrapper, using the needle air cushion to absorb the impact of fast-moving loads.
Secure stainless parts in a food-grade washdown environment, relying on the corrosion-resistant barrel and 32 kg vertical lift capacity.
When sizing this 40 mm bore actuator, compare it against the adjacent bores. Stepping down to the 32 mm variant drops the 0.5 MPa push force to 402.2 N, while the 40 mm bore used here provides 628.3 N. There is no larger standard MICJ bore available, making this the top choice for maximum thrust in the series. The 30 mm extend stop adjustment is ideal for fast set-position moves where you need to tune the forward endpoint on the fly.
Mounting options include LB foot, FA flange, and TC trunnion brackets, but the SDB pivot-block is not available on this adjustable-stroke variant. Remember that the stop screw and air cushion only decelerate the piston near the stroke end; they do not function as a mid-stroke lock. If your application must hold a load on air loss, install an external rod lock or pilot-operated check valve.
Quick checklist
At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It uses a 1/4" air port.
An external screw shortens the extend stroke by up to 30 mm on-site, giving a usable forward range of 145-175 mm, while the retract stroke remains full. A needle-set variable air cushion at both ends decelerates the piston near the ends to absorb high-speed shock. The -S suffix means it includes a magnet for CMSG, DMSG, or EMSG sensors.
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