
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X80-100 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in a precise forward stop without swapping hardware using the AirTAC MICJ40X80-100 round-body mini cylinder. An external stop screw shortens the extend end by up to 100 mm on-site, yielding a usable 0-80 mm extend stroke, while a needle-set variable air cushion at both ends soaks up high-speed shock.
This Ø40 bore features a 1/4" port, a 16 mm piston rod, and an M12x1.25 male thread. Note this non-ISO-6432 SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors, and the stop screw is an end-position setter, not a mid-stroke lock.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X80-100 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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. |
| ×80 | Stroke length in mm. |
| -100 | 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.
Reroute heavy boxes at high cycle rates; the dual adjustable air cushions absorb the end-of-stroke shock, preventing premature wear on the diverter arm.
Raise and lower a 32 kg access panel smoothly, relying on the tuned extend position to hit the exact closed height every time without hard impacts.
The adjustable extend stop plus dual air cushions shine in fast set-position moves where you must tune the forward impact. For suspended loads, remember the piston drifts on air loss; the cushion only decelerates near the end, so add an external rod lock or pilot check valve. Mount via LB, FA, or TC (SDB is unavailable here), and choose the -S variant if you need sensing.
Quick checklist
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 100 mm on-site, while needle valves tune the variable air cushions at both ends to decelerate high-speed impacts. It does not hold position on air loss; use an external rod lock for that. This non-S SKU cannot take sensors.
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Covers non-human-caused product damage.
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