
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X30-10S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 30mm 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 MICJ40X30-10S, a round-body stainless mini cylinder built for heavy miniature tasks. An external stop screw shortens the extend end by up to 10 mm on site, giving a usable forward range of 20-30 mm, while a needle-set adjustable air cushion at both ends soaks up high-speed shock. The stainless steel barrel and Ø16 mm rod shrug off mild corrosion and washdown environments.
The -S suffix denotes a built-in piston magnet, enabling direct mounting of CMSG, DMSG, or EMSG sensors for position feedback.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X30-10S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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. |
| ×30 | Stroke length in mm. |
| -10 | 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.
Snaps heavy product streams across a belt at up to 800 mm/s, relying on the dual adjustable air cushions to absorb the shock of sudden stops.
Folds thick cardboard flaps with a 32 kg vertical lift margin, dialing in a 25 mm extend stroke to avoid crushing the carton edges.
This model is ideal for fast, repetitive moves where the 10 mm extend trims the final position and the dual air cushions prevent end-of-stroke banging. Remember that the stop screw sets the end position but does not lock the piston mid-stroke.
Because a standard cylinder does not hold a load on air loss, the piston will drift if pressure drops, and the cushion only decelerates near the end of travel rather than acting as a brake. For suspended loads, install an external rod lock or pilot check valve. Mount this unit via LB foot, FA flange, or TC trunnion (the SDB pivot block is not offered on this adjustable variant), and rely on the internal magnet for electronic or reed switching.
Quick checklist
An external screw shortens the extend stroke by up to 10 mm, while needle valves tune the air cushions at both ends to decelerate high-speed impacts. The cylinder does not hold position on air loss and the cushion is not a brake; the -S suffix provides a magnet for CMSG/DMSG/EMSG sensors.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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