
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X150-40S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 150mm 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 cylinders: this stainless round-body mini cylinder shortens the extend end by up to 40 mm via an external screw, giving a usable forward range of 110-150 mm while retract stays full. The adjustable air cushion at both ends soaks up high-speed shock so you set the position and control the impact.
Built with a stainless barrel and rod for mild washdown resistance, the 40 mm bore runs on a 1/4" port with a 16 mm rod. The -S suffix means a piston magnet is installed for CMSG, DMSG or EMSG sensors.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X150-40S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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. |
| ×150 | Stroke length in mm. |
| -40 | 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 a diverter arm out to a precise 120 mm stop on a high-speed line, using the cushion to absorb the impact of heavy cartons.
The adjustable stop plus needle cushion shines in fast set-position moves, but note the cylinder does not hold position on air loss—the piston drifts. Use an external rod lock or pilot check valve for held loads.
Mount using LB foot, FA flange or TC trunnion (the SDB pivot-block is not offered on this adjustable variant). Back covers include CA, U, R and CM. The stop screw sets the end position but is not a mid-stroke lock, and the cushion only decelerates near the end.
Quick checklist
It uses a 1/4" port. At 0.5 MPa it pushes 628.3 N and pulls 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical max force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 40 mm (retract is full), and a needle valve adjusts the air cushion at both ends to decelerate high-speed moves. The -S magnet enables CMSG/DMSG/EMSG sensors. It does not hold load on air loss; use an external rod lock for that.
Genuine AirTAC parts produced by AirTAC factory.
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