
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X150-30 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 a precise forward stop on site with the AirTAC MICJ40X150-30, a 40mm bore round-body mini cylinder featuring a 30mm adjustable extend stroke. An external screw trims the forward end position down from the 150mm nominal maximum, letting you set exact reach without swapping hardware. Retract remains full length. Built with a stainless-steel barrel and rod, this riveted construction resists mild corrosion and washdown environments.
The integrated adjustable air cushion at both ends soaks up high-speed shock, operating smoothly between 30 and 800 mm/s. This SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors. The cushion only decelerates near the stroke end; it is not a mid-stroke lock or brake.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X150-30 |
|---|---|
| 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. |
| -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.
Push 32 kg machined metal parts out of a CNC enclosure, using the 30mm extend adjuster to dial the exact ejection reach without retooling.
Divert heavy cartons on a packaging line at speed, relying on the dual adjustable air cushions to absorb shock and prevent end-cap damage.
Index loaded pallets against a hard stop, setting the forward position precisely while the stainless build handles dusty warehouse environments.
The 30mm extend adjuster and dual air cushions shine in fast set-position moves where you need to tune both the physical stop and the impact absorption.
Mount using LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers. The SDB pivot block is not available on this adjustable variant. Because a standard cylinder drifts on air loss, add an external rod lock or pilot check valve if you need to hold a load securely.
Quick checklist
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30mm on site, giving a usable forward range of 120-150mm, while retract stays full. The adjustable air cushions at both ends use a needle valve to decelerate the piston near the ends, absorbing high-speed shock. Note this SKU has no magnet for sensors, and the cushion is for deceleration only, not a mid-stroke lock.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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