
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X450-75 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Shave up to 75 mm off the forward end position on site with the AirTAC MICJ40X450-75, a stainless round-body mini cylinder built for double-acting operation. An external stop screw lets you dial in the extend stroke from 375 to 450 mm without swapping hardware, while a needle-set adjustable air cushion at both ends soaks up high-speed impact.
Because this is a non-magnet SKU, it cannot host CMSG, DMSG, or EMSG sensors. The stainless steel barrel and rod shrug off mild washdown corrosion.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X450-75 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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. |
| ×450 | Stroke length in mm. |
| -75 | 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.
Arrest heavy pallets moving at 600 mm/s by tuning the needle cushion to soften the end stop, trimming the extend position up to 75 mm to match pallet width.
Hoist a 30 kg material gate using the 0.5 MPa push force, adjusting the extend end precisely to clear overhead obstructions without over-travel.
This model shines when you need rapid set-position moves—the 75 mm extend adjuster sets the exact forward stop, and the dual adjustable air cushions decelerate the payload smoothly at speeds up to 800 mm/s.
Remember that the stop screw and cushions only manage end-of-stroke impact; they do not lock the rod mid-stroke. If gravity or air loss causes drift, install an external rod lock or pilot check valve. Mount via LB foot, FA flange, or TC trunnion (SDB is unavailable here), and note that adding a magnet requires the -S version for sensing.
Quick checklist
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod.
An external screw shortens the extend stroke by up to 75 mm on site, giving a usable 375-450 mm forward travel while retract remains full. Needle valves adjust the air cushion at both ends to decelerate high-speed loads. This SKU lacks a magnet, so it cannot take sensors; choose the -S variant for CMSG/DMSG/EMSG switches.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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