
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X450-50 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.
Dial in a precise forward stop on-site with the AirTAC MICJ40X450-50, a stainless-steel round-body mini cylinder featuring a 50 mm extend-stroke adjuster and a needle-set air cushion at both ends. The external screw trims the extend end position down from the 450 mm maximum without swapping hardware, while the dual cushions soak up high-speed shock. As a non-ISO 6432 Ø40 bore, it runs on a 1/4" port with a Ø16 rod and M12x1.25 male thread.
The stainless barrel and rod resist mild washdown corrosion. Note this SKU lacks a magnet, so it cannot host CMSG/DMSG/EMSG sensors; the stop screw and cushions decelerate the load but do not lock mid-stroke.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X450-50 |
|---|---|
| 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. |
| -50 | 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 pallets at a packing station; the adjustable air cushion absorbs the 450 mm high-speed stroke impact while the stop screw sets the exact resting position.
The 50 mm extend adjuster is ideal for fast set-position moves where you need to tune the forward impact without re-engineering the machine.
Mount using LB foot, FA flange or TC trunnion brackets, as the SDB pivot-block is not offered on this adjustable variant. Because a plain cylinder drifts on air loss, add an external rod lock or pilot check valve if the load must be held. For position sensing, select the -S magnet variant to enable CMSG/DMSG/EMSG switches.
Quick checklist
This double-acting Ø40 bore cylinder pushes 628.3 N and pulls 527.8 N at 0.5 MPa, pushes 879.6 N and pulls 738.9 N at 0.7 MPa, with a theoretical max of 128.1 kgf at 1.0 MPa. It uses a 1/4" air port and a Ø16 rod with an M12x1.25 male thread.
An external screw shortens the extend stroke by up to 50 mm on-site, letting you set the forward end position without changing the cylinder. Needle-set air cushions at both ends absorb high-speed shock but only decelerate near stroke end; they do not lock the load. This non-magnet SKU cannot take sensors, so choose the -S variant for CMSG/DMSG/EMSG switches.
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