
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ40X50-10S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 50mm 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 hardware using the AirTAC MICJ40X50-10S. This round-body stainless-steel mini cylinder shortens the extend end position by up to 10 mm via an external screw, while a needle-set adjustable air cushion at both ends soaks up high-speed shock. The built-in magnet (-S) directly supports CMSG, DMSG, and EMSG position switches.
The Ø40 bore uses a 1/4" port and a 16 mm piston rod to generate 628.3 N of push force at 0.5 MPa. Because it is a double-acting riveted stainless build, it resists mild corrosion and washdown. It yields a safe working load of roughly 377 N, moving about 32 kg vertically with a 2:1 safety margin.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X50-10S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting, 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Securely clamps 30 kg metal castings, using the 10 mm extend adjustment to dial in the exact grip depth while the air cushion prevents end-of-stroke slamming.
Pushes heavy cartons at high speed on a packaging line, relying on the 628.3 N push force and needle-set cushions to absorb the repetitive impact energy.
Hoists components weighing around 32 kg in a 2:1 margin setup, taking advantage of the stainless construction for mildly humid storage environments.
For lighter duty, the Ø32 bore delivers 402.2 N push at 0.5 MPa, whereas this Ø40 provides 628.3 N; no larger standard MICJ bore exists. The 10 mm extend adjuster plus dual air cushions excel in fast set-position moves where you must tune both the landing spot and the impact deceleration.
Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot-block is not offered on this adjustable variant. Note that the stop screw sets the end position but is not a mid-stroke lock; the cylinder drifts on air loss, so add an external rod lock or pilot check valve to hold a suspended load.
Quick checklist
It features a 1/4" port and delivers 628.3 N push / 527.8 N pull at 0.5 MPa, and 879.6 N push / 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 10 mm on site, while the needle-set air cushion at both ends decelerates the piston near stroke end to absorb shock. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG sensors.
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