
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ32X300-20S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø32mm bore and 300mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in a precise forward stop on-site with the AirTAC MICJ32X300-20S, a round-body stainless-steel mini cylinder that shortens the extend end position by up to 20 mm via an external screw. The usable extend range becomes 280-300 mm, while retract remains a full 300 mm stroke. A built-in piston magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing.
Driven by a 1/8" port and a Ø12 mm rod with an M10x1.25 male thread, this double-acting actuator delivers 402.2 N of push force at 0.5 MPa. Needle-set adjustable air cushions at both ends soak up high-speed shock to protect your tooling. The stainless barrel and rod resist mild corrosion and washdown environments. For vertical moves, it safely lifts about 20.5 kg using a 2:1 margin, yielding a safe working load near 241 N.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ32X300-20S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 Ø32 bore is a larger, non-ISO-6432 size.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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). |
|---|---|
| 32 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -20 | 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.
Pushes packages at 800 mm/s with the dual air cushions absorbing the impact, while the 20 mm extend stop screw dials in the exact contact point without moving the bracket.
Lifts roughly 20.5 kg safely using the 402.2 N push force, allowing precise height adjustment on the extend end to accommodate different carton sizes.
Delivers up to 82 kgf theoretical force for light pressing tasks, using the external stop nut to set the exact 280-300 mm forward position and prevent over-travel.
When sizing this 32 mm bore, moving down to the 25 mm variant drops the 0.5 MPa push force to 245.3 N, while stepping up to the 40 mm bore increases it to 628.3 N. Choose this model when you need substantial push power combined with on-site extend tuning and high-speed cushioning. The external screw sets the forward end position but is not a mid-stroke lock; the air cushions only decelerate near the stroke ends.
This cylinder does not hold a load on air loss, so add an external rod lock or pilot-operated check valve if you need to prevent drift. Mount using LB foot, FA flange or TC trunnion brackets (the SDB pivot-block is not available on this adjustable variant). The -S magnet enables reed or electronic sensors for closed-loop confirmation.
Quick checklist
This double-acting cylinder uses a 1/8" port and generates 402.2 N push and 345.6 N pull at 0.5 MPa. At 0.7 MPa it provides 563 N push and 483.8 N pull. The theoretical maximum force is 82 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 20 mm on-site, giving a usable forward range of 280-300 mm. Needle-set adjustable air cushions at both ends decelerate the piston at high speeds to reduce shock. The -S suffix means it has a built-in magnet for CMSG, DMSG and EMSG sensors.
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Covers non-human-caused product damage.
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