
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X200-30 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 200mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
With a 157 N push at 0.5 MPa, this 20 mm round-body stainless mini cylinder is built for precise, high-speed positioning. The external stop screw trims the extend end by up to 30 mm on-site, letting you dial in a 170-200 mm forward stop without changing the cylinder. A needle-set air cushion at both ends absorbs shock, so fast cycling stays controlled.
The stainless barrel and rod resist mild corrosion and washdown, and the ISO 6432 mounting interface fits standard mini brackets. The 1/8" port suits compact air circuits. For a safe working load, plan around 94 N (about 60% of the 157 N push), or roughly 8 kg vertical lift with a 2:1 safety margin.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X200-30 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 200 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×200 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Set a 170-200 mm extend stop for clamping fixtures on a machining line. The 157 N push at 0.5 MPa drives the clamp, while the adjustable screw fine-tunes the grip point.
Push parts off a conveyor at up to 800 mm/s. The air cushion at both ends prevents the 8 mm rod from slamming at stroke end, keeping cycle times high and noise low.
Lift a guard or light door with about 8 kg capacity at a 2:1 margin. The adjustable extend stroke lets you set the exact raised height without mechanical stops.
This 20 mm bore sits between the 16 mm (100.5 N push) and 25 mm (245.3 N push) options. Choose it when you need more force than a 16 mm but want to keep the envelope compact. The adjustable stop and cushion shine in applications where you must set a forward position quickly and run at speed without hard impacts.
Remember, the stop screw sets the extend end position only-it is not a mid-stroke lock, and the cylinder will drift if air pressure is lost. For holding a load, add an external rod lock or pilot check valve. This SKU has no magnet, so it cannot accept a sensor; choose the -S version for CMSG/DMSG/EMSG switches. The SDB pivot block is not available on this adjustable-stroke model.
Quick checklist
At 0.5 MPa, push is 157 N and pull is 131.9 N. At 0.7 MPa, push is 219.8 N and pull is 184.7 N. Theoretical maximum force is 32 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa.
An external stop screw shortens the extend end by up to 30 mm, giving a usable extend of 170-200 mm; retract is always full. The needle-set air cushion at both ends decelerates the piston near stroke end to absorb shock. The screw sets position, not a lock-the cylinder drifts on air loss. This SKU has no magnet for sensors; choose -S for CMSG/DMSG/EMSG compatibility.
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