
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X130-50S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 130mm 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.
Trim the forward stop by up to 50 mm on site without swapping hardware: the MICJ20X130-50S is a double-acting, round-body stainless-steel mini cylinder with a 130 mm nominal stroke and an adjustable extend end position. A needle-set variable air cushion at both ends soaks up high-speed shock, letting you set the exact forward position and control the impact. The built-in piston magnet (-S) supports CMSG, DMSG, and EMSG switches for precise end-of-stroke detection.
Delivering 157 N of push force at 0.5 MPa, this Ø20 bore actuator provides a safe working load of roughly 94 N, capable of vertically lifting about 8 kg with a 2:1 safety margin. It uses the standard ISO 6432 mounting interface for easy bracket integration, features a 1/8" air port, and relies on a stainless barrel and rod for mild washdown resistance. The stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X130-50S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 130 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. |
| ×130 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Dial in the 50 mm extend stop to deflect packages of varying sizes on a conveyor without changing the cylinder, using the 157 N push force to push light goods reliably.
Use the dual adjustable air cushions to absorb shock at the end of the 130 mm stroke, preventing slamming on fast-cycling flow control gates.
Lift approximately 8 kg of tooling or components vertically with a 2:1 safety margin, relying on the CMSG sensor to confirm the raised position.
When sizing this 20 mm bore, step down to the Ø16 bore if your load is lighter—it yields 100.5 N push at 0.5 MPa—or step up to the Ø25 bore, which provides 245.3 N push, if you need more thrust. The 50 mm extend adjustment window is ideal for fast set-position moves where you need to dial in a precise forward stop without machining spacers. The dual adjustable cushions tame the impact at high cycling speeds.
This SKU includes the -S magnet for CMSG/DMSG/EMSG sensors; without the S suffix, the cylinder cannot accept a switch. You can use LB foot, FA flange, or TC trunnion mounts, but note that the SDB pivot block is not available on this adjustable variant. Remember that the air cushion only decelerates near the stroke end—it does not hold position. For load holding on air loss, install an external rod lock or pilot-operated check valve.
Quick checklist
This Ø20 mm cylinder has a 1/8" air port and an M8x1.25 male rod thread. At 0.5 MPa it provides 157 N push and 131.9 N pull; at 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 50 mm on site, giving a usable forward range of 80-130 mm; the retract stroke remains full. Needle valves control a variable air cushion at both ends to decelerate the piston before impact. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG sensors.
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