
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC25X20SU is a genuine double acting + cushion round-body mini air cylinder with a Ø25mm bore and 20mm 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.
Designed with a 25 mm bore and 20 mm stroke, this double-acting round-body mini cylinder delivers 245.3 N of push force at 0.5 MPa. The stainless-steel barrel and piston rod provide reliable mild corrosion resistance for washdown or humid settings. A variable air cushion at both ends lets you dial in the deceleration to absorb high-speed end-of-stroke shock, protecting your payload and reducing noise far better than a fixed rubber bumper.
Featuring a built-in piston magnet, this unit supports CMSG, DMSG, and EMSG position switches for precise end-of-stroke feedback. It uses a 1/8" port and an M10x1.25 male rod thread. With a safe working load around 147 N, it lifts about 12.5 kg vertically with a 2:1 safety margin. The U-style back cover provides a 90-degree mounting orientation for tight spatial constraints.
| Model | Airtac MIC Cushioned Mini Cylinder MIC25X20SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting + 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -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.
Handles light carton diverting on a conveyor where the 245 N push force and tuned end-cushions prevent jarring stops during rapid 20 mm strokes.
Drives a sealing jaw in a packaging line, using the stainless build to resist moisture and the adjustable cushion to protect the heat seal bar from impact.
Ejects molded plastic parts from a fixture, relying on the 12.5 kg vertical lift capacity and the 90-degree U cover to fit a compact machine cell.
For lighter duty, the MIC20 bore provides 157 N of push force at 0.5 MPa, while stepping up to the MIC32 yields 402 N if your application demands more thrust. The adjustable air cushion is essential here when cycling at high speeds or moving heavier masses, as it prevents harsh impacts at the 20 mm stroke ends. Remember that the cushion only decelerates the piston; it does not act as a brake. If you need to hold a load vertically during air loss, install an external rod lock or a pilot-operated check valve.
This SKU includes the -S magnet, making it fully compatible with CMSG, DMSG, and EMSG sensors. You can mount it using standard ISO 6432 mini-cylinder brackets, foot mounts, or flanges to match your frame.
Quick checklist
This 25 mm bore cylinder uses a 1/8" port and an M10x1.25 male rod thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum force of 50 kgf at 1.0 MPa.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. The adjustable air cushion at both ends uses a needle valve to regulate exhaust and decelerate the piston near stroke end, but it is not a locking brake.
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