
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X25SU is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 25mm 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.
High-speed actuation demands precise end-of-stroke control, which the AirTAC MIC20X25SU delivers through needle-adjustable air cushions at both ends. This double-acting, round-body stainless steel mini cylinder provides a push force of 157 N at 0.5 MPa, making it a robust choice for light-duty automation.
The Ø20 mm bore features an M8x1.25 male rod thread and a 1/8" port. Its stainless barrel and rod resist mild corrosion and washdown environments. Fitted with a U-type 90-degree rear cover, it uses the standard ISO 6432 mounting interface for easy bracket interchange. The built-in -S magnet supports CMSG, DMSG, and EMSG sensors. For vertical moves, it lifts about 8 kg with a 2:1 safety margin.
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X25SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Double acting + 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.
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 at high speed where the adjustable air cushion prevents harsh end-stop slamming on a 25 mm stroke.
Ejects molded components reliably using 157 N of push force, with the needle cushion absorbing the shock of rapid ejection cycles.
Lowers 8 kg fixtures smoothly, relying on the double-acting air cushion to prevent dropping loads abruptly at the stroke end.
When sizing this 20 mm bore, stepping down drops you to the MI16 bumper-only version, whereas stepping up to the MIC25 yields 245 N of push force at 0.5 MPa. Choose this MIC20X25SU when operating at high speeds where the adjustable needle cushion is required to decelerate the load smoothly and cut noise. Remember that the cushion only decelerates the piston near the stroke end; it does not act as a brake. To hold a load vertically on air loss, install an external rod lock or pilot check valve. The -S magnet enables position sensing, and you can mount it via LB foot, FA flange, or TC trunnion.
Quick checklist
This double-acting cylinder has a 1/8" port and an M8x1.25 male rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
Yes, the -S suffix means a piston magnet is built-in for CMSG, DMSG, or EMSG switches. The adjustable air cushion at both ends uses a needle valve to decelerate the piston near stroke end to reduce shock, but it is not a locking brake.
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