
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC25X55SU is a genuine double acting + cushion round-body mini air cylinder with a Ø25mm bore and 55mm 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.
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding 25 mm bore tasks. The U-style rear cover provides a 90-degree mounting orientation, while the 1/8" port keeps air flow responsive. Because the -S suffix includes a piston magnet, you can mount CMSG, DMSG or EMSG switches for position sensing.
Twin adjustable air cushions let you dial in end-of-stroke deceleration, protecting payloads at high cycle speeds. The stainless barrel and rod shrug off mild washdown corrosion. For vertical moves, expect a safe working load around 147 N, lifting about 12.5 kg with a 2:1 safety margin.
| Model | Airtac MIC Cushioned Mini Cylinder MIC25X55SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 55 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. |
| ×55 | 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.
Snaps a 12 kg carton across a belt at speed, relying on the adjustable cushion to prevent harsh slams at the 55 mm stroke end.
Pushes finished parts out of a die using 245.3 N of thrust, with the U cover allowing a tidy 90-degree mount on the press frame.
Folds heavy cardboard flaps rapidly where the stainless rod resists factory grit and the needle-set cushion softens the impact.
If 245.3 N push at 0.5 MPa is too much, step down to the MIC20 (157.0 N push); if you need more muscle, the MIC32 offers 402.2 N. Choose this 55 mm stroke when you need short, fast moves where the needle-set cushion prevents harsh end impacts. It uses the ISO 6432 mounting interface, dropping into standard mini brackets.
Remember the cushion only decelerates the load; it is not a brake. If air pressure drops, the piston will drift, so fit an external rod lock or pilot check valve for vertical holding. The -S magnet enables sensors, and you can adapt mounting via LB foot, FA flange, SDB pivot or TC trunnion.
Quick checklist
This 25 mm bore cylinder has 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, or 343.4 N push and 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. The adjustable air cushion only decelerates the piston near stroke end; it does not lock or hold position. For vertical loads, install an external rod lock or pilot check valve to prevent drifting on air loss.
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