
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X225SU is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 225mm 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 for high-speed automation, the AirTAC MIC20X225SU relies on a needle-set variable air cushion at both ends to decelerate the piston smoothly, cutting end-of-stroke shock and noise that a fixed bumper cannot absorb. This double-acting stainless steel round-body mini cylinder features a 20mm bore, a 225mm stroke, and a U 90-degree rear cover for flexible port orientation. It uses a 1/8" port and an M8x1.25 male rod thread.
Delivering 157N of push force and 131.9N of pull force at 0.5MPa, it handles a safe working load of roughly 94N and lifts about 8kg vertically with a 2:1 safety margin. The stainless barrel and piston rod resist mild corrosion and washdown environments. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position switches. It conforms to the ISO 6432 mounting interface for standard mini-cylinder brackets.
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X225SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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. |
| ×225 | 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.
Pushes light parcels at high speed on a sorting line where the adjustable air cushion prevents harsh slams during rapid diverting strokes.
Ejects machined components from a fixture, using the 157N push force to clear parts quickly without damaging the surface finish.
Lowers an 8kg tooling head smoothly, relying on the needle-set cushion to absorb kinetic energy at the bottom of the 225mm travel.
When sizing this 20mm bore unit, consider stepping down to the 16mm MIC if your load is lighter, which provides 100.5N push at 0.5MPa. If your application requires more power, the 25mm MIC offers 245.3N push at 0.5MPa. The adjustable cushion is essential when operating at high speeds or moving heavier masses, as it prevents harsh impacts. Remember that the cushion only decelerates the piston near the stroke end; it does not function as a brake. If you need to hold a load vertically during air loss, install an external rod lock or pilot-operated check valve. You can mount this cylinder using LB foot, FA flange, SDB pivot, or TC trunnion hardware.
Quick checklist
This 20mm bore cylinder uses a 1/8" port. At 0.5MPa it provides 157N push and 131.9N pull. At 0.7MPa it provides 219.8N push and 184.7N pull. The theoretical maximum force is 32kgf at 1.0MPa.
No, the adjustable air cushion only decelerates the piston near the end of the stroke and acts purely as a shock absorber, not a brake. The piston will drift on air loss. For vertical load holding, you must use an external rod lock or pilot-operated check valve.
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