
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X450SU is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 450mm 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.
Driving 157 N of push force at 0.5 MPa, this double-acting stainless steel round-body mini cylinder handles long 450 mm strokes with precision. The Ø20 mm bore features a 1/8 inch port and an M8x1.25 male rod thread. Because it carries the -S suffix, a built-in piston magnet enables direct mounting of CMSG, DMSG, or EMSG reed and electronic switches for position sensing.
Twin adjustable air cushions at both stroke ends let you needle-set the deceleration to silence end-of-travel bang at high cycling speeds, outperforming fixed bumper designs. The rolled stainless barrel and rod resist mild corrosion and washdown, and the U-style 90-degree rear cover simplifies port and mounting orientation. With a safe working load around 94 N, it lifts about 8 kg vertically with a 2:1 safety margin.
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X450SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 450 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. |
| ×450 | 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.
Uses the 157 N push force to deflect light cartons on a high-speed sorting line, relying on the adjustable cushion to prevent end-stroke impact.
Raises an 8 kg access flap with a 2:1 safety margin, where the stainless build withstands humid dock environments.
Moves a tooling head over 450 mm to seat delicate components, using the needle-set cushion to protect parts from sudden stops.
When sizing this 157 N push unit, dropping down to the Ø16 bore lowers thrust to 100.5 N, while stepping up to the Ø25 bore raises it to 245.3 N at 0.5 MPa. The adjustable cushion matters most when moving heavy loads at high velocities, as it decelerates the piston smoothly without bouncing. It fits standard ISO 6432 mini-cylinder brackets and clevises for easy drop-in interchange.
Remember that the air cushion only slows the piston near stroke end; it does not act as a brake. If air pressure drops, the piston drifts, so fit an external rod lock or pilot-operated check valve for suspended loads. The U rear cover and -S magnet match perfectly with CMSG, DMSG, or EMSG sensors.
Quick checklist
This double-acting cylinder pushes 157 N and pulls 131.9 N at 0.5 MPa, and pushes 219.8 N while pulling 184.7 N at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa. It uses a 1/8 inch air port and an 8 mm piston rod.
No, the adjustable air cushion only decelerates the piston near the stroke end to reduce shock; it is not a lock or brake. The -S suffix means the cylinder has a built-in magnet, allowing you to attach CMSG, DMSG, or EMSG sensors for position detection.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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