
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X55SCA is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm 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.
Damping high-speed strokes cleanly, the AirTAC MIC20X55SCA is a double-acting round-body mini cylinder built with a stainless-steel barrel and rod for mild washdown resistance. It carries an adjustable air cushion at both ends, letting you dial in the needle valve to absorb end-of-stroke shock, protect the payload, and cut noise. Because this 20 mm bore uses the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets and clevises.
Generating 157 N of push force and 131.9 N of pull force at 0.5 MPa, it fits light positioning tasks perfectly. The built-in piston magnet (-S) supports CMSG, DMSG, and EMSG switches for end-of-stroke sensing. For sizing, this yields a safe working load of roughly 94 N, lifting about 8 kg vertically with a 2:1 safety margin. The 1/8" port and M8x1.25 male rod thread complete the pneumatic interface.
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X55SCA |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 55 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. |
| ×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.
Ejecting small molded parts at high cycle rates relies on the adjustable cushion to prevent harsh rod-end slamming while delivering 157 N of push force at 0.5 MPa.
Diverting light cartons on a stainless washdown line benefits from the CA pivot mount and the 1/8" port, moving roughly 8 kg loads vertically with a safe 2:1 margin.
Sorting small electronic components uses the built-in magnet for CMSG sensors, confirming stroke endpoints while the needle-set dampening protects fragile items.
When sizing this 20 mm bore, stepping down to an MIC16 lowers the output to 100.5 N push at 0.5 MPa, while moving up to an MIC25 raises it to 245.3 N. Choose this 157 N class when moving light assemblies at high speeds, where the needle-set air cushion is essential to prevent harsh end-stop impacts. The CA rear pivot cover suits articulated rod-end loads.
Remember that the air cushion only decelerates the piston near the stroke end; it does not act as a brake. If air pressure drops, the piston will drift, so fit an external rod lock or pilot-operated check valve to hold a suspended load safely. The -S magnet enables position sensing, whereas a standard SKU without the S suffix cannot accept a sensor.
Quick checklist
This double-acting cylinder pushes with 157 N and pulls with 131.9 N at 0.5 MPa. At 0.7 MPa, push is 219.8 N and pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. It features a 1/8" air port and an 8 mm piston rod.
The variable air cushion at both ends uses a needle valve to trap exhaust air, decelerating the piston smoothly at high speeds to reduce shock. It is strictly a dampener, not a brake; the piston will drift on air loss, so use an external rod lock to hold loads.
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.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.