
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X30SU is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 30mm 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 157 N of push force at 0.5 MPa, this double-acting stainless steel round-body mini cylinder is built for rapid actuation. The MIC20X30SU features a 20 mm bore, a 30 mm stroke, an 8 mm piston rod, and a 1/8 inch port. Its defining advantage over bumper models is the adjustable air cushion at both ends, allowing you to needle-set the deceleration to absorb end-of-stroke shock at high speeds. The riveted stainless barrel and rod also provide reliable mild corrosion and washdown resistance.
Conforming to the ISO 6432 mounting interface, this unit drops directly into standard mini-cylinder brackets. The integrated -S piston magnet enables position sensing with CMSG, DMSG, or EMSG switches. For practical sizing, it yields a safe working load of roughly 94 N, meaning it can lift about 8 kg vertically with a 2:1 safety margin. The U back cover provides a 90-degree port orientation to simplify tubing layout in tight spaces.
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X30SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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. |
| ×30 | 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 rapidly deflect small cartons on a high-speed sorting line, relying on the adjustable air cushion to prevent harsh impacts at the 30 mm stroke end.
Pushes lightweight molded parts out of a machining fixture, where the needle-set deceleration protects delicate product surfaces during rapid ejection.
Drives a short 30 mm gripper actuation on a washdown-resistant stainless assembly station, using the -S magnet and CMSG switches to confirm grip position.
When sizing this 20 mm bore unit, stepping down is not an option within the cushioned MIC range, as smaller bores lack the adjustable cushion build. Stepping up to the MIC25X100S raises the 0.5 MPa push force to 245 N if your payload exceeds the 94 N safe working load. The adjustable cushion proves essential when operating at high speeds or moving heavy masses, as it protects the load by smoothly decelerating the piston near stroke end.
Because this is a double-acting cylinder, it will not hold a load if air pressure drops, as the piston drifts without a locking mechanism. The cushion only decelerates motion and acts as neither a brake nor a lock. For suspended loads, integrate an external rod lock or a pilot-operated check valve. You can mount this unit via LB foot, FA flange, SDB pivot, or TC trunnion hardware.
Quick checklist
This 20 mm bore cylinder has a 1/8 inch 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 force of 32 kgf at 1.0 MPa.
No, the adjustable air cushion only decelerates the piston near stroke end and does not function as a brake or lock, so the cylinder drifts on air loss. The -S suffix indicates a built-in piston magnet required for mounting CMSG, DMSG, or EMSG position sensors.
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Covers non-human-caused product damage.
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