
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X400SCATC is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 400mm 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, the AirTAC MIC20X400SCATC is a double-acting, round-body stainless steel mini cylinder built for a 400 mm stroke. It uses the ISO 6432 mounting interface for Ø20 bores, dropping cleanly into standard mini brackets and clevises. The stainless barrel and rod resist mild corrosion and washdown environments. Because this SKU includes the -S magnet, it is ready for CMSG, DMSG, or EMSG position switches.
A defining feature is the adjustable air cushion at both ends. By turning a needle valve, you tune the end-of-stroke deceleration to absorb high-speed shock, protecting the load and lowering noise compared to a fixed bumper. In practical terms, it handles a safe working load of about 94 N, lifting roughly 8 kg vertically with a 2:1 safety margin. Pneumatic supply connects via a 1/8" port.
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X400SCATC |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 400 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. |
| ×400 | 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.
At 30-800 mm/s, this cylinder pushes lightweight packages off a main belt. The adjustable air cushion prevents the 400 mm stroke from slamming to a stop, protecting the rod and package.
Lifting an 8 kg access flap vertically is well within its 157 N push capacity. The stainless build handles humid warehouse air, while the -S magnet tracks gate position.
Applying a precise 94 N working force to seat small components. The CA pivot cover and TC trunnion accommodate the off-center loads typical of multi-axis assembly jigs.
If you need less force, the smaller MIC16 bore provides 100.5 N of push at 0.5 MPa; stepping up to the MIC25 yields 245.3 N. The adjustable cushions on this Ø20 model matter most when driving a heavy load at high speed across the 400 mm stroke, as they prevent harsh impacts. Remember that the cushion only decelerates the piston near the end of travel—it is not a brake. If your application must hold a load vertically during air loss, add an external rod lock or pilot check valve. This configuration includes a CA rear pivot cover and a TC trunnion mounting accessory for articulated loads.
Quick checklist
This double-acting cylinder has a 1/8" port and an 8 mm piston rod. 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 of 32 kgf at 1.0 MPa.
No, the piston will drift on air loss. The adjustable air cushions at both ends only decelerate the rod near the end of the 400 mm stroke to reduce shock; they do not act as a brake. Use an external rod lock or pilot check valve to hold a suspended load.
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