
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X80U is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Delivering robust linear motion, this double-acting round-body mini cylinder features a stainless-steel barrel and rod to resist mild corrosion in washdown settings. The U-type rear cover provides a 90-degree mounting orientation for compact installations. A 1/4" port feeds the 16mm piston rod, driving a substantial 879.6N of push force at 0.7 MPa.
The defining feature of the MIC series is the adjustable air cushion at both ends. By turning a needle valve, you tune the deceleration to eliminate end-of-stroke shock at high cycling speeds, protecting your payload. For sizing, this 40mm bore outputs 628.3N push at 0.5 MPa, yielding a safe working load of about 377N. It lifts roughly 32kg vertically with a 2:1 safety margin. Note this non-magnetized SKU cannot host a sensor; adding an -S magnet enables CMSG, DMSG, or EMSG switches.
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X80U |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MIC | round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 heavy packaged goods across high-speed conveyor belts, using the adjustable cushion to stop the 879.6N thrust smoothly without smashing the cardboard.
Lowers a 30kg stamping head rapidly, relying on the needle-set air cushion to decelerate the mass gently before the bottom of the 80mm stroke.
Drives robust lifting pins into dense pallet loads, where the stainless build withstands dusty ambient conditions and the 1/4" port delivers rapid actuation.
When sizing this 40mm bore unit, dropping down to the MIC32 bore reduces the 0.5 MPa push force to 402.2N, while the 40mm class itself tops the MIC range with no larger standard bore available. Select this model when moving heavier masses at high velocities, as the needle-set air cushions absorb kinetic energy that a fixed bumper cannot. It operates at speeds from 30-800 mm/s.
Remember that the cushion only decelerates the load near the stroke end; it does not function as a brake. If air pressure drops, the piston will drift, so fit an external rod lock or pilot check valve for secure load holding. This base SKU lacks a magnet and cannot accept position sensors, but you can pair it with LB foot, FA flange, SDB pivot, or TC trunnion mounts.
Quick checklist
This 40mm bore cylinder features a 1/4" air port and a 16mm piston rod with an M12x1.25 male thread. It generates 628.3N push and 527.8N pull at 0.5 MPa, 879.6N push and 738.9N pull at 0.7 MPa, with a theoretical maximum force of 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot host CMSG, DMSG, or EMSG switches. You must order the -S variant to enable sensing. The adjustable air cushion at both ends only decelerates the load and does not lock or hold the position if air loss occurs.
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