The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X30SCM is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 30mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty actuation in tight spaces. The MIC40X30SCM features a stainless-steel barrel and piston rod that resist mild corrosion and washdown environments. Unlike fixed-bumper designs, its integrated needle valves provide an adjustable air cushion at both ends, allowing you to tune the deceleration and drastically reduce end-of-stroke shock when cycling at speeds up to 800 mm/s.
Equipped with a 1/4" port and a robust Ø16 mm rod with an M12x1.25 male thread, the unit carries a theoretical maximum force of 128.1 kgf at 1.0 MPa. For practical sizing, expect a safe working load around 377 N, which means it lifts about 32 kg vertically with a 2:1 safety margin. The CM round end cover dictates the rear port orientation, and the -S suffix denotes a built-in piston magnet for position sensing.
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X30SCM |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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. |
| ×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.
Pushes dense cartons off a high-speed sorting line using the 628.3 N thrust, relying on the tuned air cushion to stop the 30 mm stroke abruptly without slamming the frame.
Ejects dense metal stampings from a die bed, where the stainless construction tolerates cutting fluid splash and the needle valves absorb the sudden mass transfer.
Applies downward clamping pressure on heavy bulk containers, using the 32 kg vertical lift capacity to hold lids flat while a sealing head applies heat.
When sizing this 40 mm bore actuator, compare it directly against the adjacent MIC32 option, which provides 402.2 N of push force at 0.5 MPa. Step up to this model when your application demands the full 628.3 N push or 527.8 N pull at 0.5 MPa, specifically for moving heavier masses where the adjustable air cushion becomes essential to prevent destructive impact at high travel speeds. If your load drops below 400 N, the smaller bore offers a lighter footprint.
Remember that the adjustable cushion only decelerates the piston near the stroke end; it does not function as a brake or lock. If the air supply drops, the piston will drift, so fit an external rod lock or pilot-operated check valve to suspend loads safely. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets, while the internal magnet supports CMSG, DMSG, and EMSG switches for precise end-position detection.
Quick checklist
This 40 mm bore cylinder uses a 1/4" port and a Ø16 mm rod. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the adjustable air cushion only decelerates the piston near the end of its stroke and acts purely as a shock absorber, not a brake. The piston will drift if air pressure drops, so you must install an external rod lock or pilot check valve to hold suspended loads.
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