
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X75SU is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 75mm 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, the AirTAC MIC40X75SU is a robust round-body mini cylinder built for heavy-duty automation. This double-acting actuator features a stainless-steel barrel and piston rod, offering reliable mild corrosion and washdown resistance without relying on a tie-rod or extruded profile frame. A built-in piston magnet (-S) enables seamless position sensing.
The defining feature of this 40 mm bore unit is the adjustable air cushion at both ends, allowing you to needle-set the deceleration to absorb high-speed stroke shock. It yields a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin. The U-style back cover provides a 90-degree port orientation, and the 1/4" air port matches the substantial 16 mm rod and M12x1.25 male thread.
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X75SU |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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. |
| ×75 | 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.
Handles robust 30 kg cartons on high-speed sorting lines, using the adjustable cushion to softly stop the 75 mm stroke without slamming.
Pushes heavy machining fixtures into position, leveraging the 628.3 N push force and stainless build to withstand industrial washdowns.
Ejects dense manufactured parts at 800 mm/s, relying on the needle-set air cushion to decelerate the load and protect the machine frame.
When sizing this actuator, consider the 32 mm bore variant offering 402.2 N push at 0.5 MPa for lighter loads, as there is no larger standard MIC bore above 40 mm. The adjustable cushion proves essential when driving heavy payloads at high speeds, preventing end-of-stroke impact. Note that the cushion only decelerates the piston; it does not lock or hold the load. If your application requires position holding upon air loss, install an external rod lock or pilot-operated check valve. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets.
Quick checklist
This double-acting cylinder delivers a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It uses a 1/4" air port and a 16 mm piston rod.
No, the adjustable air cushion only decelerates the piston near stroke end and acts as a brake; it will not hold a load on air loss, so you need an external rod lock for vertical holding. Because this is the -S variant, it includes a built-in magnet compatible with CMSG, DMSG, and EMSG switches.
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