
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X20SCM is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 20mm 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 MIC40X20SCM is a robust double-acting round-body mini cylinder built for demanding short-stroke tasks. It features a stainless-steel barrel and piston rod that resist mild corrosion and washdown environments. A 1/4" port supplies the air, driving a 16 mm rod with an M12x1.25 male thread.
Unlike standard bumper units, this model uses a variable air cushion at both ends. Turning the cushion needle lets you tune the end-of-stroke deceleration, effectively soaking up shock at high speeds to protect your payload. For sizing context, this bore yields a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin.
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X20SCM |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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. |
| ×20 | 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.
Applies the 879.6 N push force available at 0.7 MPa to seat bearings or stamp short parts, relying on the tuned air cushion to prevent harsh mechanical stops.
Pushes heavier product lanes quickly on a washdown line, where the stainless build handles moisture and the 20 mm stroke cycles rapidly without shock.
Drives short-stroke sealing mechanisms that require substantial pinch force, using the dual end cushions to silently decelerate the 16 mm rod before impact.
When sizing this 40 mm bore, stepping down to an MIC32X50 drops the 0.5 MPa push force to 402.2 N, while no larger MIC bore exists in this series. Choose this heavy-duty 40 mm variant when moving substantial mass at high velocities, as the dual adjustable air cushions are critical for preventing end-of-stroke impact damage. The CM round rear cover provides specific port and mounting orientation for compact integration.
Remember that the air cushion only decelerates the piston near the stroke end; it does not function as a lock or brake. If your application must hold a load vertically during air loss or valve centering, the piston will drift, so you must add an external rod lock or pilot-operated check valve. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors for position detection.
Quick checklist
This 40 mm bore cylinder features a 1/4" air port and a 16 mm rod. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, or 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force at 1.0 MPa is 128.1 kgf.
The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG sensors. The adjustable air cushion only decelerates the piston near stroke end and does not act as a brake; the cylinder will drift on air loss, so use an external rod lock for suspended loads.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.