
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X450SU is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Delivering 879.6 N of push force at 0.7 MPa, the AirTAC MIC40X450SU is a robust round-body mini cylinder built for demanding tasks. This double-acting actuator features a stainless-steel barrel and piston rod that resist mild corrosion and washdown environments. A 1/4" port supplies the 16 mm rod, driving a 450 mm stroke with a theoretical maximum capacity of 128.1 kgf.
The defining feature is the adjustable air cushion at both ends. By turning a needle valve, you tune the deceleration to absorb high-speed end-of-stroke shock, protecting the load and reducing noise. For vertical setups, the 628.3 N push force at 0.5 MPa lifts about 32 kg safely with a 2:1 margin. The U back cover provides a 90-degree port orientation for tight routing, while the -S suffix enables CMSG, DMSG, or EMSG sensors.
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X450SU |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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. |
| ×450 | 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.
Uses the 628.3 N push force at 0.5 MPa to push heavy cartons off a high-speed main line, relying on the adjustable cushion to stop the 450 mm stroke smoothly without slamming.
Raises components weighing up to 32 kg in a storage rack, taking advantage of the stainless build for humid settings and the U back cover for compact 90-degree fitting access.
Folds large cardboard flaps on oversized pallets where the 128.1 kgf theoretical max force ensures positive actuation through the full 450 mm travel.
If 879.6 N at 0.7 MPa is excessive, the smaller Ø32 bore provides 563.0 N push, but there is no larger MIC bore above 40 mm. Choose this Ø40 model when moving heavy loads at high speeds where the adjustable air cushion is essential to prevent impact damage. Keep operating speed between 30-800 mm/s for optimal cushion performance.
Remember that the air cushion only decelerates the piston near the stroke end; it does not function as a lock or brake. If air pressure drops, the piston will drift, so install an external rod lock or pilot-operated check valve for suspended loads. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion. The built-in magnet allows for position sensing.
Quick checklist
This double-acting round-body mini cylinder has a 40 mm bore, a 16 mm rod, and a 1/4" port. 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 is 128.1 kgf at 1.0 MPa.
No. The adjustable air cushion only decelerates the piston near the end of the stroke to reduce shock; it is not a brake. If air pressure drops, the piston will drift. For vertical loads, you must use an external rod lock or a pilot-operated check valve.
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