Airtac MIC Cushioned Mini Cylinder MIC40X350SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X350SU is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 350mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke350 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MIC Cushioned Mini Cylinder MIC40X350SU
Delivering up to 879.6 N of push force at 0.7 MPa, this double-acting round-body mini cylinder handles heavy loads across its 350 mm stroke. The stainless-steel barrel and Ø16 mm piston rod resist mild corrosion and washdown environments. A built-in piston magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing. The U-style back cover provides a 90-degree port and mounting orientation.
Unlike standard bumper models, the MIC series features a needle-adjustable air cushion at both ends. You can tune the deceleration to absorb end-of-stroke shock at high cycling speeds, protecting your payload and reducing noise. Based on the 628.3 N push force at 0.5 MPa, it yields a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin. It operates at 30-800 mm/s with a 1/4" air port.
Airtac MIC Cushioned Mini Cylinder MIC40X350SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X350SU |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac MIC Cushioned Mini Cylinder MIC40X350SU
| MIC | round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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.
Where the Airtac MIC Cushioned Mini Cylinder MIC40X350SU Is Used
Heavy Carton Diversion
Pushes loaded pallets or heavy cartons at high speed on a packaging line, using the adjustable air cushion to stop the 350 mm stroke smoothly without jarring the contents.
Vertical Load Lowering
Lowers a 30 kg fixture reliably; the needle-set cushion decelerates the descent at the bottom of the stroke, preventing a hard mechanical slam.
Washdown Gate Actuation
Drives a stainless-steel sorting gate in a humid food-handling zone, where the corrosion-resistant barrel and rod withstand daily moisture exposure.
Is the Airtac MIC Cushioned Mini Cylinder MIC40X350SU the Right Cylinder?
When sizing this 40 mm bore, stepping down to a MIC32 bore drops the 0.5 MPa push force to 402.2 N, while no larger MIC bore exists. Choose this 40 mm model when your application demands high thrust and rapid cycling where the adjustable air cushion is essential to prevent harsh end-of-stroke impacts. The cushion needle only decelerates the piston near the stroke ends; it does not function as a brake.
If the air supply drops, the piston will drift and cannot hold a vertical load. For secure position holding, integrate an external rod lock or a pilot-operated check valve into your circuit. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets to fit your frame.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MIC Cushioned Mini Cylinder MIC40X350SU FAQ
This 40 mm bore cylinder features a 1/4" air port and an M12x1.25 male rod thread. At 0.5 MPa it provides 628.3 N push and 527.8 N pull force. At 0.7 MPa it yields 879.6 N push and 738.9 N pull. 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 and acts purely as a shock absorber, not a brake. If air pressure is lost or the valve is centered, the piston will drift. You must use an external rod lock or pilot check valve to hold a suspended load.
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1-Year Warranty
Covers non-human-caused product damage.
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