Airtac MIC Cushioned Mini Cylinder MIC40X40U
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X40U is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 40mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke40 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MIC Cushioned Mini Cylinder MIC40X40U
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty motion in a compact stainless-steel form. It features a U-style back cover for 90-degree port orientation and a 1/4" air connection. The Ø40 bore yields a theoretical maximum output of 128.1 kgf, making it the most robust option in the MIC family.
A defining trait is the adjustable air cushion at both ends, letting you needle-set the deceleration to eliminate end-of-stroke shock at high speeds. The stainless barrel and rod resist mild corrosion and washdown environments. Without the -S magnet option, this specific SKU cannot host CMSG, DMSG, or EMSG sensors. Based on its 0.5 MPa push rating, it provides a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin.
Airtac MIC Cushioned Mini Cylinder MIC40X40U Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X40U |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MIC40X40U
| MIC | round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 MIC40X40U Is Used
Heavy Package Diversion
Uses the 628.3 N push force to positively deflect heavy cartons on a high-speed sorting line without rebound shock.
Carton Flap Folding
Drives thick cardboard flaps rapidly into position, relying on the adjustable cushion to soften the impact at stroke end.
Pallet Stopper Gate
Acts as a robust pneumatic stop for loaded pallets, utilizing the U-style rear cover for convenient 90-degree port access.
Is the Airtac MIC Cushioned Mini Cylinder MIC40X40U the Right Cylinder?
When sizing this actuator, step down to the MIC32 bore if your application only requires 402.2 N of push force at 0.5 MPa, as the Ø40 is the largest available in this series with no larger bore to scale up to. The adjustable air cushion is essential when cycling at high speeds or moving heavy payloads, as it protects the mechanism from impact damage. Remember that the cushion only decelerates the piston near the stroke end; it does not function as a brake. If you need to prevent drift on air loss, install an external rod lock or pilot check valve. Furthermore, since this model lacks the -S magnet, position sensing is not supported out of the box.
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 MIC40X40U FAQ
This double-acting cylinder uses a 1/4" air port and a 16 mm piston 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 is 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot host CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing. The adjustable air cushion and stainless steel build remain fully functional.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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