Airtac MIC Cushioned Mini Cylinder MIC40X85SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X85SU is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 85mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke85 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MIC Cushioned Mini Cylinder MIC40X85SU
Built for heavy-duty miniature pneumatics, the AirTAC MIC40X85SU is a round-body stainless-steel mini cylinder featuring a 40mm bore and an 85mm stroke. As a double-acting actuator, it generates a robust 628.3N of push force and 527.8N of pull force at 0.5MPa, peaking at a theoretical 128.1kgf at 1.0MPa. The stainless barrel and rod resist mild corrosion and washdown environments, while the 1/4" port and M12x1.25 male rod thread handle substantial airflow and mounting loads.
The defining feature of this MIC series is the needle-set adjustable air cushion at both ends, which decelerates the piston smoothly at high speeds to eliminate end-of-stroke shock. This makes it far superior to a fixed bumper for moving heavy loads. Factoring in a 2:1 safety margin, this actuator lifts about 32kg vertically, giving you a safe working load of roughly 377N. The U-type back cover provides a 90-degree port and mounting orientation for tight spatial constraints.
Airtac MIC Cushioned Mini Cylinder MIC40X85SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X85SU |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 85 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 MIC40X85SU
| MIC | round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×85 | 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 MIC40X85SU Is Used
Package Diverting
Handles heavy carton diverting on high-speed conveyors where the adjustable cushion absorbs the kinetic energy of shifting 30kg loads without slamming.
Vertical Palletizing
Lifts components in compact palletizing cells, using the 628.3N thrust to elevate parts while the cushions prevent jarring drops at the stroke bottom.
Press Ejection
Ejects dense molded parts from small presses, relying on the stainless build for mild corrosion resistance in humid manufacturing zones.
Is the Airtac MIC Cushioned Mini Cylinder MIC40X85SU the Right Cylinder?
When sizing this 40mm bore, dropping down to the MIC32X50 reduces your push force to 402.2N at 0.5MPa, while there is no larger standard MIC bore available above 40mm. Choose the MIC40X85SU when moving heavier masses at high cycle rates where the adjustable air cushion is essential to prevent impact damage. Remember that the cushion only decelerates near the stroke end; it does not function as a 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. The -S magnet is present here, enabling CMSG, DMSG, or EMSG sensors for position detection, and you can mount it via LB foot, FA flange, SDB pivot, or TC trunnion.
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 MIC40X85SU FAQ
This double-acting round-body mini cylinder uses a 1/4" port and an M12x1.25 male rod thread. It delivers 628.3N push and 527.8N pull at 0.5MPa, 879.6N push and 738.9N pull at 0.7MPa, with a theoretical maximum of 128.1kgf at 1.0MPa.
No, the adjustable air cushion only decelerates the piston near the end of the stroke; it is not a lock or brake. If air is lost, the piston will drift. For vertical load holding, you must install an external rod lock or a pilot-operated check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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