Airtac MIC Cushioned Mini Cylinder MIC40X25SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X25SU is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 25mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke25 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 MIC40X25SU
Delivering 628.3 N of push force at 0.5 MPa, this double-acting stainless steel round-body mini cylinder handles heavy-duty actuation within a short 25 mm travel. The adjustable air cushion at both ends allows you to dial in the needle valve to absorb high-speed end-of-stroke shock, protecting your machinery and reducing noise far better than a fixed rubber bumper. Built with a corrosion-resistant stainless barrel and rod, it survives mild washdown environments. It features a U-style 90-degree rear cover and a 1/4 inch port.
This 40 mm bore variant provides a theoretical maximum output of 128.1 kgf at 1.0 MPa. For practical sizing, its safe working load is roughly 377 N, meaning it lifts about 32 kg vertically with a 2:1 safety margin. Because the -S suffix denotes a built-in piston magnet, you can mount CMSG, DMSG, or EMSG electronic or reed switches directly for position sensing.
Airtac MIC Cushioned Mini Cylinder MIC40X25SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X25SU |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 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 MIC40X25SU
| MIC | round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 MIC40X25SU Is Used
Heavy Clamping Press
Uses the 628.3 N push force to secure thick metal plates, while the adjustable cushion softens the impact of the heavy 40 mm piston at high operating speeds.
Package Divert Arm
Swings a robust routing gate via the U-style 90-degree rear cover, relying on the 1/4 inch port for rapid airflow to maintain fast 25 mm sorting strokes.
Pallet Stopper Gate
Halts heavy pallets on a roller line, using the 32 kg vertical lift capacity and stainless construction to withstand industrial wear and mild washdown.
Is the Airtac MIC Cushioned Mini Cylinder MIC40X25SU the Right Cylinder?
When sizing this actuator, compare it against adjacent bores. If you need less force, the MIC32 delivers 402.2 N push at 0.5 MPa; there is no larger standard MIC bore above 40 mm. The adjustable cushion proves essential when moving heavy loads at high speeds up to 800 mm/s, as it prevents harsh impacts. Note that the cushion only decelerates the piston near the stroke end and does not function as a brake. If your application must hold a load vertically during air loss, add an external rod lock or pilot-operated check valve, because the piston will drift otherwise. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets.
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 MIC40X25SU FAQ
This 40 mm bore cylinder features a 1/4 inch air port and an M12x1.25 male rod thread. At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa the push is 879.6 N and pull is 738.9 N. 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, never as a brake. The piston will drift on air loss. For holding loads, install an external rod lock or pilot check valve. The -S magnet enables CMSG, DMSG, or EMSG sensors for position confirmation.
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.
Request a Quote for Airtac MIC Cushioned Mini Cylinder MIC40X25SU
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