Airtac MI25~40 Stainless Steel Mini Cylinder MI32X80U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X80U is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 80mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke80 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- 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 MI25~40 Stainless Steel Mini Cylinder MI32X80U
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MI32X80U is a robust round-body mini cylinder built for demanding automation. It features a stainless-steel barrel and piston rod that shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. The 80 mm stroke operates via a 1/8 inch port, and the U suffix denotes a 90-degree rear cover for versatile port and mounting orientation.
Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches. Fixed TPU bumper pads absorb the impact at stroke end to protect the mechanism, though they decelerate rather than provide adjustable cushioning. For practical sizing, plan for a safe working load of roughly 241 N, which translates to lifting about 20.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X80U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X80U |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 | Fixed TPU bumper pads |
| 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 Ø32 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI32X80U
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 MI25~40 Stainless Steel Mini Cylinder MI32X80U Is Used
Package Diverting Gate
Actuates a routing flap on a logistics conveyor, using its 402.2 N push force to reliably redirect heavy cartons onto secondary sorting lanes.
Stamping Pin Press
Drives a short 80 mm stroke pin marker to emboss identification codes into aluminium housings on an assembly line.
Pallet Stopper Arm
Extends a physical barrier to halt incoming pallets at a packaging station, with the stainless build resisting dust and occasional moisture.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X80U the Right Cylinder?
When sizing this 32 mm bore, compare it against its neighbours: a 25 mm bore yields 245.3 N of push at 0.5 MPa, while stepping up to the 40 mm bore provides 628.3 N. This makes the MI32X80U the right middle ground for medium-force tasks. The 80 mm stroke is well within the 500 mm maximum, keeping the rod bending risk low even under dynamic loads.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred, as the bumpers only soften the end of travel and act as neither a lock nor a brake. To suspend a load safely, integrate an external rod lock or a pilot-operated check valve into your circuit. If your sequence requires position feedback, select the -S magnet version to enable sensor mounting.
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 MI25~40 Stainless Steel Mini Cylinder MI32X80U FAQ
This 32 mm bore cylinder features a 1/8 inch port and a male M10x1.25 rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, increasing to 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, because this specific model lacks the -S magnet, it cannot host CMSG, DMSG or EMSG switches. You would need to specify the -S variant to enable magnetic sensing. Additionally, the U suffix indicates a 90-degree back cover, and fixed TPU pads handle end-of-stroke deceleration.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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