Airtac MI25~40 Stainless Steel Mini Cylinder MI32X225SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X225SR is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 225mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke225 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 MI32X225SR
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty linear motion with a 225 mm stroke. The stainless-steel barrel and Ø12 mm rod resist mild corrosion and washdown, making it superior to painted alternatives in damp environments. Because it carries a built-in magnet (-S), you can mount CMSG, DMSG, or EMSG switches for position sensing.
For practical sizing, plan for a safe working load of roughly 241 N rather than the absolute maximum. This translates to lifting about 20.5 kg vertically with a 2:1 safety margin. The 1/8" port feeds air efficiently, while the R back cover provides an axial-in port orientation. Fixed TPU bumper pads absorb the impact at stroke ends, and the rolled riveted body keeps the unit compact.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X225SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X225SR |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 225 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 MI32X225SR
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×225 | 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 MI32X225SR Is Used
Package Diverter
Pushes heavy cardboard cartons off a main packaging line using the 402.2 N push force, with the 225 mm stroke clearing the belt edge completely.
Textile Loom Tensioner
Maintains consistent fabric tension in humid dyeing areas where the stainless-steel round body prevents rust buildup better than standard painted cylinders.
Pallet Gate Actuator
Swings a 20 kg access gate open and closed on an assembly floor, safely operating within the 20.5 kg vertical lift capacity and 2:1 safety margin.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X225SR the Right Cylinder?
When sizing this 32 mm bore, compare it against its neighbours: a 25 mm bore gives 245.3 N push at 0.5 MPa, while a 40 mm bore yields 628.3 N. If your application loses air or the valve centres, the piston will drift and drop the load, as the TPU pads only decelerate the stroke end rather than locking it. To hold a suspended weight securely, add an external rod lock or a pilot-operated check valve. For high-speed cycles requiring adjustable deceleration, step up to the MIC variable cushion variant.
With a 225 mm stroke, watch out for side-loading and rod bending forces. Mounting options like LB foot brackets, FA flanges, SDB pivot blocks, or TC trunnions help absorb misalignment. The rear R cover uses an axial port layout to save space along the cylinder axis.
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 MI32X225SR FAQ
This 32 mm bore cylinder features a 1/8" air port and an M10x1.25 male rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. 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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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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