
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SCM is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 300mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavier automation tasks with ease. The stainless-steel barrel and piston rod resist mild corrosion, making it highly suitable for damp environments or washdown zones where painted steel alternatives fail. Its riveted construction keeps the unit compact, while the 1/4" port and M10x1.25 male rod thread provide robust pneumatic and mechanical interfaces.
The fixed TPU bumper pads absorb stroke-end impact to protect the mechanism, though they do not act as an adjustable air cushion. Because this SKU includes the -S magnet, you can mount CMSG, DMSG or EMSG switches directly for position sensing. For practical sizing, plan for a safe working load of roughly 241 N at 0.5 MPa, which translates to lifting about 20.5 kg vertically with a 2:1 safety margin.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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.
| 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.
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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.
Actuates a heavy routing flap on a logistics conveyor, using its 402.2 N thrust to push dense parcels onto secondary sorting lanes.
Ejects processed specimen trays from a testing carousel, relying on the stainless build to withstand chemical wipe-downs and humid lab conditions.
Clears stamped metal blanks from a low-tonnage press bed, using the 300 mm stroke to reach deep into the tooling area.
When sizing this 32 mm bore, compare it against its neighbours: a 25 mm bore provides 245.3 N of push at 0.5 MPa, whereas stepping up to a 40 mm bore yields 628.3 N. This model offers a balanced middle ground for moderate loads. The CM round end cover provides a specific rear mounting and port orientation to suit your spatial constraints.
At a 300 mm stroke, the Ø12 mm rod is well within the 500 mm maximum standard stroke, but you should still account for potential side-loading and rod bending over that extension distance. Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centred; the TPU bumpers only decelerate the stroke end and will not lock the load. To hold a suspended weight securely, integrate an external rod lock or a pilot-operated check valve into your circuit.
Quick checklist
This 32 mm bore cylinder features a 1/4" 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 force of 82 kgf at 1.0 MPa.
Yes to sensors, no to adjustable cushions. The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. However, it relies on fixed TPU bumper pads for end-of-stroke deceleration; it does not have the adjustable air cushion found on MIC variants.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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