
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X75CM is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 75mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Delivering a robust 402.2 N of push force at 0.5 MPa, the AirTAC MI32X75CM is a double-acting round-body mini cylinder built for demanding automation. Its stainless-steel barrel and piston rod shrug off mild corrosion, making it highly suitable for damp environments where painted steel quickly degrades. The unit features a 1/4" port and a CM round end cover that keeps the rear profile smooth for tight mounting envelopes.
Rather than planning to use the maximum theoretical output, you should size this actuator for a safe working load of roughly 241 N, which represents about 60% of the 0.5 MPa push rating. In practical vertical lifting terms, this translates to hoisting approximately 20.5 kg safely with a 2:1 margin. Fixed TPU bumper pads absorb the impact at the stroke extremes, and because this specific SKU lacks the -S suffix, it cannot accept CMSG, DMSG, or EMSG magnetic position switches.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X75CM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 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. |
| ×75 | 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.
Pushes heavy wooden or plastic pallets onto secondary packaging lines using its 402.2 N push force at 0.5 MPa.
Actuates a 20.5 kg vertical lift gate in cold storage facilities, leveraging the stainless steel rod to resist humid conditions.
Ejects formed metal components from a hydraulic press bed, utilizing the CM round end cover for flush rear mounting.
When sizing this 32 mm bore actuator, compare your real load against the 402.2 N push force at 0.5 MPa. If your application requires less punch, stepping down to the 25 mm bore yields 245.3 N of push force; conversely, if you need substantially more power, the 40 mm bore generates 628.3 N. This 75 mm stroke sits well within the 500 mm maximum standard limit, keeping rod bending stress low. Remember that the fixed TPU bumpers only soften the end-of-stroke impact and will not act as a brake; if air pressure drops, the piston will drift. To lock a load securely in place during an air loss event, integrate an external rod lock or a pilot-operated check valve. Furthermore, without the -S magnet option, position sensing is unavailable on this unit.
Quick checklist
This 32 mm bore cylinder delivers a push force of 402.2 N and a pull force of 345.6 N at 0.5 MPa. At 0.7 MPa, the push increases to 563 N and the pull to 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. It uses a 1/4" air port and a 12 mm piston rod with an M10x1.25 male thread.
No, because this specific model lacks the -S suffix, it does not have an internal magnet and cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing. Additionally, the fixed TPU bumper pads only decelerate the piston near the stroke end; they do not function as an adjustable air cushion.
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