
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X175U is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 175mm stroke, 1/8" 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 substantial workloads within a compact footprint. The stainless-steel barrel and piston rod supply mild corrosion resistance, proving highly effective in damp production zones or washdown environments where painted units degrade. A 175 mm stroke falls comfortably inside the 500 mm maximum standard stroke for this bore, while the riveted construction keeps the body light. Fixed TPU bumper pads absorb the impact at stroke extremes, decelerating the piston smoothly without the complexity of adjustable cushioning. This specific configuration uses a 1/8" port and a U-type back cover that orients the air supply at 90 degrees for tight machinery layouts. Plan for roughly 241 N of actual work at 0.5 MPa to maintain optimal operating margins. Alternatively, you can expect to lift about 20.5 kg vertically when applying a sensible 2:1 safety factor to the available thrust.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X175U |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 175 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.
| 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. |
| ×175 | 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 packaging conveyor, using the 402.2 N thrust to push assorted cartons into secondary processing lanes.
Drives a small marking head to imprint batch codes into aluminium tags, relying on the fixed TPU pads to absorb the repeated end-of-stroke shock.
Raises loaded material totes within a humid cold-storage facility, leveraging the stainless rod to resist condensation and mild washdown spray.
When sizing this 32 mm bore, stepping down to a 25 mm unit drops the 0.5 MPa push force to 245.3 N, whereas moving up to a 40 mm bore increases it to 628.3 N. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches; you must select an -S variant if your control system requires end-of-stroke sensing. The U-type rear cover provides a 90-degree porting angle, which helps route hoses cleanly in confined spaces alongside standard LB, FA, SDB and TC mountings. Keep in mind that a plain double-acting cylinder drifts when air pressure is lost or the valve is centred—the fixed bumpers only soften the end impact and do not function as a brake. To suspend a load safely during an emergency stop, fit an external rod lock or install a pilot-operated check valve. Furthermore, at 175 mm of extension, ensure your mechanical setup prevents excessive side loading to avoid bending the Ø12 mm piston rod.
Quick checklist
This 32 mm bore double-acting cylinder uses a 1/8" air port. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, or 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet. You must purchase an -S variant to use CMSG, DMSG or EMSG switches. Additionally, the U-type back cover orients the port at 90 degrees, and the fixed TPU bumpers only decelerate the stroke end—they will not hold a load if air pressure drops.
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