
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X75CM is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 75mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust actuation tasks. The Ø25 mm bore uses a 1/8" air port and an M10x1.25 male rod thread, while the rear CM round end cover provides a clean, compact mounting footprint for tight assemblies. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
Built with fixed TPU bumper pads to decelerate the piston at stroke ends, it operates smoothly at speeds of 30-800 mm/s. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches. For practical sizing, plan for a real work load of about 147 N (60 percent of the 0.5 MPa rating), which equates to safely lifting a 12.5 kg part vertically with a 2:1 margin.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X75CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | 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.
Actuates a routing flap on a packaging line, using its 245.3 N thrust to push heavy cartons smoothly onto a secondary belt at 75 mm stroke.
Ejects machined metal components from a fixture, leveraging the stainless build to resist coolant mist while safely moving parts weighing up to 12.5 kg.
Drives a secondary clamping arm on an assembly jig, providing reliable holding pressure via the 1/8" port within a compact 25 mm bore footprint.
When sizing this 75 mm stroke unit, compare it against its neighbours: the Ø20 bore provides 157.0 N push at 0.5 MPa, while the larger Ø32 offers 402.2 N. This model occupies a strong middle ground for medium-force tasks. It conforms to the ISO 6432 mounting interface for Ø8-Ø25 bores, meaning it drops directly into standard mini-cylinder brackets and clevises without custom hardware.
Note that a plain double-acting cylinder drifts when air is lost or the valve is centred, as the TPU bumpers only soften the stroke end and act as neither a lock nor a brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve. If your application requires position feedback, select the -S magnet variant to enable sensor mounting.
Quick checklist
This Ø25 mm bore cylinder features a 1/8" air port and an M10x1.25 male rod thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum force of 50 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG or EMSG switches. You must choose the -S variant to enable magnetic sensing. It uses fixed TPU bumper pads for deceleration and features a rear CM round end cover for straightforward mounting.
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