Airtac MI25~40 Stainless Steel Mini Cylinder MI25X10SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X10SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 10mm 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.
- BoreØ25 mm
- Stroke10 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X10SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 10 mm strokes with precision. The riveted construction and 1/8" port keep the frame compact while resisting mild corrosion in damp environments. Because the bore is Ø25, it conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for easy design integration.
The built-in -S piston magnet enables CMSG, DMSG or EMSG switches for position sensing, while fixed TPU bumper pads decelerate the stroke-end impact. Plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin. This equates to lifting about 12.5 kg vertically, letting you match real part weights accurately. The U back cover provides a 90-degree port and mounting orientation for tight spaces.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X10SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X10SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 10 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.
Theoretical Output Force (Ø25mm)
| 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.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI25X10SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×10 | 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 MI25X10SU Is Used
Short-Stroke Clamping
Ideal for locking small aluminium extrusions in CNC machining fixtures, using the 245.3 N push force to secure parts firmly without overcomplicating the tooling.
Flap Deflection
Provides a rapid 10 mm push to guide cardboard flaps on high-speed packaging lines, where the stainless body withstands occasional washdowns.
Ejector Pins
Suits small ejection gates in plastic moulding trim stations, using the 90-degree U cover to fit neatly within confined machine frames.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X10SU the Right Cylinder?
For lower force needs, the Ø20 bore provides 157.0 N of push at 0.5 MPa, whereas stepping up to the Ø32 yields 402.2 N if your application requires more power. The U-type rear cover suits 90-degree mounting setups, and the -S magnet supports electronic or reed sensors. Note that a plain double-acting cylinder drifts if air pressure is lost or the valve is centred; the bumpers only soften the end of stroke and do not act as a brake. To suspend a load safely, add an external rod lock or a pilot-operated check valve. Even with a short 10 mm stroke, verify side loading to avoid bending the Ø10 mm piston rod.
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 MI25X10SU FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port size is 1/8 inch.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. It does not have an adjustable air cushion; instead, fixed TPU bumper pads decelerate the piston at the stroke ends. The Ø25 bore also matches ISO 6432 mounting dimensions.
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