Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 175mm 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
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SU
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 operates on a 1/8" port, and the 175 mm stroke falls well within the 500 mm standard limit. Its riveted stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Because the bore is Ø25, it uses the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets and clevises.
The U-type back cover provides a 90-degree port orientation for tight machinery layouts. Plan for roughly 147 N of actual work at 0.5 MPa, which means it lifts about 12.5 kg vertically with a safe 2:1 margin. Fixed TPU bumper pads absorb the end-of-stroke impact. This SKU includes the -S magnet, so you can mount CMSG, DMSG or EMSG switches for position sensing.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 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.
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 MI25X175SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | 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.
Where the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N thrust to push parcels smoothly onto secondary chutes.
Parts Press Insertion
Presses small bearings into housings on an assembly fixture, relying on the 175 mm stroke to reach deep into the work area.
Lab Sample Elevation
Raises fluid test racks out of a washdown bath, where the stainless rod resists mild chemical corrosion during repeated cycles.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SU the Right Cylinder?
When sizing this 245.3 N (0.5 MPa) unit, dropping down to a Ø20 bore reduces thrust to 157.0 N, while stepping up to a Ø32 bore yields 402.2 N. The 175 mm stroke is standard, but long rods invite side-load bending, so ensure your load is guided to prevent premature seal wear. The U back cover dictates a 90-degree rear port orientation.
Remember that venting or losing air pressure lets the piston drift, as the TPU pads only decelerate the stroke end rather than locking the rod. For suspended loads, install an external rod lock or a pilot-operated check valve. You can mount this unit via LB foot, FA flange, SDB pivot or TC trunnion hardware.
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 MI25X175SU 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 the pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port size is 1/8".
Yes, the -S suffix means it has a built-in piston magnet for CMSG, DMSG or EMSG switches. It does not hold position on air loss; the piston drifts, and the fixed TPU bumpers only decelerate the stroke end. Use a pilot check valve for load holding.
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1-Year Warranty
Covers non-human-caused product damage.
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