Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 25mm 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
- Stroke25 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 MI25X25SU
Generating 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust short-stroke tasks. The Ø25 bore uses a 1/8" port and an M10x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it an edge over painted alternatives in damp or washdown settings. Riveted construction keeps the frame compact, while fixed TPU bumper pads absorb impact at the stroke ends.
With a 25 mm stroke, plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin. This translates to lifting about 12.5 kg vertically, letting you match real part weights accurately. The built-in magnet supports CMSG, DMSG, and EMSG switches, and the U-type back cover provides a 90-degree port orientation for tight layouts.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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 MI25X25SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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 MI25X25SU Is Used
Short-Stroke Clamping
Secures aluminium extrusions on a machining fixture using 245.3 N of push force over a rapid 25 mm travel distance.
Flap Folding
Actuates carton side flaps on a packaging line, where the stainless steel withstands occasional washdowns and the U cover eases hose routing.
Part Diverter
Pushes lightweight metal parts off a conveyor belt, utilizing the CMSG sensor signal to confirm the 12.5 kg capacity diversion stroke.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SU the Right Cylinder?
For lighter duty, the Ø20 bore provides 157 N of push at 0.5 MPa; if you need more power, the Ø32 bore offers 402 N. This SKU includes the -S magnet for position sensing and the U back cover for 90-degree mounting. Remember that air pressure alone does not secure the piston if the valve is centred or air is lost—the rod will drift. To prevent dropping a suspended 12.5 kg load, add an external rod lock or a pilot-operated check valve. The short 25 mm stroke minimizes rod-bending side loads, making it highly stable for fast clamping.
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 MI25X25SU FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. It uses a 1/8" air port and a Ø10 mm piston rod.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. For vertical loads, you must use an external rod lock or pilot check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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