Airtac MI25~40 Stainless Steel Mini Cylinder MI25X30SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X30SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 30mm 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
- Stroke30 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 MI25X30SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust actuation in tight spaces. The Ø25 mm bore uses a 1/8" port and a 30 mm stroke, making it highly effective for short, powerful movements. Its stainless barrel and piston rod resist mild corrosion, outperforming painted alternatives in damp or washdown settings. Riveted construction keeps the body compact, while fixed TPU bumper pads absorb the impact at stroke extremes.
Equipped with a built-in magnet (-S), the unit supports CMSG, DMSG and EMSG sensors for position detection. A practical takeaway: it lifts about 12.5 kg vertically with a 2:1 safety margin, leaving roughly 147 N of usable working force. The U-style rear cover provides a 90-degree mounting orientation, and the ISO 6432 mounting interface ensures compatibility with standard mini-cylinder brackets.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X30SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X30SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 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 MI25X30SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×30 | 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 MI25X30SU Is Used
Package Diverter Arm
Snaps a 30 mm diverter gate into place on a packaging line, utilizing the 245.3 N push force to redirect heavy cartons without hesitation.
Pneumatic Valve Actuation
Cycles a process valve in damp environments, relying on the stainless-steel rod and barrel to withstand mild corrosion and washdown spray.
Parts Ejector Station
Pushes finished metal components out of a machining fixture, lifting parts up to 12.5 kg vertically before retracting to clear the work area.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X30SU the Right Cylinder?
When sizing this actuator, note the Ø20 bore below provides 157.0 N of push at 0.5 MPa, whereas the larger Ø32 offers 402.2 N. If your application loses air pressure or the valve centres, the piston will drift; the TPU pads only decelerate the end of travel and do not function as a locking brake. To suspend a load securely, integrate an external rod lock or a pilot-operated check valve.
The 30 mm stroke minimizes rod-bending side-load risks compared to longer movements. Position sensing requires the included -S magnet to trigger CMSG, DMSG or EMSG switches. You can pair the U back cover with LB foot, FA flange, SDB pivot or TC trunnion hardware to suit your frame.
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 MI25X30SU FAQ
The 1/8" ported Ø25 mm bore generates 245.3 N push and 206.1 N pull at 0.5 MPa. At 0.7 MPa, push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
Yes, the -S designation means it has a piston magnet for CMSG, DMSG and EMSG switches. The U back cover provides a 90-degree mounting interface, and the body conforms to ISO 6432 mini-cylinder mounting dimensions for standard brackets.
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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