Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 450mm 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
- Stroke450 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 MI25X450SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 450 mm stroke with ease. The Ø25 bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for straightforward design integration. Its stainless barrel and piston rod resist mild corrosion, giving it a real edge over painted-steel or aluminium alternatives in damp or washdown environments.
Equipped with a built-in piston magnet (-S), the unit supports CMSG, DMSG and EMSG reed or electronic switches for position sensing. The rear U cover provides a 90-degree port orientation for tight spatial constraints. For practical sizing, plan for about 147 N of real work at 0.5 MPa, which means it can safely lift a 12.5 kg part vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 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 MI25X450SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×450 | 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 MI25X450SU Is Used
Carton Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N thrust to push heavy cardboard cartons onto a secondary belt at high speed.
Vertical Parts Elevator
Lifts small metal fixtures weighing up to 12.5 kg through a 450 mm vertical path, relying on the stainless build to resist shop-floor humidity.
Pallet Tag Applicator
Extends to press identification labels onto pallets, using the 90-degree U cover to fit within a compact end-of-line packaging cell.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SU the Right Cylinder?
When sizing this 450 mm stroke model, compare it against its neighbours: a Ø20 bore yields 157.0 N push at 0.5 MPa, while stepping up to a Ø32 bore provides 402.2 N. This Ø25 unit offers a strong middle ground with its 245.3 N output. Because the 450 mm stroke is quite long, be cautious of side loads and rod bending—ensure the load is guided to prevent premature seal wear. The fixed TPU bumper pads decelerate the piston at the stroke ends but do not act as an adjustable air cushion.
Remember that a standard double-acting cylinder drifts when air is lost or the valve is centred; the bumpers only soften the end-of-stroke impact and will not lock the load. For holding a vertical position securely, add an external rod lock or a pilot-operated check valve. The 1/8" port and M10x1.25 male rod thread are fixed by the bore size, and the included magnet allows seamless sensor integration.
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 MI25X450SU FAQ
This Ø25 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, increasing to 343.4 N push and 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston near the stroke end and do not function as a brake. If air is lost, the piston will drift. To maintain a vertical position, you must use an external rod lock or a pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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