Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SR 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 MI25X450SR
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles long 450 mm strokes with a 1/8" air port. The riveted stainless barrel and Ø10 mm rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. A built-in piston magnet (-S) supports CMSG, DMSG and EMSG switches for position detection.
Because the 245.3 N rating leaves little room for friction, plan for roughly 147 N of actual work at 0.5 MPa. That translates to lifting about 12.5 kg vertically with a sensible 2:1 safety margin. Fixed TPU bumper pads absorb the impact at stroke extremes, while the rear R cover features an axial-in port orientation to keep hose routing tidy in tight machinery.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SR |
|---|---|
| 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 MI25X450SR
| 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 MI25X450SR Is Used
Carton Push-off Diverter
Uses the 245.3 N thrust at 0.5 MPa to push heavy cardboard cartons cleanly across a 450 mm transfer gap onto a secondary packaging line.
Vertical Parts Elevator
Lifts approximately 12.5 kg tote bins up a 450 mm vertical rise, relying on the stainless build to endure humid warehouse environments.
Pneumatic Sorting Gate
Extends a 450 mm barrier to reroute metal stampings on a conveyor, using CMSG sensors to confirm gate position before parts arrive.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SR the Right Cylinder?
When sizing this 25 mm bore, the smaller Ø20 generates 157.0 N of push at 0.5 MPa, whereas stepping up to the non-ISO Ø32 yields 402.2 N. This model uses the ISO 6432 mounting interface, so it drops directly into standard mini-cylinder foot, flange, or trunnion brackets. For a 450 mm extension, mind the side-load risk; keep the rod guided to prevent bending.
Remember that venting the air or centering the valve causes the piston to drift, as the TPU pads only soften the end-of-stroke impact rather than locking the rod. To suspend a load safely mid-cycle, fit an external rod lock or a pilot-operated check valve.
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 MI25X450SR FAQ
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port is 1/8".
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. To hold a load, use an external rod lock or pilot check valve. The -S magnet allows position sensing.
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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