Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550CA
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550CA is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 550mm 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
- Stroke550 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 MI25X550CA
Generating 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles heavier actuation tasks. The 550 mm stroke is a non-standard, made-to-order length that exceeds the 500 mm maximum standard stroke for this Ø25 bore. Its stainless barrel and piston rod naturally shrug off mild corrosion, making it a durable alternative to painted alternatives in damp or washdown settings. Because the bore falls within the Ø8-Ø25 range, it uses the ISO 6432 mounting interface, sliding smoothly into standard mini-cylinder brackets and clevises.
For practical sizing, plan for roughly 147 N of real work at 0.5 MPa, which equates to lifting about 12.5 kg vertically with a safe 2:1 margin. The 1/8" air port feeds the chamber, while fixed TPU bumper pads absorb the impact at stroke extremes. This specific CA back cover configuration incorporates a rear pivot clevis for articulated mounting. Since this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550CA Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550CA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 550 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 MI25X550CA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×550 | 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 MI25X550CA Is Used
Diverting Heavy Cartons
Pushes heavy packaged goods between conveyor lanes using its 245.3 N push force, with the CA pivot clevis absorbing angular misalignment during the transfer.
Extended-Reach Flap Folding
The 550 mm non-standard stroke reaches across wide packaging machinery to fold large carton flaps, while the stainless rod withstands occasional washdown.
Textile Loom Tensioning
Maintains tension on fabric webs in humid textile manufacturing environments, leveraging the stainless steel construction to resist mild corrosion.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550CA the Right Cylinder?
When sizing this unit, compare it against its neighbours: a Ø20 bore generates 157.0 N of push at 0.5 MPa, while stepping up to a Ø32 bore yields 402.2 N. Choose this Ø25 model when you need its specific 245.3 N capacity. Because the 550 mm stroke is a non-standard made-to-order length, carefully account for rod-bending and side-load risks over that extended distance. The CA rear pivot cover requires a matching clevis bracket to function properly.
Remember that a standard double-acting cylinder drifts when air pressure drops or the valve is centred—the fixed TPU bumpers only soften the end-of-stroke impact and act purely as decelerators, never as a locking mechanism. If your mechanism must hold a vertical load safely during an air loss event, install an external rod lock or a pilot-operated check valve. To add position sensing, you must switch to the -S magnet variant.
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 MI25X550CA 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 size is 1/8" and the male rod thread is M10x1.25.
Yes, the Ø25 bore uses the ISO 6432 mounting interface, so it drops into standard mini-cylinder clevises and brackets. However, this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG switches; you would need the -S variant for sensing.
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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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