Airtac MI25~40 Stainless Steel Mini Cylinder MI32X425SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X425SCM is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 425mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke425 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 MI32X425SCM
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles substantial workloads within a compact footprint. The stainless-steel barrel and piston rod resist mild corrosion, making it highly suitable for damp environments or washdown zones where painted steel fails. Riveted construction keeps the body light, while fixed TPU bumper pads absorb impact energy at the stroke extremes.
Equipped with a built-in piston magnet (-S), the unit supports CMSG, DMSG and EMSG switches for precise position sensing. The CM round end provides a clean rear cover profile for straightforward mounting. Plan for a safe working load of roughly 241 N, which translates to lifting about 20.5 kg vertically with a 2:1 safety margin. Air enters via a 1/8" port, driving the 12 mm rod smoothly across its 425 mm travel.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X425SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X425SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 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. Note: the Ø32 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MI32X425SCM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 MI32X425SCM Is Used
Packaging Line Diverter
Pushes heavy cartons across a transfer belt with 402.2 N of thrust, utilizing the 425 mm stroke to clear wide conveyor lanes efficiently.
Food Processing Lid Press
Secures and lightly presses container lids in a damp washdown area, leveraging the stainless-steel construction to prevent corrosion.
Palletized Component Ejector
Ejects completed subassemblies from a machining fixture, using the position-sensing magnet to trigger the next robotic pickup.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X425SCM the Right Cylinder?
Choosing this Ø32 bore makes sense when a smaller Ø25 unit (providing 245.3 N push at 0.5 MPa) lacks the necessary thrust, but you want to avoid stepping up to the larger Ø40 size (628.3 N push). Because the 425 mm stroke is quite long for this bore size, carefully manage side loads to prevent rod bending and premature seal wear. The built-in magnet (-S) is essential if your control system requires CMSG, DMSG or EMSG electronic or reed switches for end-of-stroke confirmation.
Remember that the fixed TPU bumpers only decelerate the piston near the end of travel; they do not act as a brake. If your application must hold a vertical load when air pressure drops or the valve is centered, you must add an external rod lock or a pilot-operated check valve to prevent drifting. The CM round end cover dictates the rear mounting orientation, so verify your bracketry matches this specific back-cover style.
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 MI32X425SCM FAQ
At 0.5 MPa this double-acting cylinder provides 402.2 N of push force and 345.6 N of pull force. At 0.7 MPa, push increases to 563 N and pull to 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. It uses a 1/8" air port and a 12 mm piston rod with an M10x1.25 male thread.
No, the fixed TPU bumper pads only decelerate the piston at the stroke end and do not function as a locking brake. If air is lost or the valve is centered, the piston will drift. To maintain a vertical position, you must install 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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