Airtac MI25~40 Stainless Steel Mini Cylinder MI32X45SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X45SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 45mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke45 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 MI32X45SU
Generating 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavier automation tasks with a 45 mm stroke. The stainless-steel barrel and rod shrug off mild corrosion, making it superior to painted alternatives in damp environments. Its riveted construction keeps the body compact while fixed TPU bumper pads absorb the impact at stroke extremes. The built-in magnet (-S) supports CMSG, DMSG and EMSG switches for position detection.
For practical sizing, plan for a safe working load of roughly 241 N, which is about 60 percent of the 0.5 MPa rating. In a vertical lift scenario, this translates to raising around 20.5 kg with a two-to-one safety margin. The 1/8" port supplies ample air volume, and the U-style rear cover provides a 90-degree mounting interface to fit tight machinery frames.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X45SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X45SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 45 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 MI32X45SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×45 | 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 MI32X45SU Is Used
Package Diverting Gate
Actuates a heavy routing flap on a logistics conveyor, using the 402.2 N push force to redirect cartons weighing up to 20 kg onto secondary belts.
Clamp Press Assembly
Secures wooden housing panels during a stapling operation, where the 45 mm stroke delivers rapid clamping and the U cover allows flush wall mounting.
Textile Loom Tensioner
Maintains precise tension on heavy fabric rolls in humid dye-house conditions, relying on the stainless rod to prevent mild corrosion.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X45SU the Right Cylinder?
When sizing this 32 mm bore, stepping down to a 25 mm cylinder drops the 0.5 MPa push force to 245.3 N, whereas moving up to a 40 mm bore increases it to 628.3 N. The short 45 mm stroke keeps the rod highly resistant to bending under side loads. Because the U cover orients the rear port at 90 degrees, ensure your tubing layout clears adjacent mechanisms. This SKU includes the -S magnet for direct sensor mounting.
Remember that venting the air supply or centering the directional valve will cause the piston to drift; the TPU bumpers only decelerate the end of travel and do not function as a brake. If your application requires the rod to stay firmly in place during a pressure loss, integrate an external pilot-operated check valve or a dedicated rod lock.
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 MI32X45SU FAQ
At 0.5 MPa it pushes with 402.2 N and pulls with 345.6 N. At 0.7 MPa the push is 563 N and the pull is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. This 32 mm bore unit uses a 1/8" air port.
Yes, the -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG and EMSG reed or electronic switches. The U back cover provides a 90-degree mounting orientation, which helps route tubing neatly in confined spaces.
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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