Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125R is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 125mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke125 mm
- Port size1/4"
- 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 MI32X125R
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavier automation tasks with a 125 mm stroke. The stainless-steel barrel and Ø12 mm rod resist mild corrosion and washdown, making it highly suitable for damp processing areas. Fixed TPU bumper pads absorb the impact at stroke ends, decelerating the motion smoothly without the complexity of adjustable cushions. Air routes through a 1/4 inch port, and the rear cover features an R-style axial-in port orientation for compact plumbing.
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 vertical lift scenarios, this equates to lifting around 20.5 kg with a 2:1 safety margin. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches; you would need the -S variant for electronic sensing.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125R |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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 MI32X125R
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 MI32X125R Is Used
Package Diverting Gate
Actuates a heavy routing flap on a packaging conveyor, utilizing the 402.2 N push force to redirect filled cartons smoothly at high cycling speeds.
Stamping Press Ejector
Kicks small stamped metal parts out of a die bed using the 125 mm stroke, where the stainless construction resists residual cutting fluids and mist.
Pallet Stopper Arm
Deploys a robust stop block to halt incoming pallets on a roller conveyor, relying on the fixed TPU bumpers to absorb the repetitive impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125R the Right Cylinder?
When sizing this 32 mm bore, compare it directly to its neighbors: the Ø25 bore provides 245.3 N of push force at 0.5 MPa, while the larger Ø40 bore steps up significantly to 628.3 N. Choose this model when your application demands that middle-ground thrust. Keep in mind that a plain double-acting cylinder drifts if air pressure drops or the valve is centered, as the TPU pads only soften the end of stroke rather than locking the load; add an external rod lock or pilot check valve if you need strict position holding. The 125 mm stroke is well within the 500 mm maximum standard stroke, keeping the unit as a readily available configuration.
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 MI32X125R FAQ
This 32 mm bore cylinder features a 1/4 inch air port and generates 402.2 N push and 345.6 N pull at 0.5 MPa. At 0.7 MPa, the push increases to 563 N and pull to 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so CMSG, DMSG, or EMSG switches cannot be used. You must select the -S variant of this round-body mini cylinder to enable electronic position sensing.
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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.
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Most inquiries answered within 7-8 hours.
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