Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120CM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120CM is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 120mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke120 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 MI32X120CM
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles substantial workloads in compact spaces. The stainless-steel barrel and piston rod provide reliable mild corrosion resistance, making it well-suited for damp or washdown environments where painted alternatives fail. It features a CM round end rear cover and a 1/4" air port.
Built with fixed TPU bumper pads to decelerate the stroke end, the riveted construction keeps the unit compact and light. 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. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120CM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120CM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 MI32X120CM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 MI32X120CM Is Used
Package Diverter Gate
Actuates heavy sorting flaps on logistics lines, using its 402.2 N push force to reliably redirect parcels even under continuous vibration.
Stamping Pin Press
Drives a small marking pin into aluminum extrusions, where the fixed TPU bumper pads absorb the repetitive end-of-stroke impact.
Lab Sample Ejector
Pushes processed test trays out of a humid chamber, relying on the stainless steel rod to resist mild corrosion from frequent washdowns.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120CM the Right Cylinder?
When sizing this 32 mm bore, the smaller Ø25 generates 245.3 N of push at 0.5 MPa, while the larger Ø40 provides 628.3 N. Choose this model when the 25 mm falls short but you want to avoid the bulk of a 40 mm body. If your mechanism requires position feedback, you must select the -S magnet variant instead of this base model, as standard switches will not function here.
The 120 mm stroke is well within the 500 mm maximum standard stroke, keeping the assembly stable. However, at this length, minimize side loads to prevent rod bending. Remember that venting the air or centering the valve causes the piston to drift; the bumpers only soften the impact and do not lock the load. Use an external rod lock or pilot check valve for secure holding.
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 MI32X120CM FAQ
This 32 mm bore cylinder features a 1/4" air port. 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 pull is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, the Ø32 bore exceeds the ISO 6432 standard size range, so it is simply a round-body mini cylinder. You should use the specific LB foot, FA flange, SDB pivot, or TC trunnion mounts designed for this 32 mm body, along with the CM round end rear cover.
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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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Most inquiries answered within 7-8 hours.
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