Airtac MI25~40 Stainless Steel Mini Cylinder MI32X20SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X20SCM is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 20mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke20 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 MI32X20SCM
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MI32X20SCM is a double-acting round-body mini cylinder built for compact automation. Its stainless-steel barrel and Ø12 mm rod shrug off mild corrosion, making it highly suitable for damp washdown environments where painted steel alternatives degrade. The riveted construction keeps the unit light, while fixed TPU bumper pads absorb the impact at stroke extremes to protect your tooling.
For practical sizing, plan for a safe working load of roughly 241 N rather than the absolute maximum rating. This translates to lifting a 20.5 kg part vertically with a sensible 2:1 safety margin. The built-in piston magnet allows seamless integration with CMSG, DMSG or EMSG switches for precise end-of-stroke detection, and the CM round end cover offers a clean, versatile rear mounting interface.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X20SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X20SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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 MI32X20SCM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 MI32X20SCM Is Used
Stamping Pin Ejection
Provides the 402.2 N push force needed to eject a small metal pin from a stamping die, with the 20 mm stroke delivering rapid retraction for high-cycle production.
Package Divert Arm
Actuates a short diverter arm on a packaging line, using the integrated magnet to confirm stroke position and the stainless body to resist humid factory conditions.
Pallet Stop Gate
Functions as a heavy-duty stop gate for lighter pallets, safely holding loads up to 20.5 kg vertically when paired with a pilot check valve to prevent drifting.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X20SCM the Right Cylinder?
When sizing this 32 mm bore, compare it directly against its neighbours: a 25 mm bore yields 245.3 N of push at 0.5 MPa, whereas stepping up to the 40 mm bore provides 628.3 N. The 1/8" port matches the air volume required for this larger bore size to maintain smooth operation across the 30-800 mm/s speed range. With a short 20 mm stroke, side-load stress on the rod is minimal, but always ensure the load is axially aligned to prevent premature seal wear.
Remember that a standard double-acting cylinder like this relies entirely on continuous air pressure to maintain its position. If air is lost or the directional valve is centred, the piston will drift, as the TPU bumpers only decelerate the stroke end and act as neither a brake nor a lock. To suspend a load safely mid-cycle, fit an external rod lock or incorporate a pilot-operated check valve into your pneumatic circuit.
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 MI32X20SCM FAQ
This double-acting cylinder features a 1/8" air port and an M10x1.25 male rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, increasing to 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston near the stroke end and do not function as a braking mechanism. If air pressure is lost, the piston will drift. An external rod lock or pilot-operated check valve is required to hold a suspended load safely.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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