Airtac MI25~40 Stainless Steel Mini Cylinder MI32X25SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X25SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 25mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke25 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 MI32X25SU
Generating 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles substantial actuation tasks within a compact footprint. The stainless-steel barrel and piston rod supply reliable mild-corrosion and washdown resistance, outperforming painted alternatives in damp environments. A built-in piston magnet (-S) enables direct mounting of CMSG, DMSG or EMSG switches for position sensing.
With its 90-degree U back cover, the 1/8 inch port orientation simplifies plumbing in tight machinery spaces. The riveted construction incorporates fixed TPU bumper pads that decelerate the piston at stroke end, reducing impact wear. For practical sizing, 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.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X25SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X25SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 MI32X25SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 MI32X25SU Is Used
Heavy-Duty Stamping Press
Provides the 402.2 N push force required to drive short-stroke stamping and marking dies in automated metal fabrication lines.
Package Divert Gate
Actuates a robust routing flap on a high-speed logistics conveyor, easily handling the 20.5 kg vertical lift equivalent to pivot heavy assemblies.
Pallet Stopper Block
Deploys a heavy physical stop to arrest pallets on a roller bed, utilizing the 90-degree U back cover for streamlined side-port plumbing.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X25SU the Right Cylinder?
When sizing this 32 mm bore, the smaller Ø25 generates 245.3 N push while the larger Ø40 yields 628.3 N at 0.5 MPa, giving you clear scaling boundaries. This short 25 mm stroke minimizes rod-bending side-load risks, making it ideal for high-force clamping over tiny distances. The included magnet supports electronic or reed sensors, and you can utilize LB foot, FA flange, SDB pivot, or TC trunnion mounts.
Remember that the TPU bumpers only soften the end-of-stroke impact; they do not function as a brake. If air pressure drops or the valve centers, the piston will drift, so fit an external rod lock or pilot-operated check valve to safely suspend any vertical load.
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 MI32X25SU FAQ
This 32 mm bore cylinder features a 1/8 inch port and a Ø12 mm rod. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the stroke end and act as neither a brake nor a lock. Because the piston drifts when air is lost or the valve is centered, you must use an external rod lock or pilot check valve to hold a vertical load.
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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