Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 300mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke300 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 MI32X300SU
Generating 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles substantial workloads within a compact footprint. The stainless-steel barrel and piston rod supply reliable mild-corrosion and washdown resistance, outperforming painted alternatives in damp environments. Because the bore exceeds Ø25, it is a non-ISO-6432 round-body unit rather than a standard mini interface. The U back cover provides a 90-degree port orientation for tight machinery layouts.
For practical sizing, plan for roughly 241 N of actual work at 0.5 MPa, or vertically lifting about 20.5 kg with a 2:1 safety margin. Fixed TPU bumper pads absorb stroke-end impacts to protect the mechanism. Equipped with a built-in magnet (-S), the unit supports CMSG, DMSG, and EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 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 MI32X300SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 MI32X300SU Is Used
Package Diverting
Pushes medium-weight cartons off a sorting line using 402.2 N of thrust at 0.5 MPa, handling loads up to 20.5 kg vertically.
Textile Loom Tensioning
Maintains consistent fabric tension via the 90-degree U back cover, utilizing the 300 mm stroke to adjust guide rollers.
Pallet Stop Gate
Acts as a heavy-duty pneumatic stop gate for pallets, relying on the stainless steel construction to endure humid dock environments.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SU the Right Cylinder?
When sizing this 32 mm bore, compare it against adjacent models: the Ø25 delivers 245.3 N push, while the larger Ø40 provides 628.3 N at 0.5 MPa. The 300 mm stroke is well within the 500 mm maximum standard stroke, keeping the unit as a readily available configuration. With a longer rod extension, ensure your mounting setup—such as LB foot, FA flange, or TC trunnion—prevents excessive side loading to avoid rod bending.
Remember that the fixed TPU bumpers only decelerate the piston near the stroke end; they do not function as a braking mechanism. If air pressure drops or the valve is centered, the rod will drift. To maintain a vertical load safely, integrate an external rod lock or 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 MI32X300SU FAQ
This 32 mm bore cylinder features a 1/4" port and a M10x1.25 male rod thread. 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.
Yes to sensors, no to adjustable cushions. The -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. For cushioning, it relies on fixed TPU bumper pads; if you need adjustable air cushioning, look at the MIC variant.
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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