Airtac MI25~40 Stainless Steel Mini Cylinder MI32X350U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X350U is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 350mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke350 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 MI32X350U
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty automation with ease. The stainless-steel barrel and Ø12 mm piston rod provide excellent mild corrosion and washdown resistance, outperforming painted alternatives in damp environments. A 1/4" port supplies the air volume needed for its larger bore.
The riveted construction keeps the unit compact, while fixed TPU bumper pads absorb impact energy at the stroke ends. 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. The U back cover provides a 90-degree port and mounting orientation for tight machinery layouts.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X350U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X350U |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 350 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 MI32X350U
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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 MI32X350U Is Used
Pallet Diverters
Pushes heavy pallets sideways on a packaging line using its 402.2 N thrust, while the stainless body withstands humid washdown environments.
Vertical Gate Lifting
Raises 20 kg access gates through the 350 mm stroke, relying on the 90-degree U cover to fit neatly within tight structural frames.
Press Ejection
Ejects dense formed parts from a press bed, using the fixed TPU bumpers to soften the mechanical impact at full extension.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X350U the Right Cylinder?
When sizing this 350 mm stroke model, consider the neighbouring bores: the Ø25 delivers 245.3 N push at 0.5 MPa, while the Ø40 provides 628.3 N, allowing you to scale precisely. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches; you must physically trigger external sensors or upgrade to a magnet-equipped variant. The 1/4" PT port (G optional) matches the bore's air flow requirements.
At a 350 mm extension, side loading becomes a critical factor—ensure your front mounting (LB foot, FA flange or TC trunnion) supports the rod adequately to prevent bending. Furthermore, the fixed TPU bumpers only decelerate the end-of-stroke impact; they do not act as a brake. If air pressure drops, the piston will drift, so install an external rod lock or pilot check valve to hold suspended loads safely.
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 MI32X350U FAQ
This 32 mm bore cylinder features a 1/4" port and a Ø12 mm rod with an M10x1.25 male 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 force of 82 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so CMSG, DMSG or EMSG switches will not function. You must select an -S variant for position sensing. Additionally, the fixed TPU bumpers only decelerate the stroke end; they will not hold a load if air pressure is lost.
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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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