Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 250mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke250 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 MI32X250SU
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MI32X250SU is a robust double-acting round-body mini cylinder built for demanding 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 quickly degrade. The riveted construction maintains a compact profile while housing fixed TPU bumper pads to absorb end-of-stroke impacts.
Equipped with a built-in piston magnet (-S), this unit supports CMSG, DMSG, and EMSG position switches for precise electronic tracking. The 1/8" port feeds the 32 mm bore efficiently across its 250 mm travel. 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. The U back cover provides a 90-degree port orientation to simplify plumbing in tight machinery layouts.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 MI32X250SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 MI32X250SU Is Used
Package Diverting
Actuates heavy-duty routing gates on high-speed parcel conveyors, utilizing the 402.2 N push force to reliably pivot fully loaded pallets.
Vertical Material Lift
Raises tote bins in compact storage retrieval systems, safely lifting components up to 20.5 kg through the 250 mm stroke.
Carton Sealing Press
Drives the upper sealing head on automated box taping machinery, where the stainless build resists adhesive overspray and washdown.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SU the Right Cylinder?
When sizing this 32 mm bore, compare your actual load against its 402.2 N push and 345.6 N pull capabilities at 0.5 MPa. If your application requires less force, stepping down to the 25 mm bore yields 245.3 N of push, while moving up to the 40 mm bore provides 628.3 N for heavier demands. The 250 mm stroke is well within the 500 mm maximum standard stroke, keeping the unit readily available without special ordering.
Remember that the fixed TPU bumpers only decelerate the piston near the stroke end; they do not function as an adjustable air cushion. Furthermore, a standard double-acting cylinder will drift if air pressure is lost or the valve is centered. To prevent a suspended 20 kg load from dropping, you must 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 MI32X250SU FAQ
This 32 mm bore cylinder features a 1/8" air port and generates 402.2 N push and 345.6 N pull at 0.5 MPa. At 0.7 MPa, the forces increase to 563 N push and 483.8 N pull. The theoretical maximum force is 82 kgf at 1.0 MPa.
The -S suffix indicates a built-in magnet, allowing you to mount CMSG, DMSG, or EMSG electronic switches along the body. However, it uses fixed TPU bumper pads for end-of-stroke deceleration, not an adjustable air cushion; for variable 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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