Airtac MI25~40 Stainless Steel Mini Cylinder MI32X450SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X450SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 450mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke450 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 MI32X450SU
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MI32X450SU is a robust double-acting round-body mini cylinder built for demanding linear motion. Its stainless-steel barrel and Ø12 mm piston rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown-heavy settings. The 1/8" port feeds the bore efficiently, while the integrated piston magnet (-S) enables direct mounting of CMSG, DMSG or EMSG electronic switches.
At 450 mm of travel, the riveted construction remains compact, relying on fixed TPU bumper pads to decelerate the piston at stroke end. For practical sizing, plan for a safe working load of roughly 241 N, which means this actuator lifts about 20.5 kg vertically with a 2:1 safety margin. The U-style rear cover provides a 90-degree port orientation for tight machinery layouts.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X450SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X450SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 450 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 MI32X450SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×450 | 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 MI32X450SU Is Used
Diverting Heavy Packages
Provides the 402.2 N push force needed to actuate a heavy-duty diverter arm on a packaging conveyor, shifting loaded cartons efficiently.
Vertical Press Ejection
Uses the 450 mm stroke to eject moulded plastic parts from a vertical press, safely lifting parts weighing up to 20.5 kg.
Washdown Gate Control
Operates an automated routing gate in a food processing line, where the stainless steel construction withstands frequent washdowns.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X450SU the Right Cylinder?
When sizing this 32 mm bore, compare it against its neighbours: a 25 mm bore yields 245.3 N of push at 0.5 MPa, whereas stepping up to a 40 mm bore provides 628.3 N. Choose the 32 mm option when you need that middle-ground thrust. Because this SKU features the -S magnet, it is fully compatible with CMSG, DMSG and EMSG sensors for position detection.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only soften the end-of-stroke impact and act as neither a brake nor a position lock. To suspend a load safely during an air loss event, install an external rod lock or a pilot-operated check valve. Furthermore, at 450 mm of extension, minimize side-loading to prevent rod bending and premature seal wear.
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 MI32X450SU FAQ
This 32 mm bore cylinder features a 1/8" air port and a male M10x1.25 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 piston will drift if air is lost or the valve is centred; the fixed TPU bumper pads only decelerate the stroke end and do not function as a brake. To hold a vertical load, you must add an external rod lock or pilot check valve. Additionally, there is no adjustable air cushion, as this is a feature of the MIC variant.
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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.
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Most inquiries answered within 7-8 hours.
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