Airtac MI25~40 Stainless Steel Mini Cylinder MI32X230SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X230SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 230mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke230 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 MI32X230SU
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavier automation tasks with ease. The stainless-steel barrel and piston rod resist mild corrosion and washdowns, outperforming painted alternatives in damp environments. A 1/8" port supplies the 12 mm rod, while the built-in magnet (-S) supports CMSG, DMSG and EMSG sensors for position detection.
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-type back cover provides a 90-degree port orientation for tight layouts. Fixed TPU bumper pads absorb stroke-end impacts, and the 230 mm stroke falls well within the 500 mm maximum for this bore.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X230SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X230SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 230 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 MI32X230SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×230 | 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 MI32X230SU Is Used
Package Diverting
Actuates routing gates on medium-duty packaging conveyors, using its 402.2 N push force to swing heavy cardboard cartons onto secondary lines.
Pallet Handling
Extends 230 mm to push tote bins or lightweight pallets into staging zones, benefiting from the stainless rod in humid warehouse coolers.
Clamp Actuation
Drives mid-sized machining clamps holding aluminum castings, relying on the U-type back cover for compact 90-degree port routing.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X230SU the Right Cylinder?
When sizing this 32 mm bore, the smaller 25 mm option provides 245.3 N of push at 0.5 MPa, whereas stepping up to the 40 mm bore yields 628.3 N. This model hits a strong middle ground for medium-force tasks. Because the 230 mm stroke is relatively long, minimize side-loading to prevent rod bending and premature seal wear.
The integrated piston magnet allows seamless CMSG, DMSG or EMSG switch mounting. Remember that air pressure alone cannot secure a load; if the valve is centered or air is lost, the piston will drift. For vertical or suspended loads, install an external rod lock or a pilot-operated check valve.
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 MI32X230SU FAQ
This 32 mm bore cylinder features a 1/8" port and a 12 mm rod. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, or 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 centered. The fixed TPU bumper pads only decelerate the stroke end; they do not act as a brake. You must use an external rod lock or pilot check valve to hold suspended loads.
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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