Airtac MI25~40 Stainless Steel Mini Cylinder MI32X270SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X270SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 270mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke270 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 MI32X270SU
Delivering 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 settings. A 1/8" port feeds the 32 mm bore, while the U back cover provides a 90-degree port orientation for tight machinery layouts.
Because the fixed TPU bumper pads only decelerate the stroke end without acting as a lock, plan for roughly 241 N of actual work at 0.5 MPa to maintain a safe margin. This translates to lifting about 20.5 kg vertically with a 2:1 safety factor. The built-in magnet (-S) directly supports CMSG, DMSG and EMSG switches for precise position detection across the 270 mm travel.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X270SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X270SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 270 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 MI32X270SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×270 | 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 MI32X270SU Is Used
Package Diverting Gate
Actuates a heavy routing flap on a packaging conveyor, using the 402.2 N push force to redirect cartons reliably at high cycling speeds.
CNC Lathe Door Operation
Slides a heavy machine-tool safety enclosure open and closed, where the stainless build withstands cutting fluid splashes and the U cover eases hose routing.
Pallet Component Pusher
Sweeps heavier metal components off an assembly pallet, lifting or shifting loads approaching 20.5 kg with a safe vertical-lift margin.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X270SU the Right Cylinder?
When sizing this 32 mm bore, the smaller 25 mm option yields 245.3 N of push at 0.5 MPa, whereas stepping up to the 40 mm bore provides 628.3 N. The 270 mm stroke is well within the 500 mm maximum standard stroke, keeping the unit readily available. Be mindful that longer strokes increase susceptibility to side-loading and rod-bending, so ensure rigid guidance for your payload. If your mechanism must remain stationary during a loss of air pressure or valve centring, note that the piston will drift; integrate an external rod lock or pilot-operated check valve to secure the load. The U rear cover offers flexible 90-degree mounting, and you can utilise LB foot, FA flange, SDB pivot, or TC trunnion brackets to suit your frame.
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 MI32X270SU 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, 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 act as a brake. To hold a suspended load securely, you must fit an external rod lock or a pilot-operated check valve.
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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