Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 20mm stroke, M5×0.8 air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ8 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM4×0.7
- CushionFixed TPU bumper pads
About the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC
Delivering 25.1 N of push force at 0.5 MPa, this compact 8 mm bore actuator is built for light-duty automation. The stainless-steel barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Its riveted round body keeps the footprint minimal while fixed TPU bumper pads soften the impact at stroke extremes.
Equipped with a piston magnet, this unit supports CMSG, DMSG and EMSG sensors for position confirmation. With a 25.1 N push rating, plan for about 15 N of actual work at 0.5 MPa. This translates to lifting roughly 1.3 kg vertically with a safe 2:1 margin, making it easy to match to real part weights. It features an M5x0.8 port and an M4x0.7 male rod thread.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 150 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø8mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 25 N | 19 N |
| 0.7 MPa | 35 N | 26 N |
| Max (@1.0 MPa) | 5 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×20 | 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 MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC Is Used
Micro-Clamp Actuation
Drives small pneumatic clamps in PCB assembly fixtures, providing the 15 N working force needed to hold delicate electronic components without crushing them.
Light-Diverter Gate
Pivots a lightweight routing flap on a packaging conveyor to sort small plastic bottles, utilising the TC trunnion mount for smooth pivot action.
Lab Sample Ejection
Pushes processed test tubes out of a centrifuge carousel, where the stainless construction resists humidity and the 1.3 kg vertical lift capacity handles light racks.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC the Right Cylinder?
When sizing this 8 mm bore, stepping up to the Ø10 model increases push force to 39.3 N at 0.5 MPa, while 8 mm is the smallest available option in the MI family. This SKU includes a U-type 90-degree back cover and a TC trunnion mount, offering versatile pivot options. The built-in magnet allows seamless integration with CMSG, DMSG or EMSG switches.
Because it is a standard double-acting cylinder, the piston will drift if air pressure drops or the valve is centred. The TPU bumpers only decelerate the end-of-stroke impact and do not function as a locking mechanism. To suspend a load safely during an air loss event, 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 MI8~12 Stainless Steel Mini Cylinder MI8X20SUTC FAQ
This 8 mm bore cylinder features an M5x0.8 port and an M4x0.7 male rod thread. It generates 25.1 N push and 18.8 N pull at 0.5 MPa, increasing to 35.2 N push and 26.4 N pull at 0.7 MPa. The theoretical maximum force is 5.1 kgf at 1.0 MPa.
Yes, the Ø8 bore adheres to ISO 6432 mounting dimensions, allowing it to drop into standard mini-cylinder brackets and clevises. The included -S magnet enables position sensing with CMSG, DMSG or EMSG switches, while fixed TPU bumpers absorb end-of-stroke impact.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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