Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150U
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150U is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 150mm 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
- Stroke150 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 MI8X150U
Delivering 25.1 N of push force at 0.5 MPa, the AirTAC MI8X150U is a compact double-acting round-body mini cylinder built for tight spaces. Its stainless-steel barrel and rod shrug off mild corrosion, making it superior to painted alternatives in damp or washdown-prone environments. The riveted construction keeps the unit light, while fixed TPU bumper pads absorb impact at the stroke ends.
This specific configuration features a 90-degree U back cover and an M5x0.8 port. Because it lacks the -S suffix, it has no internal magnet and cannot host CMSG, DMSG or EMSG reed switches. Plan for roughly 15 N of actual work at 0.5 MPa, which means it lifts about 1.3 kg vertically with a 2:1 safety margin.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150U Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 150 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 MI8X150U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×150 | 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 MI8X150U Is Used
Micro Dispenser Actuation
Drives a tiny dosing valve for adhesive application, utilizing the 1.3 kg vertical lift capacity to meter precise fluid drops without stressing the mechanism.
Lightweight Part Ejection
Pushes delicate plastic components out of an injection mould tool, where the 25.1 N push force is sufficient to clear the cavity gently.
Lab Sample Diverting
Pivots a small guide chute on a diagnostic analyser using its 90-degree U back cover, routing test tubes to the correct testing lane in damp lab conditions.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150U the Right Cylinder?
Choosing this 8 mm bore makes sense when your application demands very low force and a long 150 mm extension. If you need more push, the next size up is the 12 mm bore, which provides 56.5 N at 0.5 MPa; there is no smaller standard AirTAC MI bore below 8 mm. The maximum standard stroke for this size is exactly 150 mm, so this model sits right at the limit of the catalogue range.
Remember that the fixed TPU bumpers only soften the end-of-stroke impact and do not function as a brake. If your equipment loses air pressure or the valve is centred, the piston will drift, so fit an external rod lock or pilot check valve to hold a suspended load. To add position sensing, you must switch to the -S magnet variant.
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 MI8X150U FAQ
This 8 mm bore cylinder features an M5x0.8 port. It generates a push force of 25.1 N and a pull force of 18.8 N at 0.5 MPa. At 0.7 MPa, the push increases to 35.2 N and the pull to 26.4 N. The theoretical maximum force is 5.1 kgf at 1.0 MPa.
No, because this specific SKU lacks the -S suffix, it has no internal magnet and cannot accommodate CMSG, DMSG or EMSG switches. You would need to select the -S variant for position sensing. It uses the ISO 6432 mounting interface for standard brackets.
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