Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCA
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCA is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 25mm 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
- Stroke25 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 MI8X25SCA
Delivering 25.1 N of push force at 0.5 MPa, this compact 8 mm bore actuator handles light-duty positioning with ease. The stainless-steel barrel and rod shrug off mild corrosion, making it superior to painted alternatives in damp environments. Its riveted round-body construction keeps the assembly lightweight, while fixed TPU bumper pads absorb impact at the stroke ends.
Because this SKU includes the -S magnet, you can mount CMSG, DMSG or EMSG switches for electronic position sensing. The built-in CA pivot/clevis back cover simplifies angular mounting, and the M5x0.8 port matches standard miniature pneumatic fittings. For practical sizing, plan for roughly 15 N of usable work at 0.5 MPa, which translates to lifting about 1.3 kg vertically with a 2:1 safety margin.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCA Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 25 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 MI8X25SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×25 | 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 MI8X25SCA Is Used
Micro-Clamp Actuation
Drives small delicate clamps in PCB assembly stations, providing 25.1 N of push force without damaging fragile electronic components.
Lab Dispenser Routing
Pivots fluid nozzle brackets on diagnostic equipment, utilizing the CA clevis mount and stainless build to withstand chemical washdowns.
Small Part Ejection
Pushes lightweight plastic moulded parts out of a machining zone, using the integrated magnet to confirm ejection via a DMSG sensor.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCA the Right Cylinder?
When sizing this 8 mm unit, the next step up is the 10 mm bore, which raises push force to 39.3 N at 0.5 MPa if your load exceeds the 15 N safe working threshold. As the smallest bore in the MI family, there is no smaller standard option available. The CA rear clevis accommodates pivoting loads, but remember that a standard double-acting cylinder drifts if air pressure drops; use a pilot-operated check valve if you must hold a vertical load in place. With a 25 mm stroke, side-load stress on the 4 mm rod is minimal, but always ensure the pivot aligns with the load axis.
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 MI8X25SCA FAQ
At 0.5 MPa, the push force is 25.1 N and the pull force is 18.8 N. At 0.7 MPa, push is 35.2 N and pull is 26.4 N. The theoretical maximum force is 5.1 kgf at 1.0 MPa. The air port size is M5x0.8.
No, the fixed TPU bumper pads only decelerate the piston at the stroke end and do not act as a brake. If air pressure is lost or the valve is centered, the piston will drift. An external rod lock or pilot check valve is required to hold a vertical load.
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