Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SCA
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SCA 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 MI8X20SCA
Delivering 25.1 N of push force at 0.5 MPa, the AirTAC MI8X20SCA is a compact double-acting round-body mini cylinder built for tight spaces. Its stainless-steel barrel and Ø4 mm rod shrug off mild corrosion, giving it a real edge over painted-steel alternatives in damp or washdown-prone environments. The riveted construction keeps the body light, while fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning.
This 8 mm bore unit includes a built-in piston magnet for CMSG, DMSG or EMSG reed and electronic switches, allowing precise end-of-stroke detection. Because it adheres to ISO 6432 mounting dimensions, it drops directly into standard mini-cylinder brackets and clevises. For practical sizing, plan for a safe working load of roughly 15 N, which means it can comfortably lift about 1.3 kg vertically with a 2:1 safety margin.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SCA Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SCA |
|---|---|
| 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 MI8X20SCA
| 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 MI8X20SCA Is Used
Micro-clip Insertion
Pushes delicate wire clips into PCB assemblies using the 25.1 N push force, relying on the 20 mm stroke for rapid, short-cycle actuation.
Lab Dispenser Trigger
Taps the plunger on a pneumatic reagent dispenser where the stainless body resists chemical moisture and the CA clevis allows a pivoting mount.
Small Part Ejection
Kicks tiny moulded plastic parts out of a machining fixture, using the internal magnet and a DMSG sensor to confirm the ejection stroke completed.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X20SCA the Right Cylinder?
When sizing this 8 mm bore, there is no smaller option in the MI family, so if your task exceeds the 25.1 N push at 0.5 MPa, step up to the Ø10 bore which provides 39.3 N. The CA rear pivot cover on this SKU is ideal for clevis mounting that accommodates slight misalignment. Remember that a plain double-acting cylinder drifts if air pressure is lost or the valve is centred; the TPU bumpers only decelerate the stroke end and do not act as a brake, so fit an external rod lock or pilot check valve if you need to hold a vertical load.
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 MI8X20SCA FAQ
At 0.5 MPa this 8 mm bore cylinder provides 25.1 N push and 18.8 N pull. At 0.7 MPa it provides 35.2 N push and 26.4 N pull, with a theoretical maximum force of 5.1 kgf at 1.0 MPa. The air port is M5x0.8 and the male rod thread is M4x0.7.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the piston near the stroke end and do not function as a locking brake. To maintain a vertical position, you must add an external rod lock or a pilot-operated check valve.
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