
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X20SCA is a genuine double acting round-body mini air cylinder with a Ø12mm 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.
Generating 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 20 mm strokes with precision. The riveted barrel and rod resist mild corrosion, making it superior to painted alternatives in damp environments. Equipped with an M5x0.8 port and a CA rear pivot cover, it integrates smoothly into clevis mounts.
Because the bore is Ø12, it conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets. The built-in -S magnet supports CMSG, DMSG, and EMSG switches for position sensing. Plan for roughly 34 N of actual work at 0.5 MPa, which means it can safely lift about 2.9 kg vertically against gravity.
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X20SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 250 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | 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.
Ideal for small part transfer in electronics assembly, using the 20 mm stroke to actuate a vacuum nozzle with precise positioning feedback.
Secures thin packaging films during heat sealing operations, where the stainless body withstands occasional washdowns and mild moisture.
Pushes lightweight molded plastic parts out of a machining fixture, relying on the CA pivot to accommodate slight angular misalignment.
For lower force needs, the Ø10 bore provides 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 bore yields 100.5 N if this 56.5 N unit is undersized. The fixed TPU bumper pads soften impact at the stroke ends but do not act as an adjustable air cushion. If your process requires variable deceleration, consider the MIC variant.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the bumpers only decelerate and never lock the piston. To suspend a load safely, install an external rod lock or a pilot-operated check valve. The CA back cover supplied here is ideal for pivoting loads, and the -S magnet ensures full compatibility with reed and electronic sensors.
Quick checklist
At 0.5 MPa, the push force is 56.5 N and the pull force is 42.4 N. At 0.7 MPa, push is 79.1 N and pull is 59.4 N. The theoretical maximum force is 11.5 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 function as a brake. If air is lost, the piston will drift. You must use an external rod lock or pilot check valve to hold a vertical load securely.
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