
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SCA is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 140mm 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.
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles precise 140 mm strokes. The riveted round body uses a Ø6 mm piston rod and an M5x0.8 port, while the built-in magnet supports CMSG, DMSG, and EMSG position switches. Because the stainless barrel and rod resist mild corrosion, the unit survives damp production zones better than painted-aluminium alternatives.
Its ISO 6432 mounting dimensions let you drop this bore directly into standard mini-cylinder brackets. Plan for roughly 34 N of actual work at 0.5 MPa to maintain efficiency, which translates to lifting about 2.9 kg vertically with a 2:1 safety margin. The rear CA clevis accommodates pivoting loads, and fixed TPU bumper pads absorb the impact at stroke ends without acting as an adjustable lock.
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 140 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. |
| ×140 | 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.
Uses the CA rear clevis to swing a 140 mm gate on a packaging conveyor, relying on the 56.5 N push force to redirect lightweight cartons.
The stainless-steel construction withstands humid laboratory environments, pushing test tubes out of a centrifuge carriage with a 2.9 kg vertical lift capacity.
CMSG sensors detect the piston position via the internal magnet to eject defective plastic mouldings precisely at the 140 mm stroke end.
When sizing this 12 mm bore, compare your actual load against the 56.5 N push and 42.4 N pull figures at 0.5 MPa. If your payload exceeds the 2.9 kg vertical lift equivalent, step up to the 16 mm bore for 100.5 N of push force; for lighter duty, the 8 mm bore provides 25.1 N. The CA rear clevis suits articulated mechanisms, and you can pair the -S magnet with electronic or reed sensors. If air pressure drops, the piston drifts since the TPU bumpers only decelerate the stroke end rather than braking the load, so add a pilot check valve for vertical holding.
Quick checklist
At 0.5 MPa it provides 56.5 N push and 42.4 N pull. At 0.7 MPa it provides 79.1 N push and 59.4 N pull. The theoretical maximum force is 11.5 kgf at 1.0 MPa. The air port is M5x0.8.
No, the piston will drift if air pressure drops or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not function as a brake. For vertical loads, install an external pilot check valve or rod lock.
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