
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X45SCA is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 45mm 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 round-body mini cylinder handles compact actuation with ease. The riveted barrel and rod shrug off mild corrosion, making it far superior to painted alternatives in damp processing areas. Equipped with a built-in piston magnet, it supports CMSG, DMSG and EMSG switches for position sensing.
Because the Ø12 bore uses the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets without custom machining. Plan for a safe working load of roughly 34 N, which lets you lift about 2.9 kg vertically against gravity. The M5x0.8 air port keeps the pneumatic footprint small, while fixed TPU bumper pads quietly absorb end-of-stroke impacts.
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X45SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 45 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. |
| ×45 | 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.
Pushes small electronic relays down a guided chute using the 56.5 N thrust, relying on the compact 12 mm bore to fit densely packed machinery.
Holds a lightweight polymer pouch flat during heat sealing, where the stainless body resists occasional washdowns and the CA clevis accommodates jaw articulation.
Actuates a small flipper gate to route test tubes, safely lifting components under the 2.9 kg vertical limit while position is confirmed by a DMSG sensor.
When sizing this 45 mm stroke unit, compare it against its neighbours: a Ø10 bore provides 39.3 N of push at 0.5 MPa, whereas stepping up to a Ø16 bore yields 100.5 N. If your mechanism requires true position holding on air loss, remember this base MI will drift; you must add an external rod lock or pilot check valve. The CA back cover provides a pivot clevis for angular alignment, which is highly useful for articulating mechanisms.
The included magnet enables solid-state or reed sensing along the body. For applications needing rapid cycling with heavier loads, consider the MIC variant for its variable air cushion, as this model relies solely on fixed TPU pads. Always verify side loading to prevent rod bending on the 6 mm rod.
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. It uses an M5x0.8 air port.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. For vertical load holding, install an external rod lock or pilot-operated check valve.
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