
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30SU is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 30mm 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 compact actuation with ease. The Ø12 mm bore uses an M5x0.8 air port and a Ø6 mm piston rod with an M6x1.0 male thread. Its riveted round-body construction shrinks the footprint while the stainless barrel and rod naturally shrug off mild corrosion in damp environments.
The built-in piston magnet (-S) directly supports CMSG, DMSG and EMSG reed or electronic switches for position sensing. Plan for roughly 34 N of actual work at 0.5 MPa, which translates to lifting about 2.9 kg vertically with a 2:1 safety margin. Fixed TPU bumper pads absorb the impact at stroke extremes, and the U back cover provides a 90-degree port orientation for tight machinery layouts.
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 30 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. |
| ×30 | 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.
Actuates a lightweight routing gate in electronics assembly, using the 30 mm stroke to cleanly divert cut boards with precise positioning.
Drives a small dosing head in analytical equipment, where the stainless build resists chemical exposure and the 2.9 kg vertical lift capacity moves the mechanism reliably.
Pushes moulded plastic components out of a pick-and-place fixture, leveraging the 56.5 N push force to free parts without damaging them.
When sizing this bore, the smaller Ø10 MI yields 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 MI provides 100.5 N, giving you clear boundaries if your 56.5 N requirement shifts. The 30 mm stroke keeps the rod compact to minimise side-loading and bending stresses. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG or EMSG sensors without modifying the cylinder. Remember that the fixed TPU bumpers only decelerate the piston near the end caps; they do not function as a lock. If your application must prevent drift on air loss or valve centring, install an external rod lock or a pilot-operated check valve.
Quick checklist
This Ø12 mm bore cylinder features an M5x0.8 air port. It generates 56.5 N push and 42.4 N pull at 0.5 MPa, 79.1 N push and 59.4 N pull at 0.7 MPa, with a theoretical maximum force of 11.5 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG and EMSG switches. The U back cover provides a 90-degree port and mounting orientation, and it uses standard ISO 6432 mini-cylinder mounting dimensions for easy bracket integration.
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