Airtac MI8~12 Stainless Steel Mini Cylinder MI12X50U
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X50U is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 50mm 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.
- BoreØ12 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper pads
About the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X50U
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation with ease. The Ø12 mm bore features a 6 mm piston rod and M5x0.8 air port, while the U back cover provides a 90-degree orientation for tight spatial constraints. Its riveted, rolled construction shrinks the footprint without sacrificing structural integrity.
The stainless barrel and rod naturally shrug off mild corrosion, outlasting painted alternatives in damp or washdown-prone environments. Because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG sensors. For practical sizing, 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.
Airtac MI8~12 Stainless Steel Mini Cylinder MI12X50U Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X50U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 50 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.
Theoretical Output Force (Ø12mm)
| 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.
Model Code: Airtac MI8~12 Stainless Steel Mini Cylinder MI12X50U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | Bore size in mm. |
| ×50 | 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 MI12X50U Is Used
PCB Depaneling Gate
Cycles a lightweight routing blade to separate printed circuit boards, utilizing the 56.5 N push force to cleanly shear connection points without stressing the substrate.
Parts Diverting Flap
Actuates a small diverter arm on a conveyor belt, using the 90-degree U cover to fit flush against the frame while pushing light plastic housings into a secondary lane.
Lab Vial Ejector
Pushes filled glass vials out of a testing carousel, where the stainless construction prevents corrosion from reagent splashes and the 2.9 kg vertical lift margin easily handles the low mass.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X50U the Right Cylinder?
When sizing this actuator, compare it against its neighbours: the smaller Ø8 bore yields 25.1 N of push, whereas stepping up to the Ø16 bore provides 100.5 N at 0.5 MPa. The 50 mm stroke is well within the 250 mm maximum standard limit, keeping the rod rigid and minimizing side-load bending. Fixed TPU bumper pads decelerate the piston at the stroke ends, but they do not function as an adjustable air cushion.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centred, as the bumpers only soften impact rather than locking the rod. If your application requires strict position holding, integrate an external rod lock or a pilot-operated check valve. To add position feedback, you must select the -S magnet variant to enable sensing switches.
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 MI12X50U FAQ
This Ø12 mm bore cylinder features an M5x0.8 air port and a 6 mm piston rod. 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.
No, this specific SKU does not include the -S magnet, so it cannot host CMSG, DMSG or EMSG switches. You must select the -S variant for position sensing. The unit uses the ISO 6432 mounting interface for standard brackets and relies on fixed TPU bumper pads for stroke-end deceleration.
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