Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30U
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30U 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.
- BoreØ12 mm
- Stroke30 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 MI12X30U
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles compact actuation where space is tight. The Ø12 mm bore uses an M5x0.8 air port and an M6x1.0 male rod thread. Its round-body barrel and piston rod are rolled and riveted, shrugging off mild corrosion better than painted alternatives in damp or washdown-prone environments.
Because the U suffix equips the rear cover with a 90-degree porting orientation, plumbing drops neatly into tight machine cells. The fixed TPU bumper pads absorb stroke-end impact without offering adjustable cushioning. Plan for roughly 34 N of actual work at 0.5 MPa, which translates to lifting about 2.9 kg vertically with a safe 2:1 margin. This SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG switches without changing to the -S variant.
Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30U Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30U |
|---|---|
| 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.
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 MI12X30U
| 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.
Where the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30U Is Used
PCB Depaneling Gate
Cycles a lightweight routing blade to singulate printed circuit boards, utilising the 56.5 N push force to cleanly sever waste tabs without stressing the substrate.
Carton Flap Tucking
Deploys a short 30 mm stroke to tuck minor flaps on small pharmaceutical cartons, where the U cover keeps pneumatic tubing routed cleanly along the conveyor frame.
Lab Dispenser Trigger
Taps the valve on a benchtop reagent dispenser, where the stainless-steel rod withstands accidental chemical splashes and the compact riveted body fits inside fume hoods.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X30U the Right Cylinder?
When sizing this 30 mm stroke actuator, the smaller Ø10 bore yields 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 bore provides 100.5 N if your payload exceeds the 34 N safe working load calculated for this unit. The ISO 6432 mounting interface on this Ø12 bore means it drops directly into standard mini-cylinder brackets and clevises, simplifying retrofits. Alongside the U rear cover, you can utilise LB foot, FA flange, SDB pivot or TC trunnion mounts.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the directional valve centres; the bumper pads only decelerate the stroke end and never act as a brake. To suspend a load securely mid-stroke, fit an external rod lock or a pilot-operated check valve. For higher cycling speeds that require end-of-stroke deceleration, consider the MIC variable air cushion variant.
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 MI12X30U FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N. At 0.7 MPa it pushes 79.1 N and pulls 59.4 N. The theoretical maximum force is 11.5 kgf at 1.0 MPa. The air port is M5x0.8 and the male rod thread is M6x1.0.
No, this specific SKU lacks the internal magnet required for sensing. To use CMSG, DMSG or EMSG switches, you must specify the -S variant. The unit relies on fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion.
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