Airtac MI8~12 Stainless Steel Mini Cylinder MI12X5U
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X5U is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 5mm 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
- Stroke5 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 MI12X5U
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles very short 5 mm strokes with precision. The riveted barrel and rod resist mild corrosion, making it superior to painted alternatives in damp environments. Its compact footprint uses the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets.
Equipped with fixed TPU bumper pads to decelerate the stroke end, the unit operates at 30-800 mm/s. It features an M5x0.8 port and a 90-degree U back cover for specific pivot orientations. Plan for roughly 34 N of actual work at 0.5 MPa, which means it lifts about 2.9 kg vertically with a 2:1 safety margin. This SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG switches without upgrading to the -S variant.
Airtac MI8~12 Stainless Steel Mini Cylinder MI12X5U Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X5U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 5 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 MI12X5U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | Bore size in mm. |
| ×5 | 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 MI12X5U Is Used
PCB Ejection
Uses the precise 5 mm stroke to push finished circuit boards out of an SMT pick-and-place line without damaging delicate traces.
Small Part Clamping
Secures micro-plastic housings during ultrasonic welding, applying a safe 34 N working force to prevent part deformation.
Lab Dispenser Actuation
Triggers a micro-valve for chemical dosing in analytical instruments, leveraging the stainless build to withstand humid lab conditions.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X5U the Right Cylinder?
When sizing this bore, stepping down to the Ø8 model drops the push force to 25.1 N at 0.5 MPa, while moving up to the Ø16 bore increases it to 100.5 N. This 5 mm stroke is ideal for clamping or ejecting small electronic parts. Because the stroke is so short, side-load and rod-bending risks are minimal compared to longer travel lengths.
Remember that a standard double-acting cylinder drifts if air pressure is lost or the valve is centered; the TPU bumpers only soften the end of travel and do not function as a brake. For applications requiring a held load, install an external rod lock or a pilot-operated check valve. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion.
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 MI12X5U FAQ
This 12 mm bore cylinder has an M5x0.8 port. It generates 56.5 N push and 42.4 N pull at 0.5 MPa, increasing to 79.1 N push and 59.4 N pull at 0.7 MPa. The theoretical maximum force is 11.5 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so CMSG, DMSG or EMSG switches cannot be used. You must select the -S magnet variant for position sensing. It uses the ISO 6432 mounting interface and fixed TPU bumper pads rather than an adjustable air cushion.
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