Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SU
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SU is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 140mm 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
- Stroke140 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SU
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 140 mm stroke with ease. The Ø12 mm bore uses an M5x0.8 port and a Ø6 mm piston rod with an M6x1.0 male thread. Its riveted stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown-prone environments. Because it uses the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets and clevises.
For practical sizing, plan for about 34 N of real work at 0.5 MPa, which safely lifts roughly 2.9 kg vertically. The built-in piston magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing, while the U back cover provides a 90-degree mounting option. Fixed TPU bumper pads absorb the impact at the stroke ends, and the unit operates reliably between 30 and 800 mm/s.
Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SU Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 140 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 MI12X140SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | Bore size in mm. |
| ×140 | 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 MI12X140SU Is Used
PCB Component Pusher
Uses the 56.5 N push force to gently nudge electronic components into testing fixtures without damaging delicate circuit boards.
Small Carton Flap Folder
Employs the 140 mm stroke and 90-degree U cover to fold lightweight cardboard flaps on automated packaging lines.
Lab Sample Divertor
Leverages the stainless-steel build to resist moisture while diverting vials in diagnostic equipment using CMSG position sensors.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X140SU the Right Cylinder?
When sizing this actuator, the Ø10 bore provides a smaller footprint with 39.3 N of push at 0.5 MPa, whereas stepping up to the Ø16 bore yields 100.5 N if your application demands more strength. This 140 mm stroke falls well within the 250 mm maximum standard stroke for the Ø12 bore, keeping it a readily available configuration. At this length, be mindful of side loads to prevent rod bending over the extended travel distance.
The U back cover simplifies 90-degree mounting orientations, and the -S magnet enables electronic or reed sensor tracking. Remember that a standard double-acting cylinder drifts if air pressure is lost or the valve is centred; the TPU bumpers only decelerate the stroke end and do not function as a locking brake. To suspend a load safely mid-stroke, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MI12X140SU FAQ
This Ø12 mm bore cylinder features an M5x0.8 port and delivers a push force of 56.5 N and a pull force of 42.4 N at 0.5 MPa. At 0.7 MPa, the push increases to 79.1 N and the pull to 59.4 N. The theoretical maximum force is 11.5 kgf at 1.0 MPa.
No, the base MI uses fixed TPU bumper pads that decelerate the stroke end rather than an adjustable air cushion; for variable cushioning, look at the MIC variant. However, because this model includes the -S magnet, it fully supports CMSG, DMSG, and EMSG reed or electronic switches for position sensing.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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