Airtac MI8~12 Stainless Steel Mini Cylinder MI8X140SCA
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X140SCA is a genuine double acting round-body mini air cylinder with a Ø8mm 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.
- BoreØ8 mm
- Stroke140 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM4×0.7
- CushionFixed TPU bumper pads
About the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X140SCA
Delivering 25.1 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles compact actuation with ease. The Ø8 mm bore features a 4 mm rod and an M5x0.8 port, while the 140 mm stroke approaches the 150 mm maximum standard length for this size. Its riveted round-body construction shrinks footprint and weight, avoiding the bulk of larger assemblies.
The stainless barrel and rod naturally resist mild corrosion, giving a real edge in damp or washdown environments. Fixed TPU bumper pads absorb stroke-end impact without offering adjustable cushioning. Because the actual safe working load is roughly 15 N (about 60% of the 0.5 MPa rating), you can expect it to lift about 1.3 kg vertically with a 2:1 safety margin. The built-in magnet (-S) supports CMSG, DMSG and EMSG switches, and the CA rear pivot cover suits oscillating linkages.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X140SCA Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X140SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 150 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 (Ø8mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 25 N | 19 N |
| 0.7 MPa | 35 N | 26 N |
| Max (@1.0 MPa) | 5 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 MI8X140SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | 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 MI8X140SCA Is Used
Lab Sample Diverters
Routes small vials in diagnostic equipment using a safe working load of 15 N, leveraging the stainless build to resist chemical humidity.
Micro-Clamp Actuators
Secures delicate electronic components during soldering with a 1.3 kg vertical lift capacity, using the CA pivot to swing clear.
Pouch Sealing Jaws
Closes lightweight film jaws over a 140 mm span, relying on CMSG sensors to confirm stroke position for repeatable seals.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X140SCA the Right Cylinder?
When sizing this actuator, consider stepping up to the Ø10 bore if your application exceeds the 18.8 N pull figure at 0.5 MPa, as there is no smaller MI option below 8 mm. The CA clevis back cover is ideal for pivoting loads, but remember that a plain cylinder drifts if air pressure drops or the valve is centered; the TPU bumpers only decelerate the stroke end and will not lock the rod. For secure load holding, install an external rod lock or a pilot-operated check valve. Additionally, the 140 mm stroke demands careful alignment to prevent rod bending and premature seal wear.
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 MI8X140SCA FAQ
This Ø8 mm bore cylinder features an M5x0.8 port and a 4 mm rod. It generates 25.1 N push and 18.8 N pull at 0.5 MPa, 35.2 N push and 26.4 N pull at 0.7 MPa, with a theoretical maximum of 5.1 kgf at 1.0 MPa.
Yes, the Ø8 bore uses the ISO 6432 mounting interface, dropping into standard mini-cylinder brackets and clevises. The -S suffix denotes a built-in magnet for CMSG, DMSG or EMSG switches, while fixed TPU bumpers handle end-of-stroke deceleration.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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