Airtac MI8~12 Stainless Steel Mini Cylinder MI8X45SCA
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X45SCA is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 45mm 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
- Stroke45 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 MI8X45SCA
Delivering 25.1 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact 45 mm actuation with ease. The Ø8 mm bore uses an M5x0.8 port and an M4x0.7 male rod thread, while the built-in piston magnet (-S) enables direct mounting of CMSG, DMSG or EMSG sensors for position feedback.
Its stainless barrel and rod resist mild corrosion, making it superior to painted alternatives in damp environments. The riveted round body keeps the unit light, and fixed TPU bumper pads absorb end-of-stroke impact. Plan for roughly 15 N of actual work at 0.5 MPa, which means it can vertically lift about 1.3 kg safely with a 2:1 margin.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X45SCA Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X45SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 45 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 MI8X45SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×45 | 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 MI8X45SCA Is Used
Micro-Clamp Actuation
Drives small pneumatic clamps in PCB assembly fixtures, utilising its 25.1 N push force and 45 mm stroke to secure delicate electronics without crushing them.
Lab Dispenser Positioning
Moves a lab fluid dispensing nozzle precisely between stations, where the stainless build withstands occasional chemical splashes and the CA clevis accommodates slight angular misalignment.
Small Part Ejection
Ejects lightweight plastic moulded parts from a tooling die, relying on the position confirmation from the -S magnet and CMSG switches to verify the ejection cycle.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X45SCA the Right Cylinder?
As the smallest bore in the series, there is no smaller MI option; if 25.1 N is insufficient, step up to the Ø10 bore which provides 39.3 N of push at 0.5 MPa. This SKU includes the CA back cover for pivot or clevis mounting, and the ISO 6432 mounting interface ensures it drops directly into standard mini-cylinder brackets.
Remember that fixed TPU bumpers only decelerate the stroke end and do not function as a lock. If your application must hold a vertical load when air is lost, you must add an external rod lock or a pilot-operated check valve to prevent drift.
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 MI8X45SCA FAQ
This Ø8 mm bore cylinder features an M5x0.8 port and delivers a push force of 25.1 N and a pull force of 18.8 N at 0.5 MPa. At 0.7 MPa, push is 35.2 N and pull is 26.4 N. The theoretical maximum force is 5.1 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston near the stroke end and do not act as a brake. The piston will drift if air is lost or the valve is centred. For vertical loads, install an external rod lock or pilot check valve.
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