Airtac MI8~12 Stainless Steel Mini Cylinder MI8X55SCA
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X55SCA is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 55mm 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
- Stroke55 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 MI8X55SCA
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 uses an M5x0.8 port and a Ø4 mm piston rod with an M4x0.7 male thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
The riveted round-body design keeps the unit compact while fixed TPU bumper pads absorb impact at the stroke ends. Because the -S suffix denotes a built-in piston magnet, you can mount CMSG, DMSG or EMSG switches for position sensing. For practical sizing, plan for about 15 N of real work at 0.5 MPa, which means it lifts roughly 1.3 kg vertically with a 2:1 safety margin.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X55SCA Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X55SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 55 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 MI8X55SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×55 | 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 MI8X55SCA Is Used
Electronic Component Sorting
Pushes lightweight PCBs or resistors along a conveyor lane using a precise 55 mm stroke and 15 N safe working load.
Lab Sample Diverting
Pivots via the CA clevis to deflect small vial racks on a diagnostic carousel, benefiting from the stainless build in humid labs.
Small Part Ejection
Kicks tiny plastic moulded parts out of an injection moulding die area where the compact 8 mm bore fits tight tooling.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X55SCA the Right Cylinder?
As the smallest bore in the MI family, the Ø8 steps up to the Ø12 bore (56.5 N push at 0.5 MPa) when higher force is required. The 55 mm stroke sits well within the 150 mm standard limit, keeping the assembly short. A CA rear pivot cover suits clevis mounting, and the ISO 6432 mounting interface ensures compatibility with standard mini-cylinder brackets.
Remember that a standard cylinder drifts if air pressure drops or the valve is centered, as the TPU pads only decelerate the stroke end rather than locking the rod. For suspended loads that must hold position, add an external rod lock or a pilot-operated check valve.
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 MI8X55SCA FAQ
This double-acting cylinder pushes 25.1 N and pulls 18.8 N at 0.5 MPa. At 0.7 MPa it pushes 35.2 N and pulls 26.4 N, with a theoretical max of 5.1 kgf at 1.0 MPa. The air port is M5x0.8.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. The CA back cover provides a rear pivot/clevis interface, and the body uses the ISO 6432 mounting dimensions for standard brackets.
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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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