Airtac MI8~12 Stainless Steel Mini Cylinder MI8X15SU
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X15SU is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 15mm 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
- Stroke15 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 MI8X15SU
Generating 25.1 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles tiny actuation duties with ease. The Ø8 mm bore uses an M5x0.8 air port and a 4 mm piston rod with an M4x0.7 male thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted-steel alternatives in damp or washdown environments. The riveted construction remains highly compact, while fixed TPU bumper pads absorb impact at the stroke ends.
Because the 15 mm stroke is so brief, plan for a safe working load of about 15 N rather than the absolute maximum rating. This equates to lifting roughly 1.3 kg vertically with a 2:1 safety margin, making it perfect for lightweight part positioning. The built-in magnet (-S) supports CMSG, DMSG, and EMSG switches for precise end-of-stroke detection.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X15SU Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X15SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 15 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 MI8X15SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×15 | 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 MI8X15SU Is Used
Micro Ejector Pin Actuation
Drives a small 4 mm rod to push delicate electronic components out of an inspection fixture without marring the surface.
Lightweight Part Diverter
Uses the 15 mm stroke to tap tiny plastic mouldings off a conveyor belt into a secondary packaging chute.
Lab Sample Gate
Shifts a small barrier in a humid analytical instrument, relying on the stainless build to withstand daily washdowns.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X15SU the Right Cylinder?
When sizing this bore, there is no smaller standard MI option below Ø8 mm; if you need more power, stepping up to the Ø10 bore raises the push force to 39.3 N at 0.5 MPa. This SKU includes the U-style 90-degree rear cover for compact corner mounting, and you can utilise standard LB foot or FA flange brackets via the ISO 6432 mounting dimensions. For longer travels, be mindful of side loads, though the 15 mm stroke keeps rod-bending risks minimal.
Remember that a plain double-acting cylinder drifts if air pressure drops or the valve is centred, as the TPU bumpers only soften the stroke end rather than locking the rod. To suspend a load safely during an air loss event, integrate an external pilot-operated check valve or a dedicated rod lock.
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 MI8X15SU FAQ
At 0.5 MPa it provides 25.1 N push and 18.8 N pull. At 0.7 MPa it provides 35.2 N push and 26.4 N pull. The theoretical maximum force is 5.1 kgf at 1.0 MPa. The air port is M5x0.8.
Yes, the -S designation means it has a built-in piston magnet. You can directly mount CMSG, DMSG, or EMSG electronic or reed switches onto the round body to detect the 15 mm stroke endpoints.
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