Airtac MI8~12 Stainless Steel Mini Cylinder MI8X5SU
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X5SU is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 5mm 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
- Stroke5 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 MI8X5SU
Generating 25.1 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles microscopic 5 mm strokes with precision. The riveted round body and Ø4 mm rod shrug off mild corrosion, outperforming painted alternatives in damp environments. Its compact footprint integrates seamlessly via standard ISO 6432 mounting dimensions.
Equipped with an M5x0.8 port and a built-in magnet for CMSG, DMSG or EMSG switches, the U-style 90-degree rear cover optimises tight spatial layouts. Plan for roughly 15 N of actual work at 0.5 MPa, which translates to lifting about 1.3 kg vertically. Fixed TPU bumper pads absorb end-of-stroke impact without requiring adjustment.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X5SU Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X5SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 5 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 MI8X5SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×5 | 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 MI8X5SU Is Used
Micro-Clamping
Secures delicate electronic components on PCB assembly lines using a 5 mm travel, preventing damage while applying a safe 15 N holding force.
Sensor Actuation
Triggers small limit switches or micro-valves in dense packaging machinery where the 90-degree U-cover and compact ISO 6432 dimensions save space.
Lab Dispensing
Moves pipetting heads or tiny dosing valves in laboratory automation, relying on the stainless construction to resist moisture and chemical washdown.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X5SU the Right Cylinder?
When sizing this 8 mm bore, stepping up to the Ø10 bore provides 39.3 N of push at 0.5 MPa if your 5 mm motion demands more authority, though no smaller standard MI exists for lighter duties. Because this SKU includes the -S magnet, it is fully ready for position sensing. Remember that venting the air supply causes the piston to drift; the bumpers only decelerate the stroke end, so install a pilot-operated check valve if you must hold a load vertically.
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 MI8X5SU FAQ
At 0.5 MPa it pushes 25.1 N and pulls 18.8 N; at 0.7 MPa it pushes 35.2 N and pulls 26.4 N. The theoretical maximum force is 5.1 kgf at 1.0 MPa. It uses an M5x0.8 air port.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. Use an external rod lock or pilot check valve for load holding.
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1-Year Warranty
Covers non-human-caused product damage.
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