Airtac MI8~12 Stainless Steel Mini Cylinder MI8X90U
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X90U is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 90mm 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
- Stroke90 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM4×0.7
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X90U
Delivering 25.1 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles precise light-duty tasks. The 8 mm bore features an M5x0.8 port and an M4x0.7 male rod thread. Its riveted round body uses a stainless barrel and rod to resist mild corrosion, giving it a real edge over painted alternatives in damp environments. Fixed TPU bumper pads absorb stroke-end impact to protect your mechanism.
Because the 25.1 N rating is a theoretical maximum, plan for a safe working load of roughly 15 N at 0.5 MPa. This translates to lifting about 1.3 kg vertically with a 2:1 safety margin. The U-style back cover provides a 90-degree port orientation for tight routing. Lacking the -S suffix, this specific SKU cannot host CMSG, DMSG or EMSG magnetic sensors; order the -S variant if position feedback is required.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X90U Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X90U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 90 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 MI8X90U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×90 | 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 MI8X90U Is Used
Micro-clip Insertion
Pushes delicate wire clips into PCB assemblies using the 15 N safe working load, where the 90 mm stroke reaches across shallow conveyor lanes.
Lab Tube Ejector
Ejects lightweight plastic sample tubes from a centrifuge carousel, leveraging the 1.3 kg vertical lift capacity to drop them into a collection chute.
Small Part Sorting
Deflects tiny plastic mouldings on a vibratory bowl feeder, utilising the 90-degree U cover to keep the M5x0.8 air lines neatly tucked away.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X90U the Right Cylinder?
When sizing this 8 mm bore, note there is no smaller option in the MI family, while the next size up is the 10 mm bore (offering 39.3 N push at 0.5 MPa) for heavier needs. The 90 mm stroke is well within the 150 mm standard limit for this bore, but at full extension the 4 mm rod is vulnerable to side-loading, so ensure axial alignment to prevent premature wear. The ISO 6432 mounting interface allows this unit to drop directly into standard mini-cylinder brackets and clevises.
Remember that a plain double-acting cylinder drifts when air pressure is lost or the valve is centred, as the TPU pads only decelerate the stroke end rather than locking the rod. To suspend a load safely during an outage, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MI8X90U 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.
No, because this SKU lacks the -S suffix and therefore has no internal magnet. To use CMSG, DMSG or EMSG switches, you must purchase the -S variant. The unit uses an ISO 6432 mounting interface and fixed TPU bumper pads.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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