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
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.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MI8~12 Stainless Steel Mini Cylinder MI8X90U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.