Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25U
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25U is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 25mm 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
- Stroke25 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 MI8X25U
Delivering 25.1 N of push force at 0.5 MPa, this compact 8 mm bore actuator handles light-duty positioning across a 25 mm stroke. The riveted stainless-steel barrel and rod shrug off mild washdown and damp conditions better than painted alternatives. A built-in 90-degree U rear cover directs the M5x0.8 pneumatic port neatly sideways for tight machinery layouts.
Because the bore matches the ISO 6432 mini-cylinder mounting interface, it drops straight into standard clevis brackets. Plan for roughly 15 N of actual work at 0.5 MPa to ensure smooth cycling, which translates to lifting about 1.3 kg vertically with a 2:1 safety margin. Fixed TPU bumper pads absorb the impact at stroke end, and since this specific SKU lacks a magnet, it cannot host CMSG or DMSG sensors without switching to the -S version.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25U Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 25 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 MI8X25U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×25 | 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 MI8X25U Is Used
Micro-Clamp Actuation
Drives tiny pneumatic grippers on electronics assembly lines, using its 25.1 N push force to secure delicate PCBs without crushing components.
Lab Dispenser Positioning
Moves lightweight fluid nozzle brackets in compact diagnostic equipment, where the stainless body resists chemical splashes and the 25 mm stroke provides exact dosing travel.
Small Part Ejection
Pushes miniature plastic mouldings out of tight tooling cavities, with the 90-degree U cover allowing the M5x0.8 air line to tuck neatly alongside the machine frame.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25U the Right Cylinder?
When sizing this 8 mm unit, there is no smaller standard MI bore below it, but stepping up to the 12 mm bore significantly increases capability to 56.5 N push at 0.5 MPa if your air supply is robust. If air pressure drops or the directional valve centres, the piston will drift and drop the load; the TPU pads only soften the end-of-stroke impact rather than locking the rod. For suspended loads, add an external pilot check valve.
The 90-degree U back cover keeps the M5x0.8 port orientation perpendicular to the body, saving valuable axial depth. This non-magnetic configuration precludes switch integration, so for position feedback you must specify the -S magnet variant to mount CMSG, DMSG or EMSG sensors.
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 MI8X25U FAQ
This 8 mm bore cylinder features an M5x0.8 port and a 4 mm rod. It generates 25.1 N push and 18.8 N pull at 0.5 MPa, increasing to 35.2 N push and 26.4 N pull at 0.7 MPa. The theoretical maximum force is 5.1 kgf at 1.0 MPa.
No, this specific SKU lacks the internal magnet required for sensing. To use CMSG, DMSG or EMSG switches, you must select the -S magnet variant. The unit relies on fixed TPU bumper pads for end-of-stroke deceleration and uses an ISO 6432 mounting interface.
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 MI8X25U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.