Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SUTC
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SUTC 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 MI8X25SUTC
Delivering 25.1 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles the smallest actuation tasks with precision. The Ø8 mm bore uses an M5x0.8 port and a Ø4 mm piston rod with an M4x0.7 male thread. Its riveted round-body construction shrinks the footprint while the stainless barrel and rod naturally shrug off mild corrosion in damp environments. Fixed TPU bumper pads absorb the stroke-end impact to protect your mechanism.
Because the 25.1 N rating is a theoretical maximum, plan for a safe working load of about 15 N of real work at 0.5 MPa. For vertical lifts, that translates to raising roughly 1.3 kg safely with a 2:1 margin. This SKU includes a built-in piston magnet for position sensing and conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SUTC Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SUTC |
|---|---|
| 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 MI8X25SUTC
| 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 MI8X25SUTC Is Used
Micro-Clamp Actuation
Drives tiny pneumatic grippers on PCB assembly stations, providing the 15 N safe working load needed to hold delicate electronic components without crushing them.
Lab Dispenser Positioning
Moves a fluid nozzle in compact diagnostic equipment, where the stainless build resists chemical splashes and the 25 mm stroke places drops accurately.
Small Part Ejection
Pushes lightweight plastic mouldings out of a sub-assembly jig, utilising the TC trunnion mount to accommodate the required pivot angle.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SUTC the Right Cylinder?
As the smallest bore in the MI family, the Ø8 is the starting point for ultra-light duties; if you need more power, the next size up is the Ø10, which raises the push force to 39.3 N at 0.5 MPa. This model features a U-type 90-degree back cover and a TC trunnion mount for pivoting setups. The included -S magnet enables CMSG, DMSG or EMSG switches for end-of-stroke detection.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred—the TPU bumpers only decelerate the piston near the end of the stroke and act purely as impact absorbers, never as a locking brake. To suspend a load safely mid-stroke, fit an external rod lock or a pilot-operated check valve.
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 MI8X25SUTC 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 suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. It uses a U-type 90-degree back cover and is paired with a TC trunnion mount. The fixed TPU bumpers decelerate the stroke but do not function as an adjustable air cushion.
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