Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCATC
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCATC 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 MI8X25SCATC
Delivering 25.1 N of push force at 0.5 MPa, this compact stainless-steel round-body mini cylinder handles light-duty positioning with ease. The riveted Ø8 mm barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. Because it uses the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets and clevises without custom machining.
This double-acting actuator features a built-in piston magnet for CMSG, DMSG or EMSG switches, a CA pivot rear cover, and a TC trunnion mount for versatile placement. The M5x0.8 port feeds air to extend and retract the 4 mm rod at speeds between 30 and 800 mm/s. Plan for roughly 15 N of actual work at 0.5 MPa, which means it can safely lift a 1.3 kg part vertically with a 2:1 safety margin.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCATC Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCATC |
|---|---|
| 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 MI8X25SCATC
| 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 MI8X25SCATC Is Used
Micro-Clamp Actuation
Drives small pneumatic clamps in PCB assembly fixtures, using the 25.1 N push force to secure delicate electronic components without crushing them.
Lab Dispenser Positioning
Moves a lightweight fluid dispensing head in chemical analysis equipment, where the stainless construction resists mild moisture and chemical vapors.
Small Part Ejection
Ejects tiny plastic moulded parts from a pickup tool, relying on the TC trunnion and CA clevis to accommodate the pivoting ejection arc.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X25SCATC the Right Cylinder?
When sizing this 8 mm bore, stepping up to the Ø10 model raises the 0.5 MPa push force to 39.3 N, while this is the smallest available MI series option for extremely tight spaces. The integrated -S magnet allows seamless position detection, and the TC trunnion pairs perfectly with the CA clevis back cover for pivoting loads.
Keep in mind that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the fixed TPU bumper pads only soften the end-of-stroke impact rather than locking the rod. To suspend a load safely during an air loss event, install an external rod lock or a pilot-operated check valve. Additionally, the short 25 mm stroke keeps side-loading and rod-bending stress to an absolute minimum.
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 MI8X25SCATC FAQ
This double-acting cylinder generates 25.1 N push and 18.8 N pull at 0.5 MPa, and 35.2 N push / 26.4 N pull at 0.7 MPa. The theoretical maximum force is 5.1 kgf at 1.0 MPa. It uses an M5x0.8 air port.
No, the base MI uses fixed TPU bumper pads to decelerate the stroke end, not an adjustable air cushion (see the MIC variant for that). It also cannot hold a load if air is lost; the piston will drift, so an external rod lock or pilot check valve is required for position holding.
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