Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150SU
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150SU is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 150mm 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
- Stroke150 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 MI8X150SU
Delivering 25.1 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles compact automation tasks with ease. The riveted round-body construction pairs a corrosion-resistant barrel and rod with fixed TPU bumper pads that absorb stroke-end impact. Because it carries the -S suffix, an internal piston magnet is present, allowing direct mounting of CMSG, DMSG or EMSG reed and electronic switches for position sensing.
At the maximum standard stroke of 150 mm for this bore, the M5x0.8 port and M4x0.7 male rod thread keep the footprint minimal. The rear U-style cover provides a 90-degree mounting orientation. For practical sizing, plan for roughly 15 N of usable work at 0.5 MPa, which translates to lifting about 1.3 kg vertically with a safe 2:1 margin.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150SU Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 150 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 MI8X150SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×150 | 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 MI8X150SU Is Used
Micro-clip Ejection
Pushes small plastic or metal clips out of a stamping die with 25.1 N of force, using the 150 mm stroke to clear the press bed entirely.
Lab Tube Routing
Diverts delicate glass test tubes on a diagnostic analyser carriage, where the stainless rod resists humidity and the U cover sets the 90-degree angle.
Small Part Sorting
Actuates a deflector gate on a vibratory bowl feeder to reject lightweight defective caps, triggering an EMSG sensor to confirm the stroke.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X150SU the Right Cylinder?
When sizing this 8 mm bore, stepping up to the MI12X150 is advisable if you need more power, as the 12 mm bore yields 56.5 N of push force at 0.5 MPa compared to the 25.1 N offered here. There is no smaller standard AirTAC MI bore below 8 mm, making this the most compact option in the range. The built-in magnet (-S) is essential if your control system requires CMSG, DMSG or EMSG sensor feedback.
Remember that the fixed TPU bumpers only decelerate the piston near the stroke end; they do not function as a lock. If air pressure drops or the valve is centred, the rod will drift, so an external pilot check valve is required to hold a load securely in place. Operating speed spans 30-800 mm/s across a 0.15-1.0 MPa pressure range.
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 MI8X150SU 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, 35.2 N push and 26.4 N pull at 0.7 MPa, with a theoretical maximum force of 5.1 kgf at 1.0 MPa.
Yes, the 8 mm bore uses the ISO 6432 mounting interface, so it drops directly into standard mini-cylinder clevises and brackets. The -S suffix denotes a built-in magnet, meaning it is fully compatible with CMSG, DMSG and EMSG position switches.
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