Airtac MI8~12 Stainless Steel Mini Cylinder MI12X25SU
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X25SU is a genuine double acting round-body mini air cylinder with a Ø12mm 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.
- BoreØ12 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper pads
About the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X25SU
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation tasks with ease. The riveted barrel and rod resist mild corrosion, making it a durable choice over painted alternatives in damp or washdown environments. Its 25 mm stroke and M5x0.8 port keep the footprint small, while the built-in magnet (-S) supports CMSG, DMSG, or EMSG reed and electronic switches for position sensing.
Because the theoretical output exceeds real-world friction, plan for a safe working load of about 34 N rather than the absolute maximum. This translates to lifting roughly 2.9 kg vertically with a 2:1 safety margin, helping you match the cylinder to actual part weights. The Ø12 bore uses the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets and clevises. Fixed TPU bumper pads decelerate the piston at the stroke ends to absorb impact, and the U back cover provides a 90-degree port and mounting orientation for tight spaces.
Airtac MI8~12 Stainless Steel Mini Cylinder MI12X25SU Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X25SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 250 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 (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 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 MI12X25SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | 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 MI12X25SU Is Used
PCB Component Insertion
Uses the 56.5 N push force to seat small electronic connectors onto printed circuit boards without damaging delicate solder pads.
Blister Pack Sorting
Leverages the 25 mm stroke and 90-degree U cover to push lightweight pharmaceutical blister packs into packaging lanes.
Lab Sample Diverting
Employs the stainless-steel body and CMSG sensor compatibility to reliably divert small fluid vials on washdown-resistant lab conveyors.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X25SU the Right Cylinder?
When sizing this 12 mm bore, compare it against its neighbors: the smaller Ø8 generates 25.1 N of push at 0.5 MPa, while the larger Ø16 provides 100.5 N. If your payload exceeds the safe 34 N working load, stepping up to the 16 mm bore is advisable. The U-style rear cover offers a 90-degree mounting and port orientation, which helps route tubing cleanly in confined machinery. Since this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors without modifying the cylinder.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed TPU bumpers only soften the stroke end rather than locking the rod. To suspend a load safely during an air failure, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit. With a 25 mm stroke, side-load and rod-bending stresses remain minimal, but always ensure the load travels on a smooth linear guide to maximize seal life.
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 MI12X25SU FAQ
This 12 mm bore cylinder features an M5x0.8 port and generates a push force of 56.5 N and a pull force of 42.4 N at 0.5 MPa. At 0.7 MPa, the push increases to 79.1 N and the pull to 59.4 N. The theoretical maximum force is 11.5 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston at the stroke ends and do not function as a brake. The piston will drift if air is lost or the valve is centered. You must add an external rod lock or pilot check valve to hold a suspended load securely.
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