Airtac MI8~12 Stainless Steel Mini Cylinder MI12X220U
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X220U is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 220mm 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
- Stroke220 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 MI12X220U
Delivering 56.5 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 impacts without requiring manual adjustment. Its 220 mm stroke falls within the standard range, while the rear U cover provides a 90-degree mounting orientation for tight spatial constraints.
Because the Ø12 bore uses an M5x0.8 port and an M6x1.0 male rod thread, integration into existing pneumatic setups is straightforward. The stainless build resists mild washdown and damp environments better than painted alternatives. For practical sizing, plan for a safe working load of about 34 N, which means it lifts roughly 2.9 kg vertically with a 2:1 safety margin. Note that this specific SKU lacks a magnet, so it cannot support CMSG, DMSG or EMSG sensors without switching to the -S variant.
Airtac MI8~12 Stainless Steel Mini Cylinder MI12X220U Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X220U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 220 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 MI12X220U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | Bore size in mm. |
| ×220 | 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 MI12X220U Is Used
PCB Depaneling Ejector
Uses the 220 mm stroke to push separated circuit boards out of a routing fixture, relying on the 56.5 N push force to clear the work area efficiently.
Small Parts Diverter
Extends across a narrow belt to deflect lightweight plastic caps into a secondary lane, benefiting from the 90-degree U cover to keep the body parallel to the frame.
Film Roll Tension Guide
Maintains alignment on a packaging web by applying steady lateral pressure, where the stainless steel barrel withstands occasional washdowns during cleaning cycles.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X220U the Right Cylinder?
When sizing this 12 mm bore, compare it against its neighbours: the smaller Ø8 generates 25.1 N of push at 0.5 MPa, while the larger Ø16 provides 100.5 N. If your application exceeds the 34 N safe working load, stepping up to the 16 mm bore is advisable. Conversely, for lighter duties under 20 N, the Ø8 offers a more compact footprint. The 220 mm stroke is well-suited for extended reach, but at that length you must account for rod bending and side-load limits to prevent premature seal wear.
This model features the U back cover for 90-degree pivot mounting, and its ISO 6432 mounting interface drops directly into standard mini-cylinder brackets and clevises. Remember that a plain double-acting cylinder drifts when air is lost or the valve is centred—the fixed bumpers only decelerate the stroke end and do not act as a lock. To hold a load securely in place during an air failure, incorporate an external rod lock or a pilot-operated check valve into your circuit.
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 MI12X220U FAQ
This double-acting cylinder has 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, this specific SKU does not include a magnet, so it cannot support CMSG, DMSG or EMSG switches. You must select the -S variant (MI12X220U-S) for position sensing. It uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion.
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