Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350U is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 350mm stroke, 1/8" 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.
- BoreØ20 mm
- Stroke350 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350U
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 350 mm stroke with ease. The 20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Fixed TPU bumper pads absorb the impact at stroke extremes, while the riveted construction keeps the body compact.
Because it conforms to ISO 6432 mounting dimensions, this unit drops directly into standard mini-cylinder brackets and clevises. Plan for a safe working load of roughly 94 N, which is about 60 percent of the 0.5 MPa rating. Alternatively, it can lift an 8 kg part vertically when applying a two-to-one safety margin. Note that this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without switching to the -S version.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 500 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×350 | 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 MI16-20 Stainless Steel Mini Cylinder MI20X350U Is Used
Package Diverting
Pushes light cardboard cartons on a packaging line using its 157 N thrust and 350 mm travel distance.
Textile Loom Tensioning
Moves a yarn guide bar through a 350 mm cycle, relying on the stainless rod to withstand humid manufacturing environments.
Bin Push-Off Mechanism
Clears small plastic components from a storage chute, utilizing the 90-degree U cover to fit within a narrow frame.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350U the Right Cylinder?
When sizing this actuator, compare its 157 N push at 0.5 MPa against the 16 mm bore, which offers 100.5 N, or the 25 mm bore, which provides 245.3 N. The 350 mm stroke is well within the 500 mm maximum for this bore, but at full extension the Ø8 mm rod is susceptible to bending if subjected to heavy side loads. The U back cover provides a 90-degree mounting orientation for tight spatial constraints. Remember that a plain cylinder drifts if air pressure is lost or the valve is centred; the TPU pads only decelerate the end of stroke and will not lock the load. Use an external rod lock or pilot check valve for holding requirements.
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 MI16-20 Stainless Steel Mini Cylinder MI20X350U FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. This 20 mm bore cylinder uses a 1/8 inch air port.
No, this specific SKU does not include a magnet. To use CMSG, DMSG or EMSG switches, you must select the -S magnet variant. The unit also features fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion.
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