Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300U is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 300mm 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
- Stroke300 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300U
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 300 mm stroke with ease. The riveted barrel and piston rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Its 1/8" port and M8x1.25 male rod thread are paired with a U-type back cover that orients the rear connection at 90 degrees.
Because the bore uses the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets and clevises. Plan for a real work rate of roughly 94 N, which lets the rod lift about 8 kg vertically with a safe 2:1 margin. Fixed TPU bumper pads soften the impact at the stroke extremes, though they decelerate rather than act as an adjustable cushion.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 300 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 MI20X300U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×300 | 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 MI20X300U Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 157 N push force to redirect cardboard cartons at 90 degrees without stalling.
Vertical Parts Ejection
Raises lightweight plastic mouldings out of a fixture, comfortably lifting parts under 8 kg through its 300 mm travel distance.
Textile Loom Tensioning
Maintains consistent yarn tension in a humid manufacturing environment, relying on the stainless steel rod to resist mild corrosion.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300U the Right Cylinder?
When sizing this 300 mm stroke unit, note the Ø16 bore below supplies 100.5 N of push at 0.5 MPa, while the Ø25 above offers 245.3 N. If your machine needs position feedback, you must select the -S magnet version, as this base SKU lacks the internal magnet required for CMSG, DMSG or EMSG switches. You can mount it via LB foot, FA flange, SDB pivot or TC trunnion hardware.
With a 300 mm extension, keep an eye on side-loading to avoid rod bending. Remember that a standard cylinder drifts if air pressure drops or the valve centres; the TPU pads only soften the end of stroke and will not hold the load. Use an external rod lock or a pilot-operated check valve if you need to maintain vertical position.
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 MI20X300U FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M8x1.25.
Yes, the Ø20 bore follows the ISO 6432 mounting interface, so it fits standard mini-cylinder clevises and brackets. However, this specific SKU lacks a magnet, so you cannot attach CMSG, DMSG or EMSG switches unless you purchase the -S variant.
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