Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 140mm 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
- Stroke140 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SU
Generating 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles a 140 mm stroke with a compact riveted round body. The Ø20 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.
The built-in piston magnet supports CMSG, DMSG and EMSG switches for position sensing. Fixed TPU bumper pads absorb the impact at stroke extremes without adding bulk. For practical sizing, plan for about 94 N of real work at 0.5 MPa, which means it can safely lift an 8 kg part vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 140 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 MI20X140SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×140 | 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 MI20X140SU Is Used
Package Deflection
Pushes light cardboard cartons on a packaging line using its 157 N thrust and 140 mm travel to clear jams.
Textile Loom Tensioning
Maintains thread tension in humid textile facilities where the stainless rod prevents mild corrosion.
Bin Gate Actuation
Opens small parts hopper gates, lifting roughly 8 kg loads vertically with a safe 2:1 margin.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SU the Right Cylinder?
When sizing this 140 mm stroke unit, consider the neighbouring bores: a Ø16 generates 100.5 N push while a Ø25 yields 245.3 N at 0.5 MPa. The 90-degree U rear cover dictates your port and pivot orientation from the back. Because the 140 mm travel exposes the rod to leverage, minimize side-loading to prevent bending. This SKU includes the -S magnet for sensors; without it, position detection is impossible.
Note that a standard double-acting cylinder drifts when air is lost or the valve centers. The TPU bumpers only decelerate the end of travel and do not function as a brake. To suspend a load safely mid-stroke, install an external rod lock or a pilot-operated check valve.
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 MI20X140SU FAQ
This Ø20 mm bore cylinder features a 1/8 inch port. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
Yes, the Ø20 bore uses the ISO 6432 mounting interface, so it drops into standard mini-cylinder clevises and brackets. The -S magnet in this model enables CMSG, DMSG and EMSG switches for electronic or reed position sensing.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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