Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 20mm 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
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation tasks with ease. The 20 mm bore uses a 1/8" port and an M8x1.25 male rod thread, while fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning. Because the piston rod and barrel are stainless, the riveted construction resists mild corrosion better than painted alternatives in damp or washdown environments.
The built-in magnet (-S) directly supports CMSG, DMSG and EMSG position switches for end-of-stroke confirmation. For real-world sizing, plan for a safe working load of about 94 N, which means it can vertically lift roughly 8 kg with a 2:1 safety margin. The U back cover provides a 90-degree port orientation to simplify tubing layout in tight machinery.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 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 MI20X20SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 MI20X20SU Is Used
Small Parts Ejection
Uses the 157 N push force to positively eject plastic moulded components from an automated assembly fixture without damaging the part surface.
Package Diverting
Executes a rapid 20 mm stroke to push small cardboard cartons from a main conveyor belt onto a secondary packaging lane.
Lab Sample Handling
Leverages the stainless steel build and 8 kg vertical lift capacity to move sample trays through damp or humid laboratory testing equipment.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SU the Right Cylinder?
When sizing this 20 mm bore, stepping down to a 16 mm version drops the 0.5 MPa push force to 100.5 N, whereas moving up to a 25 mm bore increases it to 245.3 N. The 20 mm stroke keeps the retracted length highly compact, minimizing rod bending risks even under lateral stress. Remember that a standard double-acting cylinder drifts if air pressure is lost or the valve is centered; the TPU bumpers only decelerate the end of stroke and will not lock the load. To hold a vertical position securely, add an external rod lock or a pilot-operated check valve. The included magnet pairs seamlessly with CMSG, DMSG or EMSG sensors, and the ISO 6432 mounting dimensions let you drop it straight into standard mini-cylinder brackets and clevises.
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 MI20X20SU 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 size is 1/8".
No, the fixed TPU bumper pads only decelerate the piston near the stroke end; they do not function as an adjustable air cushion or a braking lock. If air is lost, the piston will drift, so an external rod lock or pilot check valve is required to hold a vertical load securely.
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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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