Airtac MI16-20 Stainless Steel Mini Cylinder MI20X240SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X240SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 240mm 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
- Stroke240 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X240SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 240 mm stroke with a Ø8 mm piston rod. The riveted stainless barrel and 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 keep airflow balanced for the 30-800 mm/s speed range.
Because it conforms to the ISO 6432 mounting interface, the body drops directly into standard mini-cylinder brackets and clevises. Plan for roughly 94 N of actual work at 0.5 MPa, which means it can safely lift about 8 kg vertically with a 2:1 safety margin. The built-in magnet (-S) supports CMSG, DMSG and EMSG switches, while the U back cover directs plumbing 90 degrees for tight layouts.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X240SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X240SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 240 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 MI20X240SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×240 | 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 MI20X240SU Is Used
Diverting Small Cartons
Pushes lightweight cardboard cartons on a packaging line using its 157 N thrust, with the 240 mm stroke clearing the belt width for full diversion.
Lab Sample Ejection
Ejects plastic sample trays from a testing carousel; the stainless construction withstands daily chemical wipe-downs in laboratory environments.
Parts Descending Ramp
Lowers small metal stampings down a gravity chute, using the 90-degree U cover port to keep airlines flush against the machine frame.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X240SU the Right Cylinder?
When sizing this 20 mm bore, stepping down to the Ø16 variant drops the 0.5 MPa push force to 100.5 N, whereas moving up to the Ø25 bore raises it to 245.3 N. The 240 mm stroke is well within the 500 mm maximum for this bore, but at this extension you must watch out for side loads and rod bending—keep the load guided to prevent premature seal wear. The U rear cover provides a 90-degree port orientation, and the included magnet enables position sensing.
Remember that the fixed TPU bumper pads only soften the impact at stroke end; they do not act as a brake. If your process cannot tolerate movement after a loss of air pressure or when a valve is centred, the piston will drift. To lock a load in place mid-stroke, fit an external rod lock or install 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 MI20X240SU 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. The air port is 1/8" and the male rod thread is M8x1.25.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the rod near the stroke end; they do not lock the load. Use an external rod lock or pilot check valve for holding.
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