Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SU 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 MI20X350SU
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 Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its riveted 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 end, while the built-in magnet (-S) supports CMSG, DMSG and EMSG sensors.
For practical sizing, plan for about 94 N of real work at 0.5 MPa, which means it can comfortably lift an 8 kg part vertically with a 2:1 safety margin. The U-style rear cover provides a 90-degree mounting orientation, making it straightforward to integrate into tight machinery layouts.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SU |
|---|---|
| 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 MI20X350SU
| 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 MI20X350SU Is Used
Diverting Flap Control
Actuates routing flaps on packaging lines, using the 350 mm stroke to shift products between parallel conveyor belts.
Vertical Carton Pusher
Pushes lightweight cardboard cartons from a staging roller table, relying on the 8 kg safe vertical lift capacity.
Sample Tube Ejection
Ejects filled test tubes from a filling carousel in laboratory automation, benefiting from the stainless build for clean environments.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SU the Right Cylinder?
If 157 N at 0.5 MPa is too much, step down to the Ø16 bore which outputs 100.5 N; if you need more power, the Ø25 bore offers 245.3 N. Because this unit lacks a position lock, the piston will drift if air pressure drops or the valve is centred—install an external rod lock or pilot check valve to suspend a load safely. The 350 mm stroke is well within the 500 mm maximum for this bore, but at full extension you should minimize side-loading to prevent rod bending.
The included -S magnet enables CMSG, DMSG and EMSG switches for end-of-stroke detection. You can utilize the ISO 6432 mounting interface for standard mini-cylinder brackets, and the U back cover allows for straightforward 90-degree pivot mounting.
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 MI20X350SU 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 inch.
No, this model uses fixed TPU bumper pads that decelerate the piston near the stroke end. It does not have an adjustable air cushion. For adjustable cushioning, look at the MIC variant. The -S magnet on this unit allows CMSG, DMSG and EMSG sensors.
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Covers non-human-caused product damage.
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