Airtac MI16-20 Stainless Steel Mini Cylinder MI20X115SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X115SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 115mm 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
- Stroke115 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X115SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 115 mm stroke with a robust Ø8 mm piston rod. The riveted barrel and rod resist mild corrosion, making it highly suitable for damp production areas where painted steel quickly degrades. Its built-in piston magnet directly supports CMSG, DMSG, and EMSG switches for precise end-of-stroke detection.
Because the 1/8" port drives air efficiently across the 30-800 mm/s speed range, operators can confidently plan for a safe working load of about 94 N. This equates to lifting roughly 8 kg vertically with a 2:1 safety margin, ensuring reliable performance in dynamic handling tasks.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X115SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X115SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 115 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 MI20X115SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×115 | 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 MI20X115SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 157 N push force to redirect cartons weighing up to 8 kg at a 2:1 safety margin.
Lab Sample Ejection
Ejects processed sample trays from a wet chemical analyzer, leveraging the stainless-steel construction to withstand humid, mildly corrosive environments.
Tote Pusher Mechanism
Pushes empty totes into position on a gravity conveyor, utilizing the 115 mm stroke and U-style 90-degree rear pivot for a compact machine footprint.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X115SU the Right Cylinder?
When sizing this 20 mm bore unit, consider scaling down to the Ø16 class if your application only requires 100 N of push at 0.5 MPa, or stepping up to the Ø25 class for a substantial 245 N when heavier payloads are involved. The U-style rear cover provides a 90-degree mounting orientation, easily pairing with standard clevis brackets.
Note that the fixed TPU bumper pads only decelerate the piston near the stroke end; they do not function as a lock. If the mechanism must hold a vertical load during air loss or valve centering, the piston will drift, requiring an external rod lock or pilot-operated check valve. Additionally, the 115 mm stroke demands careful alignment to prevent rod bending under side loads.
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 MI20X115SU FAQ
This 20 mm bore cylinder features a 1/8" air port and an M8x1.25 male rod thread. 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 force of 32 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. The U rear cover provides a 90-degree pivot mounting interface, and the cylinder body conforms to ISO 6432 mounting dimensions for standard mini-cylinder brackets.
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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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