Airtac MI16-20 Stainless Steel Mini Cylinder MI20X35SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X35SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 35mm 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
- Stroke35 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X35SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation with ease. The Ø20 mm bore operates on a 1/8 inch port, and the integrated piston magnet (indicated by the -S suffix) directly supports CMSG, DMSG, and EMSG reed or electronic switches for precise position detection.
Its riveted stainless barrel and rod resist mild corrosion, making it superior to painted alternatives in damp or washdown environments. The fixed TPU bumper pads decelerate the stroke end, and with a 35 mm stroke, it is well-suited for high-cycle clamping. Plan for roughly 94 N of actual work at 0.5 MPa, which means it can vertically lift about 8 kg with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X35SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X35SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 35 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 MI20X35SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×35 | 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 MI20X35SU Is Used
Short-Stroke Clamping
Ideal for securing aluminium extrusions during CNC machining, using its 35 mm stroke and 157 N push force to hold parts firmly without deflection.
Carton Flap Folding
Drives compact folder mechanisms on packaging lines, where the stainless build resists washdown moisture and the 90-degree U cover saves axial space.
Diverter Gate Actuation
Pivots lightweight routing gates on conveyor systems, lifting approximately 8 kg loads vertically while fitting into tight transfer zones.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X35SU the Right Cylinder?
When sizing this 20 mm bore unit, consider the neighbouring capacities: a 16 mm variant offers 100.5 N push at 0.5 MPa for lighter loads, while stepping up to a 25 mm bore provides 245.3 N for heavier demands. The U suffix denotes a 90-degree rear cover, optimizing port and mounting orientation for tight spaces. Because the stroke is a short 35 mm, side-load stress on the Ø8 mm rod is minimal, but ensure alignment to prevent premature seal wear.
This model conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises. Remember that the fixed TPU bumpers only soften end-of-stroke impacts; they do not function as a lock. If your application must prevent drift on air loss or valve centering, install an external rod lock or 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 MI20X35SU FAQ
This double-acting cylinder uses a 1/8 inch port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. However, it uses fixed TPU bumper pads for deceleration only; it will drift if air is lost, so you need an external rod lock or pilot check valve to hold a load.
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