Airtac MI16-20 Stainless Steel Mini Cylinder MI20X85SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X85SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 85mm 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
- Stroke85 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X85SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding 85 mm stroke tasks. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Its riveted stainless barrel and rod resist mild corrosion, outperforming painted alternatives in damp environments. The built-in piston magnet supports CMSG, DMSG and EMSG switches for position sensing.
Featuring a 90-degree U back cover for flexible port orientation, it integrates easily via standard ISO 6432 mounting dimensions. Fixed TPU bumper pads absorb stroke-end impact without adjustable cushioning. Plan for roughly 94 N of actual work at 0.5 MPa, which means it lifts about 8 kg vertically with a safe 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X85SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X85SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 85 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 MI20X85SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×85 | 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 MI20X85SU Is Used
Package Diverter Gate
Actuates a routing flap on a packaging line, using the 85 mm stroke to push cartons into secondary lanes without stalling the belt.
Textile Loom Tensioner
Maintains consistent yarn tension in humid textile facilities, leveraging the stainless steel rod to resist mild corrosion and washdown.
Bin Lid Opener
Lifts an 8 kg access hatch on an automated dispensing hopper, utilizing the 90-degree U back cover for a compact side-mounted pivot.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X85SU the Right Cylinder?
When sizing this 85 mm stroke model, the smaller Ø16 bore provides 100.5 N push at 0.5 MPa, while the larger Ø25 bore offers 245.3 N if you need significantly more thrust. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG or EMSG sensors for end-of-stroke detection. The U-style back cover dictates a 90-degree rear orientation for your plumbing.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed TPU bumpers only decelerate the stroke end rather than locking the rod. To suspend a vertical load safely during an air failure, add an external rod lock or a pilot-operated check valve to your assembly.
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 MI20X85SU FAQ
This double-acting cylinder features a 1/8" 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.
No, the base MI relies on fixed TPU bumper pads to decelerate the stroke end rather than an adjustable air cushion. For adjustable cushioning, look at the MIC variant. This model does conform to ISO 6432 mounting dimensions and includes a magnet for CMSG, DMSG or EMSG sensors.
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