Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SUG
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SUG is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 50mm 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
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SUG
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 uses a 1/8" 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 environments. The built-in piston magnet allows direct mounting of CMSG, DMSG or EMSG switches for position sensing.
For practical sizing, plan for a safe working load of about 94 N, which means it can comfortably lift an 8 kg part vertically with a 2:1 safety margin. The U back cover provides a 90-degree port orientation for tight routing, while fixed TPU bumper pads decelerate the piston at stroke end. It conforms to ISO 6432 mounting dimensions, dropping easily into standard mini-cylinder brackets.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SUG Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SUG |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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 MI20X50SUG
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MI20X50SUG Is Used
Package Diverting Gate
Actuates a lightweight routing flap on a packaging conveyor, using the 157 N push force to redirect cartons at 30-800 mm/s.
Vertical Parts Lift
Raises small electronic components 50 mm out of a fixture, safely lifting an 8 kg mass with a 2:1 safety margin.
Lab Dispenser Clamp
Holds a fluid dispensing head in a humid laboratory setting, where the stainless steel barrel prevents mild corrosion.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SUG the Right Cylinder?
When sizing this 50 mm stroke model, verify your motion requirements against the 157 N push and 131.9 N pull figures at 0.5 MPa. If your application needs less force, stepping down to a Ø16 bore provides 100.5 N of push, while moving up to a Ø25 bore yields 245.3 N. Because the -S magnet is present, you can fit CMSG, DMSG or EMSG sensors directly. For mounting flexibility, this unit accepts LB foot, FA flange, SDB pivot and TC trunnion brackets alongside the U 90-degree back cover.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centred. The TPU bumpers only soften the stroke-end impact and will not lock the rod. If your assembly must hold a vertical load during an air failure, install an external rod lock or a pilot-operated check valve. At a 50 mm stroke, side-load stress on the Ø8 mm rod is minimal, but always ensure the load moves parallel to the cylinder axis.
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 MI20X50SUG FAQ
This Ø20 mm bore cylinder features a 1/8" port (G thread option present) and an M8x1.25 male rod thread. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa, push is 219.8 N and pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG and EMSG switches. For end-of-stroke deceleration, it relies on fixed TPU bumper pads. These pads absorb impact but are not an adjustable air cushion. For adjustable cushioning, look at the MIC variant.
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