Airtac MI16-20 Stainless Steel Mini Cylinder MI20X70SUG
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X70SUG is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 70mm 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
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X70SUG
Delivering 157 N of push force at 0.5 MPa, this double-acting round-body mini cylinder is built with a stainless-steel barrel and rod to resist mild corrosion in damp or washdown environments. The Ø20 mm bore uses an M8x1.25 male rod thread and a 1/8" port, while the 70 mm stroke operates at speeds between 30 and 800 mm/s. Fixed TPU bumper pads absorb the impact at stroke ends, decelerating the piston smoothly without the complexity of adjustable cushioning.
Because it conforms to ISO 6432 mounting dimensions, this unit drops directly into standard mini-cylinder brackets and clevises. For practical sizing, plan for a safe working load of about 94 N, which means you can reliably lift a 8 kg part vertically with a 2:1 safety margin. The built-in piston magnet (-S) supports CMSG, DMSG and EMSG position switches, and the U back cover provides a 90-degree mounting option for tight spaces.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X70SUG Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X70SUG |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 70 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 MI20X70SUG
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×70 | 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 MI20X70SUG Is Used
Package Diverter Gate
Actuates a 90-degree routing flap on a packaging line, using the 70 mm stroke to push cardboard cartons onto an adjacent belt at 0.5 MPa.
Lab Sample Ejection
Ejects processed fluid vials from a testing carousel, where the stainless steel construction holds up against occasional chemical splashes during washdown.
Small Part Seating
Presses lightweight plastic bushings into housings on an assembly fixture, applying a controlled 94 N of safe working force to seat components without cracking them.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X70SUG the Right Cylinder?
If you need less force, the Ø16 bore provides 100.5 N of push at 0.5 MPa; stepping up to the Ø25 bore yields 245.3 N. This 70 mm stroke is well within the 500 mm maximum for the Ø20 bore, keeping rod bending stress low. The U-style 90-degree rear cover and G port thread offer flexible plumbing and mounting orientations.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed TPU pads only soften the end-of-stroke impact rather than locking the load. To suspend a vertical load safely during an air failure, add an external rod lock or a pilot-operated check valve to the circuit.
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 MI20X70SUG FAQ
This Ø20 mm bore cylinder has a 1/8" port. At 0.5 MPa it generates 157 N of push and 131.9 N of pull. 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 designed for CMSG, DMSG or EMSG reed and electronic switches. The U back cover provides a 90-degree pivot mount, and the body uses standard ISO 6432 mounting dimensions for easy bracket interchange.
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