Airtac MI16-20 Stainless Steel Mini Cylinder MI20X75SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X75SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 75mm 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
- Stroke75 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X75SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel 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 round body and stainless barrel shrug off mild corrosion, outperforming painted alternatives in damp or washdown settings. The U back cover provides a 90-degree port orientation for tight machinery layouts.
Because it carries the -S suffix, a built-in piston magnet enables CMSG, DMSG or EMSG switches for position sensing. Fixed TPU bumper pads absorb end-of-stroke impact without the tuning an adjustable cushion demands. In practical terms, plan for a safe working load of about 94 N, which means it lifts roughly 8 kg vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X75SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X75SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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 MI20X75SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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 MI20X75SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 75 mm stroke to push cartons onto a secondary belt with reliable 157 N force.
Small Parts Ejection
Ejects machined plastic components from a mould cavity, where the stainless build resists occasional coolant mist and the U cover simplifies hose routing.
Bin Lid Lifting
Raises and lowers lightweight access hoppers, comfortably lifting 8 kg lids vertically while the integrated magnet confirms closure via a DMSG sensor.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X75SU the Right Cylinder?
If 131.9 N of pull at 0.5 MPa is insufficient, the Ø25 bore offers 206.1 N, while the Ø16 drops to 86.4 N for lighter duties. The 75 mm stroke is well within the 500 mm maximum, keeping rod bending stress low. The ISO 6432 mounting dimensions let you drop this cylinder into standard mini-cylinder brackets and clevises easily.
Remember that venting the air or centering the valve lets the piston drift; the TPU bumpers only decelerate the stroke end and never act as a brake. To suspend a load safely, fit an external rod lock or a 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 MI20X75SU FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. This Ø20 mm bore uses a 1/8" air port.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper pads only decelerate the stroke end and do not function as a locking brake. You must add an external rod lock or pilot check valve to hold a suspended load.
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