Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SUH
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SUH is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 30mm 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
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SUH
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 30 mm strokes with precision. The riveted barrel and rod resist mild corrosion, making it superior to painted alternatives in damp environments. Because it carries the -S suffix, a built-in piston magnet enables direct mounting of CMSG, DMSG, or EMSG reed and electronic switches for position sensing. The -H seal option equips the unit with high-temperature Viton elastomers, extending service life in heated surroundings.
Designed around the ISO 6432 mounting interface, the 20 mm bore drops seamlessly into standard mini-cylinder brackets and clevises. It breathes through a 1/8" port and features a U-type back cover that orients the rear port 90 degrees to the actuator axis. Instead of an adjustable air cushion, fixed TPU bumper pads absorb the impact at the stroke extremes. For practical sizing, plan for roughly 94 N of usable work at 0.5 MPa, which translates to lifting an 8 kg part vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SUH Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SUH |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 MI20X30SUH
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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 MI20X30SUH Is Used
Gate Diverters
Shifts lightweight plastic guide flaps on packaging conveyor sorters using 157 N of push force at 0.5 MPa over a rapid 30 mm travel.
Lab Oven Doors
The -H Viton seals tolerate heated lab environments, while the stainless body resists moisture when opening small inspection hatches.
Bin Ejectors
Knocks small component bins off an assembly line pallet using the 90-degree U rear port to keep airlines neatly tucked away.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SUH the Right Cylinder?
When sizing this 30 mm stroke actuator, compare it against its neighbors: a 16 mm bore yields 100.5 N of push at 0.5 MPa, while stepping up to a 25 mm bore provides 245.3 N. This 20 mm model sits perfectly in the middle for moderate force needs. The U-type back cover simplifies plumbing by turning the air supply perpendicular to the body. If your mechanism loses air or the valve centers, the piston will drift; the TPU bumpers only decelerate the end of stroke and act as neither a lock nor a brake. To suspend a load safely, integrate an external rod lock or a pilot-operated check valve into your circuit. For high-speed cycling that generates significant kinetic energy, consider the MIC variant which features a true adjustable air cushion.
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 MI20X30SUH FAQ
The 20 mm bore generates 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa. Air is supplied through a 1/8" port.
No, the piston will drift if air is lost or the directional valve centers. The fixed TPU bumper pads only soften the stroke end and do not function as a braking lock. You must add an external rod lock or pilot check valve to hold a load.
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1-Year Warranty
Covers non-human-caused product damage.
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