Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 225mm 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
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 225 mm stroke with ease. The Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning.
With the built-in -S magnet, you can mount CMSG, DMSG, or EMSG switches for position sensing. The U back cover provides a 90-degree mounting orientation, and the ISO 6432 mounting interface ensures it drops right into standard mini-cylinder brackets. For practical sizing, plan for a safe working load of roughly 94 N, which means it can lift about 8 kg vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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 MI20X225SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MI20X225SU Is Used
Package Diverting Gate
Pushes lightweight cardboard cartons on a packaging line using its 8 kg vertical lift capacity and 225 mm reach.
Textile Loom Tensioner
Maintains thread tension in humid textile facilities where the stainless steel barrel prevents mild corrosion.
Bin Lid Actuation
Swings a heavy hopper lid open via the 90-degree U back cover, leveraging 157 N of push at 0.5 MPa.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SU the Right Cylinder?
When sizing this actuator, the Ø16 bore below offers 100.5 N of push at 0.5 MPa, while the Ø25 bore above steps up to 245.3 N. This 157 N model sits perfectly in the middle for medium-duty tasks. Because the 225 mm stroke is relatively long for a mini cylinder, be careful to avoid side loads that could bend the Ø8 mm piston rod. The ISO 6432 dimensions make physical bracket interchangeability straightforward.
Remember that a standard double-acting cylinder like this will drift if air pressure drops or the valve is centred; the TPU bumpers only soften the end of stroke and act as neither a lock nor a brake. To suspend a load safely mid-cycle, add 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 MI20X225SU FAQ
This double-acting cylinder pushes with 157 N and pulls with 131.9 N at 0.5 MPa. 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. It features a 1/8 inch air port.
The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG switches. However, it only has fixed TPU bumper pads for end-of-stroke deceleration; it does not have an adjustable air cushion. For adjustable cushioning, look at the MIC variant.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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