Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 45mm 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
- Stroke45 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45SU
Generating 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, while the built-in magnet (-S) enables direct mounting of CMSG, DMSG or EMSG switches for position sensing.
Its riveted round body and stainless rod shrug off mild corrosion, making it superior to painted alternatives in damp environments. The 45 mm stroke strikes a balance for short movements, and the U-style rear cover provides a 90-degree port orientation for tight routing. Plan for a safe working load of roughly 94 N, which means it can reliably lift about 8 kg vertically when applying a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 45 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 MI20X45SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×45 | 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 MI20X45SU Is Used
Package Diverting Gate
Actuates a lightweight routing flap on a packaging conveyor, using the 157 N push force to redirect small cartons without stalling.
Clamping Small Housings
Secures aluminum die-cast parts during a CNC drilling cycle, where the 45 mm stroke provides rapid clamping and retraction.
Vertical Parts Lift
Raises delicate electronic trays between conveyor tiers; the stainless build resists humidity while safely lifting around 8 kg.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45SU the Right Cylinder?
When sizing this actuator, the Ø16 mm bore below offers 100.5 N of push at 0.5 MPa, whereas the Ø25 mm bore above steps up to 245.3 N, giving you clear boundaries if your payload shifts. The 45 mm stroke is well within the 500 mm maximum, keeping the rod robust against bending. Because the U cover rotates the port 90 degrees, ensure your manifold layout accommodates the side exit.
Remember that the fixed TPU bumper pads only soften the impact at stroke end; they do not lock the piston. If your application must hold a vertical load when air pressure drops or the valve centers, you must add an external rod lock or a pilot-operated check valve to prevent drift.
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 MI20X45SU FAQ
This double-acting cylinder features a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
Yes, the included -S magnet allows CMSG, DMSG and EMSG switches for sensing. The U back cover provides a 90-degree port orientation, and the body conforms to ISO 6432 mounting dimensions for standard mini-cylinder brackets.
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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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