Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CA 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 MI20X45CA
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation with ease. The Ø20 mm bore uses a 1/8" air port and an M8x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, offering a real advantage over painted alternatives in damp or washdown environments. Fixed TPU bumper pads absorb the impact at stroke extremes, decelerating the piston smoothly without the complexity of adjustable cushioning.
For practical sizing, plan for roughly 94 N of actual work at 0.5 MPa, which translates to lifting about 8 kg vertically with a safe 2:1 margin. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position sensors. The built-in CA rear pivot cover allows direct clevis mounting, while the body conforms to ISO 6432 mounting dimensions for straightforward bracket integration.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CA |
|---|---|
| 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 MI20X45CA
| 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 MI20X45CA Is Used
Package Diverter Arm
Actuates a short 45 mm swing arm to sort light parcels on a packaging line, utilizing the 157 N push force to snap components into place rapidly.
Textile Loom Tensioner
Uses the CA pivot mount to maintain fabric tension in a humid manufacturing environment, leaning on the stainless steel rod to prevent mild corrosion.
Small Press Ejector
Kicks stamped micro-parts out of a die using the 131.9 N pull force at 0.5 MPa, relying on the fixed TPU bumpers to soften the ejection impact.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CA the Right Cylinder?
When sizing this 20 mm bore, the smaller Ø16 option provides 100.5 N of push at 0.5 MPa, whereas stepping up to the Ø25 yields 245.3 N, giving you a clear upgrade path if the 157 N rating is too tight. The 45 mm stroke keeps the rod compact, minimizing side-load bending moments, but for heavier off-center loads you should still verify guide alignment. The CA pivot back cover is ideal for articulating mechanisms.
Note that a standard double-acting cylinder like this will drift if air pressure drops or the valve is centered, as the TPU bumpers only soften the end-of-stroke impact and do not function as a brake. If your application requires the load to be held securely in place during an air loss event, you must add an external rod lock or a pilot-operated check valve. Furthermore, without the -S magnet option, this unit cannot support magnetic sensing.
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 MI20X45CA FAQ
This Ø20 mm bore cylinder features a 1/8" air port and an M8x1.25 male rod thread. 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.
Yes, the body uses ISO 6432 mounting dimensions, so it drops into standard mini-cylinder brackets and clevises, and it includes a CA rear pivot cover. However, because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG magnetic switches.
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