Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55CA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55CA is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 55mm 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
- Stroke55 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55CA
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust actuation in tight spaces. The Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread, extending 55 mm on each cycle. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
Built with fixed TPU bumper pads to decelerate the stroke end, the riveted body drops directly into standard ISO 6432 mini-cylinder brackets and clevises. Plan for about 94 N of real work at 0.5 MPa to maintain a safe margin, which translates to lifting roughly 8 kg vertically. Note that this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without switching to the -S variant.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55CA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55CA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 55 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 MI20X55CA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×55 | 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 MI20X55CA Is Used
Package Diverter Gate
Pushes a lightweight routing flap on a packaging line, using the 55 mm stroke to redirect small cartons with reliable 157 N force.
Small Press Ejector
Kicks stamped metal parts out of a die bed, relying on the stainless build to withstand occasional cutting fluid spray.
Bin Lid Actuation
Pivots a CA-mounted clevis to open and close a heavy storage bin lid, safely lifting loads under the 8 kg vertical threshold.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55CA the Right Cylinder?
If 157 N of push is too much, step down to the Ø16 bore which provides 100.5 N at 0.5 MPa; if you need more muscle, the Ø25 bore pushes 245.3 N. Because this configuration includes a CA rear pivot cover, it is ideal for clevis mounting that accommodates slight angular misalignment. Remember that a plain cylinder drifts when air is lost or the valve is centred, so install an external rod lock or pilot check valve if you need to hold a vertical load. The 55 mm stroke is well within the 500 mm maximum, keeping rod bending stress minimal.
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 MI20X55CA FAQ
This double-acting cylinder uses a 1/8 inch 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. Its theoretical maximum force is 32 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet. To use CMSG, DMSG or EMSG switches, you must select the -S variant. The unit does feature a CA pivot back cover and fixed TPU bumper pads for stroke deceleration.
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