Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCA is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 400mm 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
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCA
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles long 400 mm strokes with ease. Its 1/8" port and M8x1.25 male rod thread ensure solid pneumatic integration, while the built-in piston magnet allows seamless fitting of CMSG, DMSG or EMSG switches for position sensing.
The 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, and the rear CA clevis supports pivot mounting. For practical sizing, plan for around 94 N of actual work at 0.5 MPa, which means it can comfortably lift an 8 kg part vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 400 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 MI20X400SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×400 | 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 MI20X400SCA Is Used
Diverting Gate Actuation
Pivots a sorting flap on a packaging line conveyor, using the CA clevis to swing the 400 mm stroke and push parcels weighing up to 8 kg into the correct lane.
Lab Sample Ejection
Extends to push processed specimen trays out of a humidity chamber, where the stainless steel construction withstands the damp environment and frequent washdowns.
Vertical Tray Lifting
Raises lightweight component trays between conveyor tiers, leveraging the 157 N push force to elevate roughly 8 kg loads safely within a 2:1 mechanical margin.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCA the Right Cylinder?
When sizing this 20 mm bore unit, stepping down to a 16 mm bore drops the 0.5 MPa push force to 100.5 N, whereas moving up to a 25 mm bore raises it to 245.3 N. The 400 mm stroke is substantial for this profile; ensure your guiding structure prevents rod bending and side loads. Because the CA rear clevis allows pivoting, check that your linkage geometry accommodates the long extension without binding.
Remember that venting or centering the valve causes the piston to drift, as the fixed bumpers only decelerate the end of travel and act as neither a lock nor a brake. To suspend a load safely during air loss, add an external rod lock or a pilot-operated check valve. The included -S magnet enables electronic or reed sensors, a necessity for automated sequencing on long strokes.
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 MI20X400SCA FAQ
This 20 mm bore cylinder features a 1/8" port and an M8x1.25 male rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum force of 32 kgf at 1.0 MPa.
Yes, the Ø20 bore uses standard ISO 6432 mounting dimensions, so it drops directly into standard mini-cylinder brackets and clevises. Additionally, the -S suffix indicates a built-in magnet, allowing you to mount CMSG, DMSG or EMSG reed and electronic switches along the body for precise stroke detection.
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