Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SCA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SCA is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 140mm 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
- Stroke140 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SCA
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles demanding compact automation. The Ø20 mm bore uses a 1/8" 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 environments. Fixed TPU bumper pads absorb stroke-end impact, while the built-in magnet (-S) supports CMSG, DMSG and EMSG sensors.
For practical sizing, plan for about 94 N of real work at 0.5 MPa, which means this actuator lifts roughly 8 kg vertically with a 2:1 safety margin. The 140 mm stroke is well within the 500 mm maximum, and the rear CA pivot cover provides a robust clevis mount for articulated mechanisms.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SCA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 140 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 MI20X140SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×140 | 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 MI20X140SCA Is Used
Package Diverter Gate
Actuates a routing flap on a packaging line, using the 8 kg safe lift capacity to swing heavy cardboard cartons into secondary lanes.
Lab Sample Ejection
Pushes processed specimen trays out of a wet testing station, where the stainless construction prevents corrosion from chemical splashes.
Pivot Arm Positioning
Leverages the rear CA clevis to drive a hinged sorting arm through a 140 mm arc, moving lightweight totes between workstations.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X140SCA the Right Cylinder?
When sizing this 157 N (0.5 MPa) unit, stepping down to a Ø16 bore yields 100.5 N, whereas a Ø25 bore provides 245.3 N. Because the CA rear clevis accommodates pivoting loads, ensure the side loading is minimized over the 140 mm stroke to prevent rod bending. The -S magnet enables position sensing with CMSG, DMSG or EMSG switches.
Remember that air pressure alone does not secure the piston if supply drops or the valve is centred; the rod will drift. The TPU bumpers only decelerate the end of travel and act as neither a brake nor a lock. To suspend a load safely, fit 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 MI20X140SCA FAQ
This Ø20 mm cylinder features a 1/8" port and an M8x1.25 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 of 32 kgf at 1.0 MPa.
Yes, the Ø20 mm bore adheres to ISO 6432 mounting dimensions, allowing it to drop into standard mini-cylinder brackets and clevises. Additionally, the -S suffix indicates a built-in magnet for direct mounting of CMSG, DMSG or EMSG reed and electronic sensors.
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