Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCATC
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCATC is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 40mm 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
- Stroke40 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCATC
Generating 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" port and an M8x1.25 male rod thread. Its riveted stainless barrel and rod resist mild corrosion, offering a real advantage 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.
Because the 157 N rating is theoretical, plan for a safe working load of roughly 94 N at 0.5 MPa. This translates to lifting about 8 kg vertically with a 2:1 safety margin. The included CA rear pivot cover and TC trunnion mounting make it ideal for articulated mechanisms requiring precise angular alignment.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCATC Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCATC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 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 MI20X40SCATC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 MI20X40SCATC Is Used
Package Diverter Flap
Pivots a sorting gate on a packaging line using the TC trunnion mount, relying on the 157 N push force to deflect light cardboard cartons at high speed.
Textile Loom Tensioner
Modulates yarn tension via the CA clevis rear cover, using the 131.9 N pull force at 0.5 MPa to maintain consistent thread feed in a humid manufacturing environment.
Bin Lid Actuation
Lifts access hatches on material handling bins, where the stainless-steel rod withstands occasional washdowns and the 40 mm stroke provides compact opening clearance.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCATC the Right Cylinder?
When sizing this unit, the smaller Ø16 bore yields 100.5 N of push at 0.5 MPa, whereas the larger Ø25 bore provides 245.3 N, letting you step up if the 8 kg vertical lift capacity is insufficient. The 40 mm stroke is well within the 500 mm maximum, keeping the Ø8 mm rod rigid with minimal side-load bending risk.
Remember that venting the air supply causes the piston to drift, as the fixed bumpers only decelerate the end of travel without locking the load. To suspend a weight securely during an air loss event, fit an external rod lock or a pilot-operated check valve. Position detection is fully enabled by the internal magnet, which pairs directly with CMSG, DMSG or EMSG switches.
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 MI20X40SCATC FAQ
This Ø20 mm bore cylinder features a 1/8" air 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 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 piston magnet, making it fully compatible with CMSG, DMSG and EMSG reed or electronic switches.
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