Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCALB
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCALB 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 MI20X400SCALB
Delivering 157 N of push force at 0.5 MPa, this stainless-steel round-body mini cylinder handles long 400 mm strokes with a rugged riveted construction. The Ø20 mm bore operates on a 1/8" port and integrates an LB foot mount alongside a CA pivot back cover for versatile installation. Because the piston carries a magnet, you can track position with CMSG, DMSG or EMSG switches.
The stainless barrel and rod shrug off mild corrosion, making it superior to painted alternatives in damp environments. Fixed TPU bumper pads absorb end-of-stroke impact without the tuning an adjustable cushion requires. For real work, plan for roughly 94 N of usable load at 0.5 MPa, which translates to lifting about 8 kg vertically with a safe 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCALB Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCALB |
|---|---|
| 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 MI20X400SCALB
| 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 MI20X400SCALB Is Used
Diverting Gate Actuator
Pushes a routing flap on a packaging conveyor over the 400 mm stroke, relying on the 157 N push force to overcome friction from accumulated cardboard cartons.
Vertical Parts Elevator
Lifts lightweight plastic totes in a humid warehouse using the stainless steel construction to resist moisture while moving an 8 kg payload per cycle.
Long-Reach Ejection Arm
Extends an ejection finger 400 mm to clear stamped metal parts from a press bed, using the LB foot mount to stabilize the long stroke.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCALB the Right Cylinder?
This 20 mm bore sits between the 16 mm (100.5 N push @0.5 MPa) and 25 mm (245.3 N push @0.5 MPa) sizes, giving you a clear upgrade path if your 8 kg lift requirement changes. The 400 mm stroke is substantial for a mini cylinder; ensure your guiding structure prevents side-load rod bending over that travel distance. The included LB foot bracket and CA rear clevis simplify mounting, while the internal magnet supports position sensing.
Remember that a standard double-acting cylinder drifts when air pressure drops or the valve centers. The TPU bumpers only decelerate the piston near the stroke end and will not function as a brake. To suspend a load safely during an air loss event, install 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 MI20X400SCALB FAQ
This 20 mm bore cylinder uses a 1/8" port. 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 body uses the ISO 6432 mounting interface, so it drops into standard mini-cylinder brackets and clevises. The -S suffix means it has an internal magnet ready for CMSG, DMSG or EMSG switches.
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1-Year Warranty
Covers non-human-caused product damage.
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