Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCMLB
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCMLB 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 MI20X400SCMLB
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding 400 mm linear movements. The Ø20 mm bore uses a 1/8 inch 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 impacts to protect your mechanism.
For practical sizing, plan for about 94 N of real work at 0.5 MPa, which translates to safely lifting an 8 kg load vertically with a 2:1 margin. The built-in piston magnet supports CMSG, DMSG and EMSG switches for position detection. Because it follows ISO 6432 mounting dimensions, this unit drops directly into standard mini-cylinder brackets and clevises.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCMLB Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCMLB |
|---|---|
| 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 MI20X400SCMLB
| 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 MI20X400SCMLB Is Used
Carton Diverting Gate
Actuates a routing flap on a packaging conveyor, using the 400 mm stroke to shift parcels between lanes while the stainless body withstands humid warehouse air.
Textile Beam Pusher
Deploys the full 400 mm travel to index heavy fabric beams into a winding machine, relying on the 157 N push force to overcome initial rolling resistance.
Lab Sample Transport
Moves sample racks between testing stations in a washdown laboratory setting, where the rolled stainless construction prevents corrosion from chemical cleaning agents.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400SCMLB the Right Cylinder?
When sizing this 400 mm stroke unit, compare it against adjacent bores: the smaller Ø16 generates 100.5 N push, while the larger Ø25 yields 245.3 N at 0.5 MPa. This model includes an LB foot mount and a CM round rear cover for stable base mounting. The extended 400 mm travel demands careful alignment to prevent rod bending and premature seal wear from side loads.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed TPU bumpers only decelerate the stroke end and act as neither a lock nor a brake. To suspend a vertical 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 MI20X400SCMLB FAQ
This Ø20 mm bore cylinder features a 1/8 inch 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.
The fixed TPU bumper pads only decelerate the piston near the stroke end and do not function as a brake, so the rod will drift if air is lost; use a pilot check valve for holding. The included magnet (-S) allows direct mounting of CMSG, DMSG and EMSG switches for position sensing.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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