
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SCA is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 15mm 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.
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 15 mm strokes with precision. 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 settings. Riveted construction keeps the body compact.
The built-in -S magnet supports CMSG, DMSG and EMSG switches for position sensing. Plan for roughly 94 N of actual work at 0.5 MPa, which translates to lifting about 8 kg vertically with a 2:1 safety margin. Fixed TPU bumper pads absorb the stroke-end impact, and the rear CA clevis allows pivoting mount installations.
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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.
| 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.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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.
Uses the 15 mm stroke to clamp small aluminium parts in CNC milling fixtures, relying on the 157 N push force for a firm grip.
Closes sealing jaws on vertical form-fill machines, where the stainless build resists washdown and the CA clevis accommodates jaw articulation.
Actuates short-stroke sorting gates on conveyor lines, with the CMSG sensor confirming the divert position.
When sizing this actuator, the Ø16 bore below offers 100.5 N push at 0.5 MPa, while the Ø25 bore above provides 245.3 N. This model includes the -S magnet for electronic or reed sensors. The CA rear pivot cover suits articulated mechanisms. Note that a standard cylinder drifts if air pressure drops; use a pilot-operated check valve or external rod lock to suspend a load safely.
Quick checklist
This Ø20 mm bore 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.
No, the fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. If air is lost, the piston will drift. To hold a vertical load, install an external rod lock or a pilot-operated check valve.
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