
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SCM is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 50mm 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 is built for demanding 20 mm bore tasks. The Ø8 mm piston rod features an M8x1.25 male thread, and air connects via a 1/8" port. Riveted stainless construction resists mild corrosion and washdowns better than painted alternatives. The built-in magnet supports CMSG, DMSG, and EMSG switches for position sensing.
For practical sizing, plan for a safe working load of roughly 94 N, which equates to lifting about 8 kg vertically with a 2:1 safety margin. The CM round end back cover pairs with the 50 mm stroke to keep the envelope compact. Fixed TPU bumper pads absorb stroke-end impacts, operating reliably between -20 and +70 C at speeds of 30-800 mm/s.
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SCM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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. |
| ×50 | 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.
Pushes light cardboard cartons on a packaging line using its 8 kg vertical lift capacity and 50 mm stroke to actuate routing flaps.
Maintains consistent yarn tension in humid textile manufacturing thanks to the corrosion-resistant stainless steel barrel and rod.
Ejects moulded plastic components from a machining zone, relying on the 157 N push force and fixed TPU bumpers to absorb the stroke impact.
When sizing this 20 mm bore actuator, compare it against its neighbours: a 16 mm bore yields 100.5 N of push at 0.5 MPa, while stepping up to a 25 mm bore provides 245.3 N. Choose this model when your application sits comfortably in the 94 N safe working range. Because the base MI uses fixed TPU bumpers rather than an adjustable air cushion, switch to the MIC variant if your cycle demands high-speed end-deceleration.
The -S magnet enables CMSG, DMSG, and EMSG electronic or reed sensors. Utilizing the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets and clevises. Remember that a standard double-acting cylinder drifts when air is lost or the valve is centred; the bumpers only soften the stroke end. To suspend a load safely, install an external rod lock or a pilot-operated check valve.
Quick checklist
This 20 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.
No, a standard double-acting MI cylinder will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the piston near the stroke end; they do not act as a brake. You must use an external rod lock or pilot check valve to hold a suspended load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.