Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SU 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.
- BoreØ20 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles robust actuation in tight spaces. The Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its riveted round body relies on fixed TPU bumper pads to decelerate the stroke end, and the built-in piston magnet supports CMSG, DMSG and EMSG sensors.
The stainless barrel and rod resist mild corrosion, giving it an edge over painted alternatives in damp environments. With a 157 N push rating at 0.5 MPa, plan for a real working load of about 94 N. That same 0.5 MPa thrust translates to roughly 8 kg of vertical lift capacity when applying a 2:1 safety margin, helping you match the cylinder to actual part weights.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SU |
|---|---|
| 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.
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 MI20X50SU
| 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.
Where the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SU Is Used
Package Diverter
Pushes lightweight cardboard cartons on a packaging line using the 157 N thrust, with the 90 degree U cover keeping airlines neatly tucked away.
Lab Sample Ejector
Ejects plastic test tubes from a wet processing station, leveraging the stainless steel construction to withstand mild chemical splashes.
Small Part Sorter
Actuates a routing gate for electronic components, using the built-in magnet and a DMSG sensor to confirm the 50 mm stroke position.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X50SU the Right Cylinder?
When sizing this 50 mm stroke model, compare it against its neighbours: the smaller Ø16 bore yields 100.5 N push at 0.5 MPa, while the larger Ø25 bore provides 245.3 N. This SKU includes the U back cover, which orients the port 90 degrees to streamline tubing runs in confined machinery. Because the base MI uses fixed bumpers rather than an adjustable cushion, consider the MIC variant if your application demands variable end-of-stroke deceleration.
Note that a standard double-acting cylinder drifts if air pressure drops or the valve is centred, as the bumpers only soften impact rather than locking the rod. To suspend a load safely during an air loss event, integrate an external pilot-operated check valve or a dedicated rod lock. The included -S magnet enables position sensing, and the body accepts LB foot, FA flange, SDB pivot and TC trunnion mounts.
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 MI20X50SU FAQ
This Ø20 mm bore cylinder features a 1/8 inch 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 force of 32 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston at the stroke end and do not function as a brake. If air is lost, the rod will drift, so you must fit an external pilot check valve or rod lock to hold a vertical load safely.
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