Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25U is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 25mm 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
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25U
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 25 mm strokes with efficiency. The riveted barrel and rod shrug off mild corrosion, making it superior to painted alternatives in damp environments. It features a 90-degree U back cover and a 1/8 inch port.
Because the 0.5 MPa output translates to roughly 8 kg of vertical lifting capacity with a 2:1 safety margin, you can confidently move lightweight actuators or gates. Fixed TPU bumper pads absorb the impact at stroke extremes without needing adjustment. Note this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 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 MI20X25U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MI20X25U Is Used
Gate Diversion
Pivots lightweight sorting flaps on packaging lines using its 8 kg safe vertical lift capacity and 25 mm stroke.
Lab Sample Ejector
Ejects small test tube racks from washdown stations, relying on the stainless steel rod to resist moisture.
Pneumatic Valve Trip
Triggers small process valves remotely where the 90-degree U cover optimizes port and mounting orientation.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25U the Right Cylinder?
When sizing this 20 mm bore, dropping down to a 16 mm version reduces the push force to 100.5 N at 0.5 MPa, while stepping up to a 25 mm bore increases it to 245.3 N. The compact 25 mm stroke keeps rod bending stress minimal even under lateral loads. Its ISO 6432 mounting dimensions allow it to drop directly into standard mini-cylinder brackets and clevises.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed TPU pads only soften the end-of-stroke impact rather than locking the rod. To suspend a load safely mid-air, integrate an external pilot-operated check valve or a dedicated rod lock.
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 MI20X25U FAQ
This 20 mm bore cylinder uses 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 of 32 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet option, so it cannot support CMSG, DMSG or EMSG switches. You would need the -S variant for position sensing, though this model still offers standard ISO 6432 mounting dimensions for easy bracket installation.
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