Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SCM
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SCM is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 225mm 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
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SCM
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 225 mm stroke with a Ø8 mm piston rod. The riveted barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp production areas. Its 1/8" port and M8x1.25 male rod thread keep pneumatic and mechanical integration simple.
Featuring the ISO 6432 mounting interface, the body drops directly into standard mini-cylinder brackets and clevises. The built-in magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing, while the round CM back cover offers a clean rear profile. For practical sizing, plan for a safe working load of about 94 N, which means it can vertically lift roughly 8 kg with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SCM Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SCM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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 MI20X225SCM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MI20X225SCM Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 157 N push force to redirect boxes weighing up to 8 kg smoothly along the 225 mm travel path.
Textile Loom Tensioner
Positions a tensioning roller in a humid textile manufacturing environment, where the stainless steel barrel resists mild corrosion from ambient moisture.
Small Parts Ejector
Pushes completed plastic mouldings out of a machining cell, relying on the CMSG sensor signal to confirm the full 225 mm ejection stroke before the next cycle.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225SCM the Right Cylinder?
When sizing this 20 mm bore, 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. This model includes the -S magnet for CMSG/DMSG/EMSG sensors and uses a CM round back cover. The 225 mm stroke is well within the 500 mm maximum, but at this length side-load forces can bend the rod; ensure the load is guided to prevent premature wear.
Remember that the fixed TPU bumper pads only decelerate the piston near the stroke end and do not act as a brake. If air pressure drops or the valve is centred, the piston will drift and cannot hold a load. To maintain vertical position, 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 MI20X225SCM FAQ
This 20 mm bore cylinder features a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 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 locking brake. If air is lost, the piston will drift, so an external rod lock or pilot check valve is required for vertical load holding.
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