Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225U 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 MI20X225U
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 1/8 inch port. The riveted barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp production areas. Because it follows ISO 6432 mounting dimensions, it drops directly into standard mini-cylinder brackets and clevises.
Plan for roughly 94 N of actual work at 0.5 MPa, which means it lifts about 8 kg vertically with a 2:1 safety margin. The rear U cover provides a 90-degree port orientation for tight machine layouts. Note that this SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without switching to the -S variant.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225U |
|---|---|
| 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 MI20X225U
| 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 MI20X225U Is Used
Package Diverter Arm
Pushes lightweight cardboard cartons on a packaging line using the 157 N thrust, with the 90-degree U cover keeping airlines flush against the conveyor frame.
Textile Loom Tensioner
Cycles the 225 mm stroke to position yarn guides in humid textile mills, relying on the stainless barrel to resist ambient moisture.
Bin Lid Actuator
Lifts an 8 kg hopper lid vertically on a bulk material bin, operating safely within the computed 2:1 vertical lift margin at 0.5 MPa.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X225U the Right Cylinder?
If 157 N push at 0.5 MPa is too much, the Ø16 bore steps down to 100.5 N; if you need more muscle, the Ø25 bore jumps to 245.3 N. The 225 mm stroke is well within the 500 mm maximum for this bore, but at this extension you must watch out for side loading and rod bending. Because this is a no-magnet SKU, position sensing is impossible here.
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 centres, the rod will drift and drop the load, so fit an external rod lock or pilot check valve for vertical holding. The U back cover simplifies perpendicular hose routing, while LB, FA, SDB and TC mounts remain available.
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 MI20X225U FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port is 1/8 inch and the male rod thread is M8x1.25.
No, this specific SKU lacks a piston magnet and cannot accept CMSG, DMSG or EMSG switches. You must select the MI20X225SU variant to enable magnetic sensing. The unit uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion.
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