Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SUTC
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SUTC is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 125mm 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
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SUTC
Generating 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles 125 mm strokes with a compact riveted round body. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Its stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning.
Because the bore falls within the Ø8-Ø25 range, it shares the ISO 6432 mounting interface, sliding directly into standard mini-cylinder brackets and clevises. The internal piston magnet supports CMSG, DMSG and EMSG switches for position sensing. For real-world sizing, plan for roughly 94 N of usable work at 0.5 MPa, which translates to lifting about 8 kg vertically with a safe 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SUTC Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SUTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 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 MI20X125SUTC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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 MI20X125SUTC Is Used
Package Diverter Gate
Pushes lightweight cardboard cartons on a packaging line using 157 N of thrust at 0.5 MPa, with the TC trunnion accommodating the pivot arc.
Lab Sample Ejection
Ejects plastic specimen trays from a damp testing chamber, leveraging the stainless steel rod to resist mild corrosion during frequent washdowns.
Small Part Sorting
Actuates a 125 mm sorting flap for electronic components, using the built-in magnet to trigger DMSG sensors for precise end-position confirmation.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SUTC the Right Cylinder?
If 157 N of push at 0.5 MPa feels excessive, the Ø16 bore steps down to 100.5 N, while the Ø25 bore scales up to 245.3 N for heavier cycles. This specific SKU includes a U-type 90-degree rear cover and a TC trunnion mount, demanding precise alignment to avoid binding. Keep in mind that venting the air or centering the valve causes the rod to drift, as the TPU bumpers only soften the end stops rather than locking the load. To suspend a weight securely mid-stroke, fit an external rod lock or a pilot-operated check valve. The 125 mm travel length also warrants careful guidance to prevent rod bending under lateral stress.
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 MI20X125SUTC FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M8x1.25.
No, it uses fixed TPU bumper pads to decelerate the stroke end rather than an adjustable air cushion. Additionally, it cannot hold a load if air pressure is lost; the piston will drift. Use an external rod lock or pilot check valve for secure load holding.
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