Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SCA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SCA 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 MI20X125SCA
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 125 mm stroke with ease. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Its stainless barrel and rod resist 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, while the riveted construction keeps the unit compact.
Because the -S suffix equips the piston with a magnet, you can mount CMSG, DMSG or EMSG switches for position sensing. For real work at 0.5 MPa, plan for a safe load of about 94 N. In vertical lifting, that translates to raising roughly 8 kg safely with a 2:1 margin. The built-in CA pivot clevis simplifies rear mounting, and the ISO 6432 dimensions let you drop it straight into standard mini-cylinder brackets.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SCA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SCA |
|---|---|
| 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 MI20X125SCA
| 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 MI20X125SCA Is Used
Package Diverter
Pushes lightweight cardboard cartons on a packaging line using its 8 kg vertical lift capacity and 125 mm travel.
Textile Loom Tensioner
Maintains thread tension via the CA pivot clevis, handling damp environments reliably through its stainless construction.
Bin Lid Actuation
Opens and closes access hatches on storage bins, relying on the -S magnet to trigger DMSG sensors at full extension.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SCA the Right Cylinder?
If you need less force, the Ø16 bore provides 100.5 N push at 0.5 MPa, whereas stepping up to the Ø25 bore yields 245.3 N. This Ø20 model hits a solid middle ground for 125 mm travel. Remember that a standard cylinder drifts if air pressure drops or the valve centres; the TPU bumpers only decelerate the end of stroke and will not lock the load. Use an external rod lock or pilot check valve for secure holding.
The CA rear clevis suits pivoting loads, and you can pair it with LB foot, FA flange or TC trunnion mounts. For high-speed cycles requiring adjustable air cushioning, consider the MIC variant instead of this fixed-bumper build.
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 MI20X125SCA 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".
No, the piston will drift. The fixed TPU bumper pads only decelerate the rod near the stroke end; they do not act as a brake. You must add an external rod lock or pilot-operated check valve to hold a suspended load.
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