Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SR
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SR 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 MI20X125SR
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles robust actuation tasks. The Ø20 mm round-body design features a riveted construction with a 1/8" air port and an M8x1.25 male rod thread. An integrated piston magnet (-S) allows direct mounting of CMSG, DMSG or EMSG sensors for position detection.
The stainless barrel and rod resist mild corrosion, making it superior to painted alternatives in damp environments. Fixed TPU bumper pads absorb end-of-stroke impact. For practical sizing, plan for roughly 94 N of usable work at 0.5 MPa, which means it can vertically lift about 8 kg safely with a 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SR Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SR |
|---|---|
| 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 MI20X125SR
| 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 MI20X125SR Is Used
Package Diverting Gate
Actuates a routing flap on a packaging conveyor to sort boxes weighing up to 8 kg smoothly.
Textile Loom Tensioner
Maintains consistent fabric tension in humid textile mills, leveraging the stainless rod for washdown resistance.
Pallet Label Applicator
Extends 125 mm to press labels onto pallet loads, using the integrated magnet for precise stroke-end confirmation.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125SR the Right Cylinder?
When sizing this 125 mm stroke model, note the Ø16 bore provides 100.5 N push while the Ø25 offers 245.3 N at 0.5 MPa, giving you clear scaling options if your payload shifts. Because the stroke is relatively long, minimize side loads to prevent rod bending and premature seal wear. The R back cover supplies an axial-in port orientation for neat tubing.
Remember that a standard cylinder drifts when air is lost or a valve is centered; the bumpers only decelerate the stroke end and do not function as a brake. To suspend a load securely, install an external rod lock or a pilot-operated check valve. This unit uses the ISO 6432 mounting interface, so it drops directly into standard mini-cylinder brackets and clevises.
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 MI20X125SR FAQ
This Ø20 mm bore cylinder features a 1/8" port and an M8x1.25 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.
Yes, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG and EMSG switches. The cylinder uses fixed TPU bumper pads to decelerate the stroke end; it does not have an adjustable air cushion.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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