Airtac MI16-20 Stainless Steel Mini Cylinder MI20X185U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X185U is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 185mm 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
- Stroke185 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X185U
Generating 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 185 mm stroke with a 1/8" air port. The Ø20 mm bore and M8x1.25 male rod thread provide a robust interface for medium-duty pneumatics. Its stainless barrel and piston rod naturally resist mild corrosion, giving it a real edge over painted-steel or aluminium minis in damp, food-adjacent, or outdoor environments. Fixed TPU bumper pads absorb the impact at stroke extremes, decelerating the piston without the complexity of adjustable cushioning.
For practical sizing, plan for a safe working load of about 94 N, which is roughly 60% of the 0.5 MPa push rating. In vertical lift setups, this translates to lifting about 8 kg safely with a 2:1 margin. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. The U-style back cover provides a 90-degree port orientation, simplifying hose routing in tight machinery.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X185U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X185U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 185 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 MI20X185U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×185 | 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 MI20X185U Is Used
Package Deflector
Pushes diverting gates on packaging lines, using the 157 N push force to reliably redirect medium-weight cartons without stalling.
Textile Loom Tensioner
Maintains consistent material tension in damp textile manufacturing environments, leveraging the stainless-steel rod to resist humidity and lint.
Bin Lid Actuator
Opens and closes 8 kg industrial storage bin lids vertically, matching the computed 2:1 safety margin lift capacity perfectly.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X185U the Right Cylinder?
When sizing this 185 mm stroke model, verify your load against the 131.9 N pull force at 0.5 MPa. If your application requires less energy, the adjacent Ø16 bore offers 100.5 N push, while stepping up to the Ø25 bore yields 245.3 N for heavier resistance. The 185 mm travel length demands attention to side-load conditions; ensure your guiding structure prevents rod bending over the extended distance. The ISO 6432 mounting interface on this Ø20 bore drops directly into standard mini-cylinder brackets and clevises, offering a straightforward spares replacement.
Remember that a plain double-acting cylinder naturally vents and drifts when air pressure is lost or the valve is centred. The TPU bumpers only soften the end-of-stroke impact and do not function as a brake. If your machinery requires the load to be physically held in place during an air failure, you must integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
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 MI20X185U FAQ
This double-acting cylinder features a 1/8" air port and an M8x1.25 male 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.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for magnetic sensing. It uses the ISO 6432 mounting interface and fixed TPU bumper pads rather than adjustable air cushions.
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