Airtac MI16-20 Stainless Steel Mini Cylinder MI20X170SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X170SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 170mm 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
- Stroke170 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X170SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles a 170 mm stroke with a rugged riveted round body. The Ø20 mm bore operates on a 1/8" port and features a U-type back cover for 90-degree port orientation. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
Because it conforms to ISO 6432 mounting dimensions, the body drops directly into standard mini-cylinder brackets and clevises. The built-in magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing, while fixed TPU bumper pads decelerate the stroke end. For real work at 0.5 MPa, plan for about 94 N of usable load, which means it can safely lift an 8 kg part vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X170SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X170SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 170 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 MI20X170SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×170 | 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 MI20X170SU Is Used
Package Diverter Gate
Actuates a routing flap on a packaging line, using the 170 mm stroke to shift parcels between belts while the stainless body withstands humid washdowns.
Textile Loom Tensioner
Provides 157 N of push at 0.5 MPa to maintain consistent yarn tension, with the U cover keeping the 1/8" port neatly oriented in a tight frame.
Bin Lid Lifter
Raises lightweight hopper covers on a sorting station, safely lifting parts under 8 kg vertically thanks to its 2:1 safety margin capacity.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X170SU the Right Cylinder?
When sizing this 157 N (at 0.5 MPa) unit, stepping down to a Ø16 bore yields 100.5 N, whereas moving up to a Ø25 bore provides 245.3 N. The 170 mm stroke is well within the 500 mm maximum for this bore, though at this extension you should watch for side loads to prevent rod bending. The U-type rear cover offers a 90-degree port entry, and the -S magnet enables electronic or reed sensors.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only soften the end-of-stroke impact and will not hold a load. If your application requires strict position holding on air loss, add an external rod lock or a pilot-operated check valve.
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 MI20X170SU FAQ
This Ø20 mm bore cylinder uses a 1/8" port. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa the push is 219.8 N and pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
Yes, the -S suffix means it has a built-in piston magnet ready for CMSG, DMSG or EMSG switches. It does not hold its load on air loss; the fixed TPU bumpers only decelerate the stroke end, so use a pilot check valve for holding.
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