Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SUTC
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SUTC is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 40mm 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
- Stroke40 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SUTC
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation with ease. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Built-in fixed TPU bumper pads absorb stroke-end impact, while the riveted construction keeps the body light. Because this SKU includes the -S magnet, it supports CMSG, DMSG and EMSG reed or electronic switches for position sensing.
The stainless barrel and rod resist mild corrosion, making it superior to painted alternatives in damp or washdown environments. Its dimensions match the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets. For real work at 0.5 MPa, plan for about 94 N of safe load, which means it can vertically lift roughly 8 kg with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SUTC Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SUTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 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 MI20X40SUTC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 MI20X40SUTC Is Used
Package Diverter Gate
Actuates a lightweight routing flap on a packaging conveyor, using the 157 N push force to redirect small cartons at high speed.
Bin Lid Opener
Lifts a hinged stainless-steel access hatch on a material hopper, safely handling the 8 kg vertical load within its 40 mm stroke.
Clamp Actuator
Secures aluminium workpieces in a CNC machining fixture, relying on the TC trunnion to accommodate slight angular misalignment.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SUTC the Right Cylinder?
When sizing this 20 mm bore, the smaller Ø16 option yields 100.5 N of push at 0.5 MPa, whereas the larger Ø25 generates 245.3 N, giving you clear boundaries for scaling force. This specific configuration pairs a U-type 90-degree rear cover with a TC trunnion mount, offering pivot flexibility. If your mechanism must maintain a vertical position during air loss or valve centering, note that the piston will drift; the bumpers only decelerate the end of stroke and act as neither a lock nor a brake. For secure holding, specify 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 MI20X40SUTC FAQ
This double-acting 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 denotes a built-in piston magnet compatible with CMSG, DMSG and EMSG switches. The Ø20 mm round body conforms to ISO 6432 mounting dimensions, allowing it to fit standard mini-cylinder clevises and brackets seamlessly.
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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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