Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40CA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40CA 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 MI20X40CA
Delivering 157 N of push force at 0.5 MPa, the AirTAC MI20X40CA is a double-acting round-body mini cylinder built for compact automation. Its stainless-steel barrel and piston rod shrug off mild corrosion, giving it a real edge over painted-steel alternatives in damp or washdown-prone environments. The riveted construction keeps the unit light, while fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning.
Designed around the ISO 6432 mounting interface, this 20 mm bore drops directly into standard mini-cylinder brackets and clevises. The 1/8" port drives the 8 mm rod efficiently across its 40 mm travel. For practical sizing, plan for a safe working load of about 94 N, which translates to lifting an 8 kg part vertically with a 2:1 safety margin. Note that this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without switching to the -S variant.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40CA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40CA |
|---|---|
| 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 MI20X40CA
| 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 MI20X40CA Is Used
Packaging Machine Diverter
Pivots light cardboard cartons on a conveyor using the CA clevis, applying 157 N of push force to route products into secondary lanes.
Bottle Sorting Gate
Handles washdown humidity in beverage lines thanks to the stainless-steel barrel, actuating a 40 mm stroke to separate glass containers.
Parts Ejector Mechanism
Pushes finished plastic mouldings out of a machining cell, safely moving loads under 94 N without damaging the end stops via TPU bumpers.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40CA the Right Cylinder?
When sizing this 20 mm bore, compare your actual load against its 157 N push and 131.9 N pull at 0.5 MPa. If you need less force, the 16 mm version provides 100.5 N of push; stepping up to the 25 mm bore yields 245.3 N. The CA back cover on this model provides an integrated pivot clevis, ideal for applications requiring angular alignment. If your mechanism loses air pressure or the valve is centred, the piston will drift and drop the load—the TPU pads only soften the end of travel, so add an external rod lock or pilot check valve for secure holding.
Because this 40 mm stroke is relatively short, side-load stress on the 8 mm rod remains minimal. For position feedback, remember this non-magnetic configuration cannot accept a sensor; you must specify an MI20X40CA-S to use reed or solid-state switches.
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 MI20X40CA FAQ
This 20 mm bore cylinder features a 1/8" port and an 8 mm rod. It generates 157 N push and 131.9 N pull at 0.5 MPa, increasing to 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
No, this specific SKU does not include a piston magnet, so it cannot accept CMSG, DMSG or EMSG switches. You must select the -S variant (MI20X40CA-S) to enable magnetic sensing. The unit uses a CA pivot clevis and fixed TPU bumper pads rather than an adjustable air cushion.
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