Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20R
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20R is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 20mm 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
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20R
Delivering 157 N of push force at 0.5 MPa, the AirTAC MI20X20R is a compact double-acting round-body mini cylinder built for tight spaces. Its stainless-steel barrel and Ø8 mm rod shrug off mild corrosion, giving it a real edge over painted 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.
This 20 mm stroke variant features a rear R axial-in port cover, routing plumbing neatly inline with the body to save valuable mounting clearance. Because it carries no internal magnet, this specific SKU cannot host CMSG, DMSG or EMSG sensors. For practical sizing, plan for a real work rate of roughly 94 N, which translates to safely lifting about an 8 kg mass vertically against gravity.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20R Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 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 MI20X20R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 MI20X20R Is Used
Short-Stroke Clamping
Ideal for locking small aluminium extrusions in place on a CNC machining fixture, utilizing the 157 N push force across a tight 20 mm travel distance.
Carton Flap Folding
Folds corrugated cardboard flaps on a compact packaging line where the rear R axial port keeps pneumatic tubing completely out of the conveyor path.
Lab Dispenser Ejection
Ejects filled vial trays in a humid laboratory environment, leveraging the stainless-steel barrel to resist mild corrosion from repeated chemical washdowns.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20R the Right Cylinder?
When sizing this actuator, the 157 N output at 0.5 MPa sits neatly between the smaller Ø16 bore (100.5 N) and the larger Ø25 bore (245.3 N). The 20 mm stroke is exceptionally short, minimizing rod bending and side-load risks, but you must account for the rear R axial port orientation when planning your manifold layout. If your application requires position feedback, you will need the -S magnet variant, as this base model cannot accept switches.
Keep in mind that a standard double-acting cylinder like this relies entirely on continuous air pressure to maintain its position. If the air supply drops or the valve is centred, the piston will drift and the load will fall; the TPU bumpers only decelerate the stroke end and act purely as an impact buffer, never as a locking brake. To suspend a load safely during an outage, fit 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 MI20X20R FAQ
The Ø20 bore generates 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port size is 1/8 inch.
No, this specific SKU lacks an internal magnet and cannot accept CMSG, DMSG or EMSG switches. You must specify the -S variant to enable position sensing. It uses standard ISO 6432 mounting dimensions and features fixed TPU bumper pads rather than an adjustable air cushion.
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