Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25R
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25R is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 25mm 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
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25R
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 25 mm strokes with an R axial-in rear port. The rolled stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp production zones. Its compact riveted body relies on fixed TPU bumper pads to decelerate the stroke end, rather than an adjustable air cushion.
Because it conforms to the ISO 6432 mounting interface, the unit drops directly into standard mini-cylinder brackets and clevises. Plan for a safe working load of about 94 N, which easily lifts an 8 kg part vertically with a 2:1 safety margin. Note this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without switching to the -S version.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25R Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 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 MI20X25R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MI20X25R Is Used
Short-Stroke Part Ejection
Uses the 25 mm stroke to push machined aluminium parts out of a CNC fixture, applying 157 N of push force at 0.5 MPa to clear the workpiece quickly.
Flap Deflection
Deploys the R axial-in port configuration in tight packaging lanes to deflect carton flaps, handling the 94 N safe working load without stalling the conveyor.
Lab Sample Diverting
Leverages the stainless-steel build to resist washdown in laboratory automation, safely redirecting up to 8 kg of liquid sample racks vertically.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25R the Right Cylinder?
When sizing this 20 mm bore, stepping down to a 16 mm bore lowers the output to 100.5 N at 0.5 MPa, while moving up to a 25 mm bore increases it to 245.3 N. Keep in mind that a plain double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only soften the end of stroke and will not lock the load. To hold a vertical position securely, fit an external rod lock or a pilot-operated check valve.
The 1/8" port and M8x1.25 male rod thread match standard pneumatic manifolds and couplings. You can mount the body using LB foot, FA flange, SDB pivot or TC trunnion hardware. If your application requires position feedback, select the -S magnet variant to enable switch sensing.
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 MI20X25R FAQ
This 20 mm bore cylinder features a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
Yes, it uses the ISO 6432 mounting interface for standard clevises and brackets. However, this specific SKU has no magnet, so you must choose the -S version to use CMSG, DMSG or EMSG magnetic switches.
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