Airtac MI16-20 Stainless Steel Mini Cylinder MI20X480SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X480SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 480mm 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
- Stroke480 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X480SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles long 480 mm strokes with ease. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Its riveted stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. Because it carries the -S suffix, a built-in piston magnet is included for direct mounting of CMSG, DMSG or EMSG reed and electronic switches.
For practical sizing, plan for roughly 94 N of real work at 0.5 MPa, which translates to lifting about 8 kg vertically with a 2:1 safety margin. The U-style back cover provides a 90-degree port orientation for tight spatial constraints. Fixed TPU bumper pads absorb the impact at stroke extremes, decelerating the piston smoothly within the 30-800 mm/s speed range.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X480SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X480SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 480 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 MI20X480SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×480 | 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 MI20X480SU Is Used
Diverting Gate Actuation
Pushes lightweight routing flaps on packaging lines, using the 157 N thrust and 480 mm travel to reach across a 450 mm belt during sortation.
Vertical Parts Ejection
Ejects 8 kg tote bins from a storage rack, relying on the stainless construction to withstand humid warehouse conditions and the U cover for side-port routing.
Sample Tray Extension
Extends laboratory sample trays out of a washdown chamber, where the corrosion-resistant stainless barrel survives repeated moisture exposure over the long 480 mm stroke.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X480SU the Right Cylinder?
This 480 mm stroke sits comfortably within the 500 mm maximum standard stroke for the Ø20 bore, making it an off-the-shelf configuration rather than a special order. When sizing, note that stepping down to a Ø16 bore drops the 0.5 MPa push force to 100.5 N, while moving up to a Ø25 bore increases it significantly to 245.3 N. Because this is a plain double-acting cylinder, the piston will drift if air pressure is lost or the valve is centred; the TPU pads only soften the end of stroke and do not function as a brake. To suspend a load safely mid-cycle, incorporate an external rod lock or a pilot-operated check valve.
The extended 480 mm travel demands careful attention to side loading. Mounting via standard ISO 6432 dimensions allows you to use a TC trunnion or FA flange to minimize rod-bending moments and prevent premature seal wear. The integrated -S magnet enables precise end-of-stroke detection, while the U back cover simplifies plumbing in confined machinery.
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 MI20X480SU FAQ
This Ø20 mm bore cylinder features a 1/8" air port and an M8x1.25 male rod thread. The thrust ratings are 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.
No, the piston will drift if air is lost or the valve is centred; a separate rod lock or pilot check valve is required for holding. Additionally, it uses fixed TPU bumper pads to decelerate at the stroke end, not an adjustable air cushion. The -S suffix means it is magnet-equipped for CMSG, DMSG or EMSG sensors.
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