Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300SU
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300SU is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 300mm 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
- Stroke300 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300SU
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 300 mm stroke 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 settings. Because it carries the -S suffix, a built-in magnet enables CMSG, DMSG, or EMSG position switches.
For practical sizing, plan for about 94 N of real work at 0.5 MPa, which means it can lift roughly 8 kg vertically with a 2:1 safety margin. The U-style back cover provides a 90-degree port orientation for tight routing. Fixed TPU bumper pads absorb the impact at stroke extremes, though they only decelerate the piston rather than acting as a lock.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 300 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 MI20X300SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×300 | 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 MI20X300SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging conveyor, using the 300 mm stroke to shift parcels between sorting lanes reliably.
Lab Sample Ejection
Pushes processed test tubes out of a centrifuge carousel, where the stainless build withstands daily chemical wipe-downs.
Parts Descender
Lowers lightweight metal stampings into a treatment bath, safely managing the 8 kg vertical load within a 2:1 margin.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X300SU the Right Cylinder?
When sizing this 300 mm stroke unit, note the Ø16 bore below provides 100.5 N push at 0.5 MPa, while the larger Ø25 offers 245.3 N. If your application needs true end-position cushioning rather than basic bumpers, step up to the MIC variable-cushion variant. The 1/8" port and M8x1.25 thread are fixed for this bore. With a 300 mm stroke, minimize side loads to prevent rod bending and premature seal wear.
This SKU includes the -S magnet for sensors and a U-type rear cover. Remember that a standard double-acting cylinder drifts when air is removed or a valve centers; the TPU pads only soften the end of travel. To suspend a load safely mid-stroke, 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 MI20X300SU FAQ
This Ø20 mm bore cylinder features a 1/8" port and an M8x1.25 male 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 Ø20 mm body uses standard ISO 6432 mounting dimensions for easy bracket integration. The -S suffix denotes a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG electronic or reed switches along the groove for precise stroke detection.
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