Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SUH
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SUH is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 15mm 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
- Stroke15 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SUH
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles very short 15 mm strokes with precision. 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 and washdown better than painted alternatives. Built with a U-type 90-degree rear cover and high-temperature Viton (FKM) seals, it suits hotter environments while retaining the standard 30-800 mm/s speed range.
For real-world sizing, plan for about 94 N of usable work at 0.5 MPa, which means it lifts roughly 8 kg vertically with a 2:1 safety margin. The fixed TPU bumper pads decelerate the stroke end effectively, though they do not act as an adjustable air cushion. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position switches.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SUH Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SUH |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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 MI20X15SUH
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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 MI20X15SUH Is Used
Hot Stamp Ejection
Uses the 15 mm stroke to knock pressed parts out of a heated fixture, leveraging the Viton seals to survive ambient radiated heat.
Short-Stroke Clamping
Secures small aluminium workpieces with 157 N of push force at 0.5 MPa before a secondary machining operation begins.
Diverter Gate Actuation
Pivots a brief deflector flap on a packaging line, where the stainless construction withstands routine washdowns.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15SUH the Right Cylinder?
When sizing this 20 mm bore, stepping down to a Ø16 unit drops the 0.5 MPa push force to 100.5 N, while moving up to a Ø25 bore raises it to 245.3 N. This 15 mm stroke is extremely short, keeping the rod highly supported with minimal bending leverage. The ISO 6432 mounting interface lets you drop it straight into standard mini-cylinder brackets and clevises. If your process loses air or the valve centres, the piston will drift; the bumpers only soften the end of travel, so fit an external rod lock or pilot check valve if you must hold a load. The U-type back cover provides a 90-degree port orientation for tight spatial constraints.
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 MI20X15SUH FAQ
This double-acting cylinder pushes with 157 N and pulls with 131.9 N at 0.5 MPa. At 0.7 MPa, push is 219.8 N and pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. It uses a 1/8" air port and an M8x1.25 male rod thread.
Yes, the Ø20 mm bore conforms to ISO 6432 mounting dimensions, so it fits standard mini-cylinder brackets and clevises. The -S suffix means it has a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG reed or electronic switches directly onto the body.
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