Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15R
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15R 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 MI20X15R
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 15 mm strokes with precision. The riveted barrel and rod resist mild corrosion, outlasting painted alternatives in damp or washdown settings. Its fixed TPU bumper pads absorb end-of-stroke impact without offering adjustable cushioning.
Because this base SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. The 1/8" port and M8x1.25 male rod thread match standard Ø20 hardware. Plan for roughly 94 N of actual work at 0.5 MPa, which translates to safely lifting an 8 kg load vertically with a 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15R Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15R |
|---|---|
| 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 MI20X15R
| 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 MI20X15R Is Used
Clamp Actuation
Provides 157 N of push force at 0.5 MPa to secure aluminium workpieces in a CNC machining fixture.
Film Sealing Jaw
Drives a 15 mm rapid stroke on a vertical bag-sealing head, where the stainless body survives washdown.
Part Ejection
Kicks small plastic moulded parts out of an inspection chute using 131.9 N of retract pull force.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15R the Right Cylinder?
For a 15 mm stroke, this Ø20 bore sits between the Ø16 (100.5 N push @0.5 MPa) and the Ø25 (245.3 N push @0.5 MPa). Choose the 20 mm bore when the 16 mm lacks thrust or the 25 mm is physically too large. The R back cover supplies an axial-in port, ideal when side plumbing would clash with the mechanism.
Without air, the piston drifts, as the bumper pads only decelerate the stroke end rather than locking the load; add a pilot-operated check valve for vertical holding. The 15 mm travel keeps the rod bending moment minimal, but always guide the load to prevent side-loading. For magnetic sensing, specify the -S variant instead.
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 MI20X15R FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M8x1.25.
No, this specific SKU lacks a piston magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must order the -S variant for sensing. It uses standard ISO 6432 mounting dimensions for Ø20 bores and features an R back cover with axial porting.
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