Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SR
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SR is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 350mm 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
- Stroke350 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SR
Generating 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 350 mm stroke with ease. The Ø20 mm bore uses a 1/8" air port and an M8x1.25 male rod thread. Because the barrel and rod are stainless, the riveted construction resists mild corrosion and washdown better than painted alternatives. The built-in piston magnet (-S) directly supports CMSG, DMSG, and EMSG switches for position sensing.
At 0.5 MPa, plan for a real working load of about 94 N rather than the absolute maximum. This translates to lifting roughly 8 kg vertically with a safe 2:1 margin. Fixed TPU bumper pads absorb the impact at the stroke ends, while the rear R cover features an axial-in port orientation that keeps hose routing tidy in tight machine cells.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SR Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SR |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 350 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 MI20X350SR
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×350 | 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 MI20X350SR Is Used
Diverting Gate Actuation
Pushes sorting flaps on packaging lines, using the 157 N thrust to redirect cartons at high speeds up to 800 mm/s.
Vertical Parts Ejection
Lifts completed aluminium brackets weighing up to 8 kg out of a machining fixture, relying on the 350 mm stroke for full extraction.
Lab Sample Dispensing
Moves fluid handling probes between test stations, where the stainless body withstands daily chemical wipe-downs and washdown.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SR the Right Cylinder?
When sizing this 350 mm stroke unit, verify your load against the 131.9 N pull force at 0.5 MPa. If you need less power, stepping down to a Ø16 bore provides 100.5 N of push force; if your application demands more thrust, moving up to a Ø25 bore yields 245.3 N. Because this is a non-locking actuator, the piston will drift if air pressure drops or the valve is centred, so you must add an external rod lock or pilot check valve to suspend a vertical load safely. The long 350 mm rod also demands careful alignment to prevent side-loading and premature seal wear.
This SKU includes the -S magnet for electronic or reed sensors and carries the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets. You can adapt it using LB foot, FA flange, SDB pivot, or TC trunnion hardware.
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 MI20X350SR FAQ
This Ø20 mm bore cylinder features a 1/8" air port. 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 force of 32 kgf at 1.0 MPa.
Yes, the -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. The cylinder uses fixed TPU bumper pads to decelerate the stroke end; it does not have an adjustable air cushion like the MIC variant.
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