Airtac MI16-20 Stainless Steel Mini Cylinder MI20X500SR
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X500SR is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 500mm 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
- Stroke500 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X500SR
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 500 mm stroke with ease. The Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. The R back cover features an axial-in port orientation, simplifying rear plumbing in tight spaces.
Built-in fixed TPU bumper pads absorb impact at the stroke extremes, though they decelerate rather than act as an adjustable air cushion. Equipped with a piston magnet (-S), it supports CMSG, DMSG, and EMSG switches for position sensing. Plan for a safe working load of about 94 N, which means it can reliably lift an 8 kg part vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X500SR Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X500SR |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 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 MI20X500SR
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×500 | 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 MI20X500SR Is Used
Long-Reach Diverting
Pushes light packages across a transfer plate using the full 500 mm extension, leveraging the 157 N thrust to overcome guide friction.
Vertical Part Elevation
Lifts an 8 kg tote from a lower conveyor tier, relying on the stainless construction to withstand humid ambient conditions.
Film Roll Feed
Extends to position a wrapping material roll, using the R axial-in port to keep rear pneumatic lines neatly aligned.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X500SR the Right Cylinder?
This 500 mm stroke sits at the maximum standard limit for the Ø20 bore, so avoiding side loads is critical to prevent rod bending over such a long extension. If your task needs less force, the Ø16 bore offers 100.5 N push at 0.5 MPa; for heavier cycles, the Ø25 bore steps up to 245.3 N. Because the 500 mm length amplifies leverage, secure mounting via LB foot, FA flange, or TC trunnion is essential.
The ISO 6432 mounting interface drops directly into standard mini-cylinder brackets and clevises. Remember that a standard cylinder drifts if air pressure drops or the valve is centred, as the TPU bumpers only soften the end of stroke and do not function as a brake; add an external rod lock or pilot check valve if you need to hold a vertical load safely.
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 MI20X500SR FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port size is 1/8 inch.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not act as a lock. You must use an external rod lock or pilot check valve to hold a load.
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