Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55SCA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55SCA is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 55mm 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
- Stroke55 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55SCA
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust linear motion tasks. The Ø20 mm bore features 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 environments. Fixed TPU bumper pads absorb stroke-end impact, and the built-in magnet (-S) supports CMSG, DMSG, or EMSG position switches.
Because the 157 N rating is theoretical, plan for a safe working load of about 94 N to overcome friction and dynamics. In vertical lifting, that equates to hoisting roughly an 8 kg mass with a 2:1 safety margin. The rear CA clevis mount allows pivoting articulation, while the ISO 6432 mounting interface ensures compatibility with standard mini-cylinder brackets.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55SCA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 55 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 MI20X55SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×55 | 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 MI20X55SCA Is Used
Package Diverter Gate
Actuates a routing flap on a packaging line, using the 157 N push force to redirect cartons smoothly without stalling the belt.
Lab Sample Ejector
Ejects processed sample trays from a wet testing station, where the stainless steel construction prevents mild corrosion from repeated chemical splashes.
Pivot Arm Sorter
Leverages the rear CA clevis to swing a sorting arm, lifting components weighing up to 8 kg vertically during automated bin routing.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X55SCA the Right Cylinder?
When sizing this unit, compare its 157 N push (at 0.5 MPa) against the smaller Ø16 bore, which yields 100.5 N, or the larger Ø25 bore, which provides 245.3 N. The 55 mm stroke is well within the 500 mm maximum, keeping rod bending stress low. To mount it, utilize the rear CA pivot clevis alongside standard LB foot or FA flange front brackets.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centered; the TPU bumpers only decelerate the stroke end and do not function as a brake. To suspend a load safely during an air loss event, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MI20X55SCA FAQ
This Ø20 mm bore cylinder features a 1/8" port. At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it delivers 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa.
No, the piston will drift if air is lost; the fixed TPU bumper pads only decelerate the stroke end and act as neither a brake nor an adjustable air cushion. For vertical load holding, you must add an external rod lock or pilot check valve. The included -S magnet allows CMSG, DMSG, and EMSG sensors for position detection.
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