Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SCM
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SCM is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 30mm 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
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SCM
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation with ease. The 20 mm bore uses a 1/8" port and an M8x1.25 male rod thread, while the CM round end cover neatly tucks the rear port away for tight machinery layouts. Its stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown-prone environments.
Because it conforms to ISO 6432 mounting dimensions, this unit drops directly into standard mini-cylinder brackets and clevises. The riveted body keeps the assembly light, and fixed TPU bumper pads absorb the impact at stroke end. Thanks to the built-in -S magnet, you can track piston position using CMSG, DMSG or EMSG switches. Plan for roughly 94 N of actual work at 0.5 MPa, which means it can comfortably lift an 8 kg part vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SCM Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SCM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 MI20X30SCM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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 MI20X30SCM Is Used
Short-Stroke Clamping
Ideal for securing aluminium extrusions during CNC machining, using the 157 N push force to hold parts firmly without deflecting the workpiece.
Carton Flap Folding
The 30 mm stroke quickly folds small cardboard flaps on a packaging line, with the CM rear cover keeping the 1/8" port tucked neatly inline.
Diverter Gate Actuation
Stainless construction withstands humid washdown environments, making it perfect for snapping a sorting gate on a food-grade conveyor belt.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X30SCM the Right Cylinder?
When sizing this 20 mm bore, the adjacent 16 mm option yields 100.5 N of push at 0.5 MPa, whereas stepping up to the 25 mm bore provides 245.3 N. This makes the 20 mm an ideal middle ground for medium-duty clamping or lifting tasks. If your process requires the rod to stay put during a pressure drop or when a valve is centred, remember that the piston will drift; you should fit an external rod lock or a pilot-operated check valve for secure load holding.
The 30 mm stroke keeps the rod short and highly resistant to bending under side loads. You can mount the body using LB foot brackets, FA flanges, SDB pivot blocks, or TC trunnions to suit your frame. The fixed TPU bumpers decelerate the stroke end smoothly across the 30-800 mm/s speed range, but for high-velocity cycling you might consider the MIC variant which offers adjustable air cushioning.
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 MI20X30SCM 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".
Yes, the -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. The cylinder does not hold its load if air is lost; the fixed TPU bumper pads only decelerate the stroke end, so use an external rod lock for holding.
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