Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400CM
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400CM is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 400mm 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
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400CM
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 400 mm stroke with ease. The riveted barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Its 1/8" port and M8x1.25 male rod thread keep air supply and mounting straightforward.
Because the bore uses the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets and clevises. Plan for about 94 N of actual work at 0.5 MPa, which means it lifts roughly 8 kg vertically with a 2:1 safety margin. The CM round end back cover aids neat port routing, while fixed TPU bumper pads absorb the impact at stroke extremes.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400CM Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 400 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 MI20X400CM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×400 | 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 MI20X400CM Is Used
Package Diverter Gate
Pivots a routing flap on a packaging line, using the 400 mm stroke to shift parcels between adjacent belts with reliable 157 N push force.
Lab Sample Ejector
Pushes tested specimens out of a wet inspection chamber, where the stainless steel barrel resists humidity and chemical mist.
Tote Pusher Arm
Shoves empty storage totes onto a return roller conveyor, lifting or sliding loads around 8 kg without straining the mechanism.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X400CM the Right Cylinder?
When sizing this 20 mm bore, the 16 mm option gives 100.5 N of push at 0.5 MPa, whereas stepping up to the 25 mm bore yields 245.3 N. This model sits perfectly in the middle for medium-duty tasks. The 400 mm stroke is well within the 500 mm standard maximum, but at this length you must watch out for side loads and rod bending—ensure the load is guided to prevent premature seal wear.
This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG sensors; choose the -S variant if you need position detection. Remember that venting the air or centering the valve causes the piston to drift, as the TPU pads only decelerate the end of travel rather than locking the load. Use an external rod lock or pilot check valve if you need to hold position.
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 MI20X400CM 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".
No, this specific SKU does not have the -S magnet and cannot accept CMSG, DMSG or EMSG switches. You would need the -S variant for position sensing. It uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion.
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