Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SCM
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SCM 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 MI20X350SCM
Delivering 157 N of push force at 0.5 MPa, this AirTAC MI20X350SCM actuator is a double-acting round-body mini cylinder built for demanding 350 mm travel cycles. The stainless-steel barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Riveted construction keeps the body compact, while fixed TPU bumper pads absorb the impact at stroke ends without offering adjustable cushioning.
It features a built-in piston magnet for CMSG, DMSG or EMSG switches, and the rear CM round cover keeps ports neatly oriented. The 1/8" port feeds air to drive the Ø8 mm rod at speeds between 30 and 800 mm/s. For practical sizing, plan for roughly 94 N of actual work at 0.5 MPa, which translates to lifting an 8 kg part vertically with a safe 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SCM Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SCM |
|---|---|
| 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 MI20X350SCM
| 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 MI20X350SCM Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 157 N push force to redirect cartons at 30-800 mm/s without stalling.
Lab Sample Ejection
Extends 350 mm to push test tubes out of a centrifuge carousel, relying on the stainless rod to resist chemical splashes.
Tote Pusher Arm
Cycles horizontally to index plastic totes onto a roller conveyor, lifting parts safely under the 8 kg vertical threshold.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X350SCM the Right Cylinder?
When sizing this 20 mm bore unit, the smaller MI16 generates 100.5 N of push at 0.5 MPa, whereas stepping up to the MI25 yields 245.3 N. This 157 N model sits right in the middle for medium-duty tasks. The 350 mm stroke is well within the 500 mm maximum, though at full extension you should watch for side loads to avoid bending the Ø8 mm rod. Because the bore uses the ISO 6432 mounting interface, it drops directly into standard mini-cylinder brackets and clevises.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only soften the end of travel and will not brake or hold the load. For suspended loads, add an external rod lock or a pilot-operated check valve. The -S magnet enables position sensing, and the CM back cover dictates the rear mounting orientation.
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 MI20X350SCM FAQ
This 20 mm bore cylinder uses a 1/8" port and an M8x1.25 male rod thread. 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 of 32 kgf at 1.0 MPa.
The included -S magnet allows CMSG, DMSG and EMSG switches to track position, but the fixed TPU bumpers only decelerate the stroke end. If air is lost, the piston drifts, so you must fit an external rod lock or pilot check valve to hold a load safely.
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