Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCA
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCA is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 40mm 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
- Stroke40 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCA
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding compact automation. 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-steel minis in damp or washdown environments. Built-in fixed TPU bumper pads absorb stroke-end impact, while the riveted construction keeps the body light and compact.
Because it carries the -S suffix, a piston magnet is included for direct mounting of CMSG, DMSG or EMSG sensors. For real work at 0.5 MPa, plan for roughly 94 N of usable load rather than the absolute maximum. This translates to lifting about 8 kg vertically with a safe 2:1 margin, letting you match the cylinder to actual part weights. The CA rear pivot cover provides a clevis mount for angular movement.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCA Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 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 MI20X40SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 MI20X40SCA Is Used
Package Diverter Gate
Pivots a sorting flap on a packaging line using the CA clevis, relying on the 157 N push force to redirect cartons at high speed.
Textile Loom Tensioner
Maintains thread tension in a humid manufacturing environment where the stainless-steel barrel prevents mild corrosion.
Pallet Label Applicator
Extends 40 mm to press an adhesive label onto a pallet, using the integrated magnet for DMSG sensor confirmation.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X40SCA the Right Cylinder?
When sizing this 20 mm bore, the smaller Ø16 option yields 100.5 N of push at 0.5 MPa, while the larger Ø25 steps up to 245.3 N. Choose this model when your payload sits near that 8 kg vertical lift threshold. The CA back cover suits pivoting linkages, and you can pair it with LB foot, FA flange or TC trunnion brackets using the ISO 6432 mounting dimensions. Since this SKU includes the -S magnet, it is fully ready for position sensing.
Remember that the fixed TPU bumpers only decelerate the stroke end; they do not act as a brake. If air pressure drops or the valve centres, the piston will drift and drop the load. To prevent movement on a vertical lift, install an external rod lock or a pilot-operated check valve. The 40 mm stroke is well within the 500 mm maximum, keeping rod bending stress minimal.
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 MI20X40SCA FAQ
This Ø20 mm bore cylinder features a 1/8 inch 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.
No, the base MI uses fixed TPU bumper pads that decelerate at the stroke end, not an adjustable air cushion. It also does not hold position if air is lost; the piston drifts. For a vertical load, add an external rod lock or pilot check valve.
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