Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CM
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CM is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 45mm 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
- Stroke45 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CM
Delivering 157 N of push force at 0.5 MPa, this double-acting AirTAC MI20X45CM mini cylinder features a stainless-steel riveted round body that resists mild corrosion in damp or washdown environments. The Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its 45 mm stroke operates at 30-800 mm/s, and the rear CM round end cover dictates a specific port and mounting orientation for tight spaces.
Built to ISO 6432 mounting dimensions, the unit drops directly into standard mini-cylinder brackets and clevises. Fixed TPU bumper pads absorb the stroke-end impact. For practical sizing, plan for about 94 N of real work at 0.5 MPa, which means it lifts roughly 8 kg vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CM Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 45 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 MI20X45CM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×45 | 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 MI20X45CM Is Used
Package Diverter Gate
Actuates a short 45 mm routing flap on a packaging line, using the 157 N push force to redirect light cardboard cartons between belts.
Small Part Ejector
Pushes machined plastic components out of a CNC fixture, relying on the stainless build to withstand occasional coolant spray.
Bin Lid Lifter
Raises the lightweight lid of a sorting tote, safely lifting an 8 kg equivalent load with a 2:1 vertical margin.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X45CM the Right Cylinder?
When sizing this 20 mm bore, stepping down to a 16 mm bore drops the push force to 100.5 N, while moving up to a 25 mm bore increases it to 245.3 N at 0.5 MPa. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches; you must select an -S variant if your control system requires sensing. The 45 mm stroke is well within the 500 mm maximum, keeping rod bending stress minimal.
Keep in mind that a standard double-acting cylinder drifts if air pressure drops or the valve is centred. The TPU bumpers only decelerate the piston near the stroke end and do not function as a brake. To suspend a load safely during an air loss event, install an external pilot-operated check valve or a dedicated rod lock.
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 MI20X45CM FAQ
The 20 mm bore generates 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa. It uses a 1/8 inch air port and an M8x1.25 male rod thread.
Yes, the Ø20 mm body conforms to ISO 6432 mounting dimensions, so it fits standard clevises and foot brackets. However, because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG switches; choose an -S version for position sensing.
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