Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125R
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125R is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 125mm 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
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125R
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 125 mm stroke with ease. Its riveted stainless barrel and Ø8 mm rod shrug off mild corrosion, making it a durable upgrade over painted alternatives in damp or washdown-prone environments. The R back cover configures the port for axial-in orientation, simplifying hose routing in tight machinery.
Built to ISO 6432 mounting dimensions, the Ø20 mm body drops directly into standard mini-cylinder brackets and clevises. Because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG, or EMSG reed switches. For actual work output, plan for roughly 94 N of usable load at 0.5 MPa, which translates to lifting about 8 kg vertically with a safe 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125R Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 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 MI20X125R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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 MI20X125R Is Used
Package Diverter Arm
Pushes light cardboard cartons on a packaging line using 157 N of thrust, where the stainless body survives occasional washdowns.
Textile Loom Guide
Shifts a yarn guide precisely across a 125 mm span, relying on the axial-in R cover port to keep hose routing clear of moving threads.
Small Press Ejector
Kicks stamped micro-components out of a die zone, using the fixed TPU bumpers to quietly absorb the 8 kg load impact at stroke end.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X125R the Right Cylinder?
When sizing this 125 mm stroke model, compare its 157 N push at 0.5 MPa against the smaller Ø16 bore, which offers 100.5 N, and the larger Ø25 bore, providing 245.3 N. The 1/8" port matches the Ø20 bore standard, ensuring adequate flow for its 30-800 mm/s speed range. If your mechanism loses air or the valve centres, the piston will drift; the fixed TPU bumper pads only soften the end-of-stroke impact rather than locking the rod, so add a pilot check valve for suspended loads.
For side-load durability over this 125 mm extension, ensure your front mounting uses an FA flange or SDB pivot block to prevent rod bending. If you require position feedback, you must select the -S magnet variant instead of this base model, as standard switches will not detect the piston here.
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 MI20X125R FAQ
This Ø20 mm bore cylinder features 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.
No, this base SKU lacks the internal magnet required for sensing. You must purchase the -S variant to use CMSG, DMSG, or EMSG switches. The unit conforms to ISO 6432 mounting dimensions and uses fixed TPU bumper pads rather than adjustable air cushions.
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