Airtac MI16-20 Stainless Steel Mini Cylinder MI20X120CM
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X120CM is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 120mm 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
- Stroke120 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X120CM
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 120 mm stroke with ease. The Ø20 mm bore operates on a 1/8 inch port, while the rolled and riveted barrel shrugs off mild corrosion better than painted alternatives. Its rear CM round cover provides a clean, compact footprint for tight assemblies.
For practical sizing, plan for around 94 N of actual work at 0.5 MPa, which translates to lifting an 8 kg part vertically with a safe 2:1 margin. Fixed TPU bumper pads absorb the impact at stroke extremes, though they decelerate rather than cushion adjustably. Because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG position switches.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X120CM Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X120CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 120 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 MI20X120CM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×120 | 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 MI20X120CM Is Used
Package Diverter Gate
Pushes lightweight cardboard cartons on a packaging line using its 157 N push force, with the stainless barrel resisting humid washdown environments.
Small Part Ejector
Ejects machined plastic components from a fixture using the 120 mm stroke, relying on the fixed TPU bumpers to soften the end-of-travel impact.
Vertical Label Press
Lowers an applicator head to press labels onto containers, safely lifting and lowering around 8 kg of tooling mass at a 2:1 safety margin.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X120CM the Right Cylinder?
When sizing this 120 mm stroke model, the smaller Ø16 bore offers 100.5 N push at 0.5 MPa, whereas stepping up to the Ø25 yields 245.3 N. The 1/8 inch port and M8x1.25 male rod thread are fixed by the 20 mm bore. You can utilise LB foot, FA flange, SDB pivot or TC trunnion mounts, and the ISO 6432 mounting interface ensures compatibility with standard mini-cylinder brackets.
Note that a plain double-acting cylinder drifts if air pressure drops or the valve centres, as the TPU bumpers only soften the end of travel rather than locking the rod. To suspend a load safely mid-stroke, integrate an external rod lock or a pilot-operated check valve. Additionally, the 120 mm stroke requires attention to side loading to prevent rod bending over the extended length.
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 MI20X120CM 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, this specific SKU lacks the internal magnet required for switches. You must purchase the -S variant (MI20X120CMS) to use CMSG, DMSG or EMSG magnetic sensors. The unit does feature a rear CM round cover and fixed TPU bumper pads for stroke deceleration.
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