Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250U is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 250mm 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
- Stroke250 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250U
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 250 mm stroke with ease. The riveted barrel and rod shrug off mild corrosion, making it superior to painted alternatives in damp environments. Its 1/8" port supplies air to both extend and retract the 8 mm rod.
Because it features the ISO 6432 mounting interface, this Ø20 unit drops directly into standard mini-cylinder brackets and clevises. The U-style back cover provides a 90-degree port orientation for tight layouts. Plan for roughly 94 N of actual work at 0.5 MPa, which means it lifts about 8 kg vertically with a 2:1 safety margin. Fixed TPU bumper pads absorb the end-of-stroke impact.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 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 MI20X250U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×250 | 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 MI20X250U Is Used
Package Diverting
Pushes light cardboard cartons on a packaging line using 157 N of thrust at 0.5 MPa.
Textile Loom Tensioning
Stainless build resists humid textile mill environments while managing 250 mm yarn guide shifts.
Bin Lid Actuation
Lifts roughly 8 kg hopper lids vertically with a 2:1 safety factor using the 90-degree U cover.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250U the Right Cylinder?
When sizing this 250 mm stroke model, verify your side-load limits to prevent rod bending over the long travel. If you need less force, the Ø16 bore provides 100.5 N push at 0.5 MPa; stepping up to the Ø25 bore yields 245.3 N. The U rear cover dictates a 90-degree mounting angle. Since this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches. For high-speed cycling, consider the MIC variant with adjustable air cushions.
Remember that standard double-acting cylinders drift when air is removed or the valve is centred. The TPU bumpers only decelerate the piston near the stroke end; they do not function as a brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve in the air line.
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 MI20X250U FAQ
This double-acting cylinder uses a 1/8" port and an 8 mm rod. 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, so CMSG, DMSG and EMSG switches will not function. You must order the -S variant for position sensing. It uses the ISO 6432 mounting interface and fixed TPU bumper pads.
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