Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250SR
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250SR 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 MI20X250SR
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 Ø20 mm bore uses a 1/8" air port and an M8x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. The riveted construction keeps the body compact, while fixed TPU bumper pads absorb the impact at stroke ends.
For practical sizing, plan for about 94 N of real work at 0.5 MPa, which means it can comfortably lift an 8 kg part vertically with a 2:1 safety margin. Because the code includes an S, a built-in piston magnet is present, allowing you to mount CMSG, DMSG or EMSG switches for position sensing. The R back cover features an axial-in port, simplifying plumbing in tight spaces.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250SR Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250SR |
|---|---|
| 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 MI20X250SR
| 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 MI20X250SR Is Used
Package Sorting Diverter
Pushes lightweight cardboard cartons on a logistics line using 157 N of thrust, with the stainless build surviving dusty and occasionally damp warehouse conditions.
Textile Loom Tensioner
Extends 250 mm to position yarn guides, relying on the built-in magnet and DMSG switches to confirm stroke completion for automated loom sequencing.
Lab Sample Dispenser
Acts as a precise dosing actuator for liquid reagents, where the compact riveted round body and R axial-in port fit neatly onto crowded benchtop machinery.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250SR the Right Cylinder?
When sizing this 250 mm stroke model, verify your side-load limits; a long 250 mm rod extension increases the risk of bending, so ensure the load is guided externally. If you need less force, the Ø16 bore provides 100.5 N of push at 0.5 MPa, while stepping up to the Ø25 bore yields 245.3 N. This SKU uses the ISO 6432 mounting interface, so it drops directly into standard mini-cylinder brackets and clevises. You can also utilise LB foot, FA flange, SDB pivot or TC trunnion mounts.
Remember that a plain cylinder drifts when air is lost or the valve is centred, as the TPU bumpers only decelerate the stroke end and act as neither a lock nor a brake. To hold a load securely mid-stroke, pair this unit with an external rod lock or a pilot-operated check valve. If your application demands adjustable end-cushioning for high-speed cycles, consider the MIC variant instead.
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 MI20X250SR FAQ
This Ø20 mm bore cylinder features a 1/8" air 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 force of 32 kgf at 1.0 MPa.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the rod near the stroke end and do not function as a brake. To maintain vertical position, you must install an external rod lock or a pilot-operated check valve.
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