Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15U is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 15mm 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
- Stroke15 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15U
Generating 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles short 15 mm strokes with a 90-degree U rear cover for pivot mounting. The riveted round-body construction uses a stainless barrel and rod, resisting mild corrosion better than painted alternatives in damp environments. A 1/8" port feeds the chamber, while fixed TPU bumper pads absorb the impact at stroke extremes.
For practical sizing, plan for roughly 94 N of usable work at 0.5 MPa, which translates to lifting about an 8 kg mass vertically with a safe 2:1 margin. Because this specific SKU lacks the -S magnet suffix, it cannot host CMSG, DMSG or EMSG position sensors. If your sequence requires electronic confirmation, you must select the magnet-equipped variant.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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 MI20X15U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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 MI20X15U Is Used
Clamp Release Mechanism
Uses the 15 mm stroke to quickly retract a holding jaw, applying 157 N of push at 0.5 MPa to release stamped metal parts from a fixture.
Indexing Gate Pivot
Leverages the 90-degree U back cover to swing a small safety guard open and closed on an automated lathe, fitting neatly into tight cells.
Diverter Arm Actuation
Pushes a short diverter pin into a packaging line to sort small cartons, benefiting from the stainless build during periodic washdowns.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X15U the Right Cylinder?
When sizing this 20 mm bore, the 16 mm option steps down to 100.5 N of push, whereas the 25 mm jumps up to 245.3 N at 0.5 MPa. The U-style back cover provides a 90-degree pivot axis, ideal for mechanisms needing rotational articulation rather than a rigid straight-line push. Keep in mind that a plain cylinder drifts if air pressure drops or the valve centres; the TPU bumpers only decelerate the end of stroke and will not lock the load. For suspended weights, add an external rod lock or pilot check valve.
With a very short 15 mm stroke, side loading is minimal, but ensure the pivot pin is aligned to prevent rod binding. Standard LB foot, FA flange, SDB pivot and TC trunnion brackets fit the ISO 6432 mounting dimensions, making physical integration into existing machinery straightforward.
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 MI20X15U FAQ
This 20 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 specific SKU does not include a magnet, so CMSG, DMSG or EMSG switches cannot be used. You must choose an MI20X15U-S variant to enable magnetic sensing. The unit uses fixed TPU bumper pads for deceleration and conforms to ISO 6432 mounting dimensions.
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