Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25UTC
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25UTC is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 25mm 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
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25UTC
Generating 157 N of push force at 0.5 MPa, this double-acting AirTAC MI20X25UTC mini cylinder features a stainless-steel round barrel and piston rod that shrug off mild corrosion in damp or washdown environments. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Its riveted, rolled construction keeps the body compact while fixed TPU bumper pads absorb impact at the stroke ends.
Because the 25 mm stroke is so short, you can plan for a safe working load of roughly 94 N (about 60 percent of the 0.5 MPa rating). In vertical lifting tasks, that translates to hoisting an 8 kg part with a 2:1 safety margin. The rear U-style 90-degree cover and included TC trunnion accessory simplify pivot mounting on moving frames.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25UTC Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25UTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 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 MI20X25UTC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MI20X25UTC Is Used
Short-Stroke Clamping
Holds aluminium extrusions in place on a CNC machining center using the 157 N push force and 25 mm travel.
Package Diverting
Actuates a short swing gate to sort small cardboard cartons on a packaging line without overpowering the boxes.
Pallet Stopper
Uses the TC trunnion mount and U cover to deploy a 25 mm stop pin for low-mass pallets arriving at a workstation.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25UTC the Right Cylinder?
If 157 N of push at 0.5 MPa is too much for a delicate task, step down to the Ø16 bore which outputs 100.5 N; if you need more muscle, the Ø25 bore provides 245.3 N. This SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG reed switches for position sensing. You would need to specify an -S variant to enable magnetic detection.
Remember that venting the air supply or centering the directional valve causes the piston to drift, as the TPU bumpers only decelerate the end of stroke and do not function as a braking lock. To suspend a load safely mid-stroke, install an external pilot-operated check valve or a dedicated rod lock.
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 MI20X25UTC FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M8x1.25.
No, this specific SKU does not include a magnet. To use CMSG, DMSG or EMSG switches, you must purchase the -S variant of the MI20 cylinder. The standard model relies solely on fixed TPU bumper pads for end-of-stroke deceleration.
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