Airtac MI16-20 Stainless Steel Mini Cylinder MI16X55U
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI16X55U is a genuine double acting round-body mini air cylinder with a Ø16mm bore and 55mm 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.
- BoreØ16 mm
- Stroke55 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI16X55U
Delivering 100.5 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles compact automation with ease. The riveted round-body construction pairs a corrosion-resistant barrel and rod, giving it a real edge over painted alternatives in damp or washdown settings. It uses a 1/8" port and an M6x1.0 male rod thread.
Plan for roughly 60 N of actual work at 0.5 MPa, which translates to lifting about 5.1 kg vertically with a 2:1 safety margin. The built-in fixed TPU bumper pads absorb stroke-end impact without offering adjustable cushioning. This specific U variant features a 90-degree rear cover for tailored port and mounting orientation.
Airtac MI16-20 Stainless Steel Mini Cylinder MI16X55U Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI16X55U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M6×1.0 |
| 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MI16X55U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 16 | Bore size in mm. |
| ×55 | 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 MI16X55U Is Used
Package Deflector
Pushes lightweight cardboard cartons on a packaging line using its 100.5 N thrust, with the stainless body surviving humid packing rooms.
Small Parts Clamp
Secures plastic housings during machining, utilising the 90-degree U cover to keep the 1/8" port neatly out of the workspace.
Lab Dispenser Actuator
Drives a fluid valve in a laboratory setting where the 5.1 kg vertical lift capacity easily handles the mechanism mass.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI16X55U the Right Cylinder?
When sizing this 16 mm bore, stepping down to the Ø12 version drops the 0.5 MPa push force to 56.5 N, while moving up to the Ø20 bore increases it to 157.0 N. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches; you must select an -S version if your application requires electronic sensing. Standard LB foot, FA flange, SDB pivot and TC trunnion mounts are available alongside the U back cover.
Remember that venting the air supply causes the piston to drift, as the TPU bumpers only decelerate the stroke end rather than locking the rod. You will need an external pilot check valve or rod lock to hold a suspended load securely. The 55 mm stroke is well within the 500 mm maximum, keeping rod bending stress minimal.
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 MI16X55U FAQ
At 0.5 MPa it provides 100.5 N push and 86.4 N pull. At 0.7 MPa it yields 140.7 N push and 120.9 N pull. The theoretical maximum force is 20.5 kgf at 1.0 MPa. This 16 mm bore unit uses a 1/8" air port and a 6 mm piston rod.
It conforms to ISO 6432 mounting dimensions for easy bracket integration. However, because this specific SKU lacks a magnet, you cannot attach CMSG, DMSG or EMSG sensors; you would need the -S variant for position detection.
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