Airtac MI16-20 Stainless Steel Mini Cylinder MI16X121SU
The AirTAC MI16-20 Stainless Steel Mini Cylinder MI16X121SU is a genuine double acting round-body mini air cylinder with a Ø16mm bore and 121mm stroke, M5×0.8 air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface fits standard ISO 6432 mini-cylinder mounting interfaces.
- BoreØ16 mm
- Stroke121 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI16X121SU
Delivering 100.5 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation with ease. The 16 mm bore uses an M5×0.8 port and a 6 mm piston rod, while the rolled riveted construction shrinks the footprint compared to heavier tie-rod alternatives. Because the 121 mm stroke exceeds the standard 500 mm maximum for this bore, it is supplied as a non-standard made-to-order unit. The integrated -S magnet supports CMSG, DMSG and EMSG position sensing.
The stainless barrel and rod naturally resist mild corrosion, making it superior to painted alternatives in damp washdown environments. Its ISO 6432 mounting dimensions ensure it drops directly into standard mini-cylinder brackets and clevises. Fixed TPU bumper pads absorb the end-of-stroke impact, and the U back cover provides a 90-degree port orientation for tight routing.
Airtac MI16-20 Stainless Steel Mini Cylinder MI16X121SU Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI16X121SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 121 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| 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 MI16X121SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 16 | Bore size in mm. |
| ×121 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MI16-20 Stainless Steel Mini Cylinder MI16X121SU Is Used
Package Diverter Gate
Pushes light cardboard cartons on a packaging line using 60 N of working force, while the stainless body handles humid washdown periods.
Lab Sample Ejection
Utilizes the 121 mm stroke to push test tubes completely out of a carousel, with the -S magnet confirming full extension via a DMSG sensor.
Small Parts Sorting
Actuates a deflecting flap in a parts feeder where the 90-degree U cover port keeps pneumatic tubing clear of the main mechanism.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI16X121SU the Right Cylinder?
When sizing this actuator, the 16 mm bore sits between the smaller 12 mm option (56.5 N push at 0.5 MPa) and the larger 20 mm variant (157.0 N push at 0.5 MPa). The extended 121 mm stroke demands attention to side loading; ensure your mounting guides the load to prevent rod bending over that travel distance. The U-style rear cover offers a 90-degree port entry, which helps when axial space is restricted. If your process requires position feedback, the -S magnet is already equipped for reed or electronic switches.
Remember that a standard double-acting cylinder drifts when air is removed or the valve is centred, as the TPU bumpers only decelerate the stroke end without locking the piston. To suspend a load safely during an air loss event, install an external rod lock or a pilot-operated check valve in the air circuit.
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 MI16X121SU FAQ
This 16 mm bore cylinder features an M5×0.8 port and a 6 mm rod. It generates 100.5 N push and 86.4 N pull at 0.5 MPa, or 140.7 N push and 120.9 N pull at 0.7 MPa. The theoretical maximum force is 20.5 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston at the stroke end and do not function as a brake. The piston will drift if air is lost or the valve is centred; use an external rod lock or pilot check valve to hold a suspended load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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