Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SR
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SR is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 20mm 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
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SR
Generating 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles compact automation tasks with ease. The Ø20 mm bore features a 1/8" air port and an M8x1.25 male rod thread. Its riveted stainless barrel and rod naturally resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. The R back cover supplies an axial-in port orientation for tight spatial restrictions.
Because the piston travels just 20 mm, fixed TPU bumper pads effectively absorb the end-of-stroke impact without requiring adjustment. The built-in magnet (-S) directly supports CMSG, DMSG and EMSG position switches. For practical sizing, plan for roughly 94 N of usable work at 0.5 MPa, which translates to lifting about 8 kg vertically with a safe 2:1 margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SR Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SR |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 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 MI20X20SR
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 MI20X20SR Is Used
Short-Stroke Ejector
Knocks small moulded plastic parts off a machining fixture using 157 N of push force within a 20 mm travel.
Package Diverter Gate
Actuates a lightweight routing flap on a packaging line where the stainless body withstands occasional washdowns.
Component Clamping
Secures a small aluminium workpiece for a secondary drilling operation, lifting a maximum of 8 kg safely.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X20SR the Right Cylinder?
When sizing this unit, stepping down to a Ø16 bore lowers the push force to 100.5 N, while moving up to a Ø25 bore increases it to 245.3 N at 0.5 MPa. The ISO 6432 mounting interface on this Ø20 bore lets it drop directly into standard mini-cylinder brackets and clevises. You can mount it via LB foot, FA flange, SDB pivot or TC trunnion hardware. If your process requires position feedback, the internal magnet pairs seamlessly with CMSG, DMSG or EMSG sensors.
Keep in mind that a standard cylinder drifts when air is lost or the valve is centred, as the TPU pads only soften stroke ends rather than locking the rod. To suspend a load safely, install an external rod lock or a pilot-operated check valve. Additionally, the short 20 mm stroke keeps rod bending stress minimal, but always ensure the load moves linearly to avoid side-loading the seals.
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 MI20X20SR FAQ
This double-acting cylinder delivers 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa. It uses a 1/8" air port and operates at speeds between 30 and 800 mm/s.
Yes, the -S suffix denotes a built-in piston magnet designed for CMSG, DMSG and EMSG reed or electronic switches. Regarding load holding, the cylinder will drift if air is lost because the fixed TPU bumper pads only decelerate the stroke end. You must add an external rod lock or pilot check valve to hold a suspended load.
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