Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25SR
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25SR 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 MI20X25SR
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles short 25 mm strokes with precision. The Ø20 mm bore uses a 1/8 inch port and an M8x1.25 male rod thread. Its riveted stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
Because the piston travels just 25 mm, the fixed TPU bumper pads effectively soften end-of-stroke impact without needing adjustment. The built-in magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing, while the R back cover provides an axial-in port orientation to save space. Plan for roughly 94 N of actual work at 0.5 MPa, which means it can lift about 8 kg vertically with a 2:1 safety margin.
Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25SR Technical Specifications
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25SR |
|---|---|
| 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 MI20X25SR
| 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 MI20X25SR Is Used
Small Part Ejection
Uses the 157 N push force to knock lightweight plastic mouldings off an injection press conveyor before they enter the packaging station.
Clamp Actuation
Secures thin aluminium brackets during a CNC drilling cycle, taking advantage of the 25 mm stroke and 131.9 N pull force for rapid retraction.
Flap Folding
Folds cardboard box flaps on a washdown-ready packaging line where the stainless steel barrel resists daily moisture exposure.
Is the Airtac MI16-20 Stainless Steel Mini Cylinder MI20X25SR the Right Cylinder?
Stepping down to the Ø16 bore drops the 0.5 MPa push force to 100.5 N, whereas moving up to the Ø25 bore raises it to 245.3 N. This Ø20 model sits perfectly in the middle for light-duty positioning. The ISO 6432 mounting interface means it drops directly into standard mini-cylinder brackets and clevises, and you can pair it with LB foot, FA flange, SDB pivot, or TC trunnion hardware.
Note that a standard cylinder drifts when air is lost or the valve is centred; the bumper pads only decelerate the stroke end and do not act as a brake. To hold a vertical load securely, install an external rod lock or a pilot-operated check valve. With a short 25 mm stroke, side-load stress on the rod is minimal, but ensure the front and rear mounts are perfectly aligned.
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 MI20X25SR FAQ
This double-acting cylinder pushes with 157 N and pulls with 131.9 N at 0.5 MPa. At 0.7 MPa, push is 219.8 N and pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. It uses a 1/8 inch air port and operates at speeds between 30 and 800 mm/s.
The fixed TPU bumper pads only decelerate the piston at the stroke end; they do not lock or hold a load if air pressure drops. For vertical holding, use an external rod lock or pilot check valve. Because this SKU includes the -S magnet, it supports CMSG, DMSG, and EMSG electronic or reed switches for precise position detection.
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Covers non-human-caused product damage.
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