Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA
The AirTAC Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA is a genuine single acting, push (spring return) round-body mini air cylinder with a Ø20mm bore and 80mm 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
- Stroke80 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA
Delivering 119.5 N of push force at 0.5 MPa (182.3 N at 0.7 MPa), this AirTAC stainless-steel round-body mini cylinder uses compressed air through its 1/8" port to extend the rod, while an internal spring handles retraction. Because it is a single-acting PUSH type, you only need one air line, saving plumbing and ensuring the rod automatically retracts to a safe rest position if air pressure drops. The listed forces are already net of the return spring.
Built with a 20 mm bore, an Ø8 mm piston rod, and an M8x1.25 male thread, it conforms to the ISO 6432 mounting interface for easy bracket interchangeability. The stainless barrel and rod resist mild corrosion and washdown environments. For sizing, this bore yields a safe working load of about 72 N (roughly 60% of the 0.5 MPa rating), translating to a vertical lift capacity of approximately 6.1 kg with a 2:1 safety margin. This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors without upgrading to the -S variant.
Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA Technical Specifications
| Model | Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA |
|---|---|
| Series | MSI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 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 (spring return) |
|---|---|
| 0.5 MPa | 119.5 N |
| 0.7 MPa | 182.3 N |
Single-acting push: air extends the rod; the return spring retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA
| MSI | ISO 6432 round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA Is Used
Part Ejection
Pushing finished parts out of a machining fixture with 119.5 N of force, relying on the spring to retract the rod safely when air is removed.
Flow Gate Diversion
Actuating a lightweight diverter gate on a packaging line, where the fail-safe retract ensures the gate clears the conveyor on air loss.
Carton Stopping
Deploying a pin-stop to halt corrugated cartons on a gravity roller conveyor, lifting up to 6.1 kg against gravity before retracting.
Is the Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA the Right Cylinder?
When sizing by push force, this 20 mm bore provides 119.5 N at 0.5 MPa. If you need less force, step down to the 16 mm bore (74.9 N); if your application requires more, step up to the 25 mm bore (190.3 N). Remember that a minimum of 0.2 MPa is required to overcome the internal spring before the rod can extend. This 80 mm stroke represents the maximum standard spring-limited travel for this bore size. It features a CA pivot/clevis back cover and uses fixed TPU bumper pads to soften stroke ends; it is not equipped with adjustable air cushions. Because this is a non-magnet SKU, position sensing is not supported.
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 0.2 – 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 MSI Single Acting Stainless Steel Mini Cylinder MSI20X80CA FAQ
It provides a push force of 119.5 N at 0.5 MPa and 182.3 N at 0.7 MPa. You must supply at least 0.2 MPa to overcome the internal return spring; below that, the rod will not extend. When air is released, the spring drives the rod back to the retracted rest state.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. It is a single-acting spring-return cylinder, not double-acting, and features a stainless steel build with a CA back cover.
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