Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80SCM
The AirTAC Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80SCM 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 MSI20X80SCM
Delivering 119.5 N of push force at 0.5 MPa, this AirTAC MSI20X80SCM round-body mini cylinder uses compressed air to extend the rod and an internal mechanical spring to retract it. Because it is a single-acting push type, you only need one 1/8" air line, which saves plumbing and ensures the rod automatically pulls back to a safe retracted rest position if air pressure drops. The stainless-steel barrel and rod resist mild corrosion and washdown environments. It features a CM round rear cover and uses fixed TPU bumper pads to soften stroke ends. For sizing, this bore yields a safe working load of roughly 72 N, or a vertical lift capacity of about 6.1 kg when applying a 2:1 safety margin.
This 20 mm bore unit conforms to the ISO 6432 mounting interface, dropping directly into standard mini brackets and clevises. The 80 mm travel represents the maximum standard spring-limited stroke for this bore size. An integrated piston magnet (-S) allows position sensing with CMSG, DMSG, or EMSG switches. Note that the return spring requires at least 0.2 MPa of input pressure to overcome; below that threshold, the rod will not extend. The bumper pads only decelerate the stroke end and do not lock the load in a mid-stroke position.
Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80SCM Technical Specifications
| Model | Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80SCM |
|---|---|
| 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 MSI20X80SCM
| 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 MSI20X80SCM Is Used
Part Ejection
Ideal for pushing machined parts off a conveyor at 119.5 N, with the spring return automatically resetting the ejector pin without needing a secondary valve.
Carton Gating
Provides reliable 80 mm travel to actuate a sorting gate, using the fail-safe retract to close the gate and halt product flow upon air loss.
Light Clamping
Securely holds light workpieces during assembly with a 6.1 kg vertical lift capacity, releasing the clamp instantly when air pressure is removed.
Is the Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X80SCM the Right Cylinder?
When sizing by push force, this 20 mm bore generates 119.5 N at 0.5 MPa. If your application requires less force, stepping down to the 16 mm bore yields 74.9 N; if you need more thrust, stepping up to the 25 mm bore provides 190.3 N. Remember that the single-acting spring return dictates a minimum operating pressure of 0.2 MPa to function, and the 80 mm stroke is the longest standard travel available for this bore before requiring a made-to-order configuration. Match your mounting hardware to the ISO 6432 dimensions, and utilize the -S magnet variant for CMSG, DMSG, or EMSG sensor integration.
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 MSI20X80SCM FAQ
It provides a push force of 119.5 N at 0.5 MPa and 182.3 N at 0.7 MPa. Because it is single-acting with a spring return, it requires a minimum of 0.2 MPa to overcome the spring and extend the rod; removing air retracts it.
Yes, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. Cushioning relies on fixed TPU bumper pads to decelerate the stroke end, not an adjustable air cushion.
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