Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X75SCALB
The AirTAC Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X75SCALB is a genuine single acting, push (spring return) round-body mini air cylinder with a Ø20mm bore and 75mm 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
- Stroke75 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 MSI20X75SCALB
Delivering a net push of 119.5 N at 0.5 MPa, this stainless-steel round-body mini cylinder extends via compressed air and uses an internal spring to retract. Because it is single-acting, you only need one 1/8" air line, saving plumbing and ensuring the rod safely pulls back to rest if pressure drops. The Ø8 mm piston rod features an M8x1.25 male thread.
Built to ISO 6432 mounting dimensions, it drops into standard mini brackets and offers mild corrosion resistance for washdown environments. For sizing, this bore yields a safe working load of about 72 N, or a 2:1 vertical lift margin of roughly 6.1 kg. This specific SKU includes a piston magnet for position sensing, a CA rear clevis cover, and an LB foot mount.
Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X75SCALB Technical Specifications
| Model | Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X75SCALB |
|---|---|
| Series | MSI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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 MSI20X75SCALB
| MSI | ISO 6432 round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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 MSI20X75SCALB Is Used
Light-Duty Part Ejection
Pushes finished plastic or aluminum parts out of a machining fixture with 119.5 N of force, relying on the spring to retract safely when air is removed.
Package Sorting Gate
Acts as a spring-return diverter on a packaging line, extending to route boxes and automatically snapping back to clear the conveyor path.
Carton Flap Holding
Extends to hold cardboard flaps open during automated taping, using the fail-safe retract to release the load if the air supply stops.
Is the Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI20X75SCALB the Right Cylinder?
When sizing by push force, this Ø20 bore provides 119.5 N at 0.5 MPa. If you need less force, step down to the Ø16 bore which outputs 74.9 N; if you require more, the Ø25 bore supplies 190.3 N. Remember that a minimum of 0.2 MPa is required to overcome the return spring before the rod can extend.
This 75 mm stroke sits safely within the 80 mm single-acting limit for this bore. The included -S magnet allows tracking with CMSG, DMSG, or EMSG sensors, while the LB foot bracket and CA back cover simplify rear-pivot or base-mount installations.
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 MSI20X75SCALB FAQ
It provides a net push force of 119.5 N at 0.5 MPa and 182.3 N at 0.7 MPa. A minimum of 0.2 MPa is required to overcome the internal spring. When air is released, the spring drives the rod back to its retracted rest state.
Yes, this SKU includes the -S piston magnet, allowing you to mount CMSG, DMSG, or EMSG switches for detection. It is a single-acting push type, so it only generates pneumatic force on the extend stroke.
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