Airtac MSF Single Acting Mini Cylinder MSF20X150SCA
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X150SCA is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 150mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
- BoreØ20 mm
- Stroke150 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MSF Single Acting Mini Cylinder MSF20X150SCA
Generating 117.5 N of push at 0.5 MPa, this 20 mm bore single-acting cylinder uses air to extend the rod and an internal spring to retract it. Because you only plumb a single 1/8" port, valve complexity drops, and the unit defaults to a safe retracted position if air pressure falls below the 0.2 MPa floor. The quoted force is already net of the return spring, meaning it cannot be loaded on the retract stroke. The CA rear pivot cover simplifies angular mounting, while the -S suffix adds a piston magnet for position sensing.
Built as a JIS-standard round-body mini cylinder, it features a SUS304 stainless barrel and riveted aluminium covers, resisting mild corrosion and washdown environments. For the same 20 mm bore and 150 mm stroke, this riveted construction is notably shorter than an ISO 6432 cylinder, saving valuable machine space. It relies on fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable cushion. Factoring a 2:1 safety margin, the 117.5 N output safely lifts or clamps about 6 kg vertically.
Airtac MSF Single Acting Mini Cylinder MSF20X150SCA Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X150SCA |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 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 150 mm |
Specifications follow the official AirTAC MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 117.5 N |
| 0.7 MPa | 181.3 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 MSF Single Acting Mini Cylinder MSF20X150SCA
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MSF Single Acting Mini Cylinder MSF20X150SCA Is Used
Light-Duty Clamping
Clamps small plastic or aluminium components with 117.5 N of push, relying on the spring to release the part automatically when air is removed.
Package Ejector
Pushes lightweight cartons off a conveyor belt using a single 1/8" air line, saving space and simplifying valve requirements.
Pivot Gate Actuator
Operates a CA-mounted pivot gate to divert small items on a sorting line, safely defaulting to the closed retracted position during an outage.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X150SCA the Right Cylinder?
Size this 20 mm bore against the adjacent MSF25, which raises the 0.5 MPa push force to 192.8 N if your load exceeds the safe 71 N working capacity of this unit. As the smallest available bore in the series, there is no smaller MSF option below it. The single-acting spring-return design is optimal for clamping, ejecting, or gating tasks where the load must actively return to a home position on air loss. Ensure your supply stays between 0.2 and 1.0 MPa so pressure reliably overcomes the internal spring. Mounting is versatile via the CA pivot cover, and the included -S magnet supports CMSG, DMSG, or EMSG switches for end-of-stroke confirmation.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/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/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MSF Single Acting Mini Cylinder MSF20X150SCA FAQ
The 20 mm bore generates 117.5 N of push at 0.5 MPa and 181.3 N at 0.7 MPa. These figures are net of the internal return spring. Operating pressure must be between 0.2 and 1.0 MPa, as a minimum of 0.2 MPa is required to overcome the spring and extend the rod.
No, the internal spring drives the rod to the fully retracted rest position on air loss; it cannot hold an arbitrary mid-stroke load. For mid-stroke holding, use a double-acting MF cylinder with an external rod lock. This model includes a -S magnet for CMSG/DMSG/EMSG sensors.
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