Airtac MSF Single Acting Mini Cylinder MSF20X150CA
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X150CA 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 MSF20X150CA
Delivering 117.5 N of push at 0.5 MPa, this JIS-standard round-body mini cylinder uses air to extend the rod and an internal spring to retract it. Because it is single-acting, you only pipe and valve one 1/8" port, and it fails safely to the retracted position on air loss. The SUS304 stainless barrel shrinks mounting length compared to an ISO 6432 unit while resisting mild washdown. With a practical safe working load of about 71 N, it clamps or vertically lifts around 6 kg with a 2:1 margin.
This 20 mm bore variant features an 8 mm rod, an M8x1.25 male thread, and a CA rear pivot cover. It travels the maximum standard 150 mm stroke at 50-800 mm/s, stopping on fixed TPU bumper pads. Note that this SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors without switching to an -S version.
Airtac MSF Single Acting Mini Cylinder MSF20X150CA Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X150CA |
|---|---|
| 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 MSF20X150CA
| 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 MSF20X150CA Is Used
Long-Stroke Part Ejection
Uses the full 150 mm travel to push finished parts clear of a machine bed before the spring safely retracts the rod on air loss.
Fail-Safe Workholding
Clamps components with roughly 71 N of safe force, releasing automatically to the retracted position if the compressed air supply drops.
Pivot-Mounted Gating
Leverages the CA rear pivot to swing a diverter arm, using the 6 kg vertical lift capacity to route lightweight packages.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X150CA the Right Cylinder?
If 71 N of safe push is insufficient, step up to the MSF25, which yields 192.8 N at 0.5 MPa; there is no smaller MSF bore below 20 mm. This model is ideal for spring-return clamping, ejecting, or gating where air loss must default to a safe retracted state. Maintain at least 0.2 MPa operating pressure so air overcomes the return spring. For mounting, pair the CA pivot with LB foot, FA flange, or TC trunnion brackets as your frame requires.
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 MSF20X150CA FAQ
This 20 mm bore cylinder provides a net push force of 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. You must supply at least 0.2 MPa of air pressure to overcome the internal return spring, with a maximum operating pressure of 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot host CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. Additionally, the internal spring retracts the rod on air loss; it will not hold a mid-stroke load.
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