Airtac MSF Single Acting Mini Cylinder MSF20X20CA
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X20CA is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 20mm 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
- Stroke20 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 MSF20X20CA
Generating 117.5 N of push force at 0.5 MPa, this AirTAC MSF20X20CA mini cylinder uses compressed air to extend the rod and an internal spring to retract it. Because it is single-acting, you only need to plumb one 1/8 inch port, simplifying valve requirements. The quoted force is already net of the return spring, yielding a safe working load of roughly 71 N or a 6 kg vertical lift with a 2:1 margin.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, it occupies a shorter envelope than an ISO 6432 cylinder of the same bore and stroke. The rear CA pivot cover accommodates articulating rod-end loads. This non-magnet SKU cannot host position sensors; adding an -S magnet enables CMSG, DMSG, or EMSG switches.
Airtac MSF Single Acting Mini Cylinder MSF20X20CA Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X20CA |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 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 MSF20X20CA
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 MSF20X20CA Is Used
Light-Duty Clamping
Provides 71 N of safe clamping force to hold small plastic or aluminium workpieces during drilling.
Parts Ejection
Pushes lightweight stamped parts off a conveyor belt, with the spring ensuring the rod retracts if air pressure drops.
Pivot-Base Gating
Uses the CA rear pivot to swing a small diverter gate, relying on the 6 kg vertical lift capacity to move the mechanism.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X20CA the Right Cylinder?
If 117.5 N at 0.5 MPa is insufficient, step up to the MSF25 which provides 192.8 N at the same pressure. As the smallest available bore in the series, there is no smaller MSF option. You must supply at least 0.2 MPa to overcome the return spring. The fixed TPU bumper pads absorb end-of-stroke impact across the 50-800 mm/s speed range. Choose this single-acting push type for clamping or gating tasks that must fail safely to the retracted position on air loss. For mid-stroke holding, use a double-acting MF with an external rod lock.
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 MSF20X20CA FAQ
The single-acting push force is 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. Because the internal spring constantly fights the air pressure, you must apply a minimum of 0.2 MPa to overcome the spring and extend the rod.
No, this specific SKU lacks a magnet and cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. Also, since it is spring-return, the rod will drive to the retracted position on air loss rather than holding a mid-stroke load.
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