Airtac MSF Single Acting Mini Cylinder MSF20X30SCM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X30SCM is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 30mm 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
- Stroke30 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 MSF20X30SCM
Generating 117.5 N of push force at 0.5 MPa, this AirTAC MSF20X30SCM 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" port, simplifying your valve setup. The quoted force is already net of the return spring, yielding a safe working load of roughly 71 N or a vertical lift capacity of about 6 kg with a 2:1 margin.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, it provides a shorter mounting envelope than an ISO 6432 cylinder for the same 20 mm bore and 30 mm stroke. The -S suffix denotes a built-in piston magnet for CMSG, DMSG, or EMSG position switches, while the CM round-end rear cover offers flexible mounting. Fixed TPU bumper pads absorb end-of-stroke impact across the 50-800 mm/s speed range.
Airtac MSF Single Acting Mini Cylinder MSF20X30SCM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X30SCM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 MSF20X30SCM
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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 MSF20X30SCM Is Used
Part Ejection
Pushes finished parts out of a machining fixture with 117.5 N of force at 0.5 MPa, relying on the spring to retract the rod safely when air is removed.
Light Clamping
Secures light workpieces during assembly, providing a safe working load of roughly 71 N while ensuring the clamp releases automatically upon air loss.
Gate Diversion
Acts as a spring-return diverter gate on a packaging line, using the 1/8" single port to extend the 8 mm rod and block product flow on demand.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X30SCM the Right Cylinder?
If your application requires less force, the MSF20 is the smallest available bore in this series, meaning you would need to step down to a different cylinder family. If your load demands more, the next size up is the MSF25, which provides 192.8 N of push force at 0.5 MPa. Ensure your supply stays at or above the 0.2 MPa floor; below this threshold the internal spring overcomes the air pressure and forces the rod back to the retracted position. Pair this -S variant with CMSG, DMSG, or EMSG sensors for position feedback, and utilize the CM round-end cover for your specific mounting needs.
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 MSF20X30SCM FAQ
This 20 mm bore cylinder delivers a net push force of 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal return spring; below 0.2 MPa the spring wins and the rod stays retracted.
The MSF20X30SCM is a single-acting push cylinder, meaning air extends the rod and the spring retracts it. On air loss, the spring drives the rod to the retracted position, acting as a fail-safe rather than a controllable brake for mid-stroke holding.
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