Airtac MSF Single Acting Mini Cylinder MSF20X10SU
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X10SU is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 10mm 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
- Stroke10 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 MSF20X10SU
Delivering 117.5 N of push at 0.5 MPa, this compact 20 mm bore cylinder uses air to extend the rod and an internal spring to retract it. Because it is single-acting, you only plumb one 1/8" port, simplifying valve setup while ensuring the rod fails safely to the retracted position on air loss. The SUS304 stainless barrel shrinks mounting length compared to an ISO 6432 unit and resists mild washdown.
The quoted force is already net of the return spring, providing a safe working load of roughly 71 N or a 6 kg vertical lift with a 2:1 margin. This JIS-standard round-body mini features fixed TPU bumper pads, a U flat-end rear cover, and a built-in magnet for position sensing.
Airtac MSF Single Acting Mini Cylinder MSF20X10SU Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X10SU |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 10 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 MSF20X10SU
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×10 | 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 MSF20X10SU Is Used
Short-Stroke Clamping
Exerts a safe 71 N load to hold light components during machining, returning automatically via spring when air is cut.
Package Ejector
Pushes small cartons off a belt with a 10 mm tap, relying on the spring to keep the rod clear of passing items.
Sorter Gate
Acts as a compact diverter arm that fails safe to the retracted position during an air loss event.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X10SU the Right Cylinder?
With a 10 mm stroke, this model suits short ejection or clamping tasks. If 117.5 N at 0.5 MPa is insufficient, step up to the MSF25 (192.8 N); no smaller MSF bore exists. Supply at least 0.2 MPa to overcome the spring. Mount via LB foot or FA flange, and use CMSG, DMSG, or EMSG switches with the included -S magnet.
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 MSF20X10SU FAQ
It generates 117.5 N of push at 0.5 MPa and 181.3 N at 0.7 MPa. Because it is single-acting, the force is net of the internal spring, and you must supply at least 0.2 MPa to overcome that return spring.
No. On air loss, the internal spring drives the rod to the retracted position; it cannot hold an arbitrary mid-stroke load. Use a double-acting MF with an external rod lock for mid-stroke holding. The -S magnet allows CMSG, DMSG, or EMSG sensors.
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