
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X20CMLB 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.
Delivering 117.5 N of push force at 0.5 MPa, this AirTAC MSF20X20CMLB 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 safely fails to the retracted position on air loss. The SUS304 stainless round-body construction resists mild washdown corrosion, and its riveted JIS design is shorter than a comparable ISO 6432 unit, saving valuable mounting length.
The quoted output 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. This specific SKU features a CM round-end rear cover and includes an LB foot mounting bracket. It lacks a magnet, so it cannot accept position switches; order an -S variant if you require CMSG, DMSG, or EMSG sensors.
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X20CMLB |
|---|---|
| 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.
| 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.
| 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.
Provides 71 N of safe holding force to secure light electronic components during machining, releasing automatically via spring return on air loss.
Pushes lightweight cartons off a conveyor line with a 20 mm stroke, relying on the spring to retract the rod quickly for the next cycle.
Raises a 6 kg fixture against gravity using compressed air, while the fail-safe spring guarantees the load drops back to the retracted rest position.
Choose this 20 mm bore when an application demands approximately 71 N of safe push force over a short 20 mm stroke. If your task requires less power, note that 20 mm is the smallest available MSF bore. If you need more force, step up to the MSF25, which provides 192.8 N at 0.5 MPa. Ensure your supply stays at or above the 0.2 MPa floor, otherwise the internal spring will overpower the air and prevent extension. The included LB foot bracket secures the CM round-end body firmly for stable clamping or ejecting tasks.
Quick checklist
This single-acting cylinder generates a net push force of 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. The operating pressure ranges from 0.2 to 1.0 MPa. You must maintain at least 0.2 MPa to overcome the internal return spring and extend the rod.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must order an MSF model with the -S suffix to enable magnetic sensing. The spring return also means it cannot hold a mid-stroke load without air pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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