Airtac MSF Single Acting Mini Cylinder MSF20X75CMLB
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X75CMLB is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 75mm 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
- Stroke75 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 MSF20X75CMLB
Delivering 117.5 N of push force at 0.5 MPa, this 20 mm bore single-acting cylinder uses air to extend the rod and an internal spring to retract it. Because you only pipe one 1/8" port, plumbing is simpler, and the unit fails to the retracted position on air loss. The quoted force is already net of the return spring, yielding a safe working load of about 71 N or a 6 kg vertical lift with a 2:1 margin.
Built as a JIS-standard round-body mini with a SUS304 stainless barrel and riveted aluminium covers, it is shorter than an ISO 6432 cylinder of the same size, saving valuable mounting length. The CM round-end rear cover and LB foot bracket support straightforward base mounting. This SKU lacks a magnet, so it cannot take position sensors; adding the -S option enables CMSG, DMSG, or EMSG switches.
Airtac MSF Single Acting Mini Cylinder MSF20X75CMLB Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X75CMLB |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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 MSF20X75CMLB
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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 MSF20X75CMLB Is Used
Light Part Ejection
Pushes small machined components out of a fixture using 117.5 N of force, relying on the spring to withdraw the rod safely between cycles.
Fail-Safe Clamping
Holds a workpiece with a safe working load near 71 N during operation, automatically releasing the clamp to the retracted position if compressed air is lost.
Package Gating
Acts as a compact 20 mm bore diverter gate on a conveyor line, using its shorter JIS body to fit into tight transfer machinery footprint restrictions.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X75CMLB the Right Cylinder?
With a 117.5 N push at 0.5 MPa, this 20 mm bore fits light clamping and ejection duties; if you need more force, step up to the MSF25 at 192.8 N. Since 20 mm is the smallest available MSF bore, there is no smaller option. Ensure your supply stays at or above the 0.2 MPa floor, otherwise the internal spring will overpower the air and prevent extension. The fixed TPU bumper pads absorb end-of-stroke impacts across the 50-800 mm/s speed range.
The included LB foot bracket combined with the CM round-end back cover provides stable base mounting. Remember that this specific configuration has no magnet, meaning it cannot support CMSG, DMSG, or EMSG sensors for position feedback. If your cycle requires mid-stroke holding rather than a spring-driven return to rest, select a double-acting MF cylinder with an external rod lock instead.
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 MSF20X75CMLB FAQ
It provides a single-acting push force of 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. The operating pressure range is 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 and therefore cannot support CMSG, DMSG, or EMSG sensors. You would need the -S variant for position detection. Also, the internal spring returns the rod to rest on air loss but cannot hold a mid-stroke load.
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