Airtac MSF Single Acting Mini Cylinder MSF20X75SCM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X75SCM 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 MSF20X75SCM
Delivering 117.5 N of push force at 0.5 MPa, this AirTAC mini cylinder uses air to extend the rod and an internal spring to retract it, meaning you only pipe and valve a single 1/8" port. 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, the SUS304 stainless barrel and riveted aluminium covers resist mild corrosion while offering a shorter mounting envelope than an ISO 6432 cylinder of the same bore and stroke. The 75 mm stroke travels at 50-800 mm/s, decelerated by fixed TPU bumper pads. Equipped here with a piston magnet (-S) for CMSG/DMSG/EMSG sensors and a CM round-end rear cover, it requires a minimum 0.2 MPa operating pressure to overcome the spring.
Airtac MSF Single Acting Mini Cylinder MSF20X75SCM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X75SCM |
|---|---|
| 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 MSF20X75SCM
| 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 MSF20X75SCM Is Used
Small Part Ejection
Pushes lightweight machined components out of a fixture with 117.5 N, relying on the internal spring to retract the 8 mm rod automatically when air is cut.
Fail-Safe Clamping
Secures a workpiece during machining; upon air loss the spring immediately releases the clamp to the retracted position, preventing part damage.
Package Gating
Acts as a compact 75 mm stroke diverter gate on a conveyor line, where the JIS round body saves mounting space compared to ISO 6432 equivalents.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X75SCM the Right Cylinder?
This 20 mm bore generates 117.5 N at 0.5 MPa (181.3 N at 0.7 MPa); if your clamp or ejector needs less force, note there is no smaller MSF bore, but stepping up to the MSF25 provides 192.8 N at 0.5 MPa. Because it is single-acting push, it is ideal for simple ejection or gating tasks where the spring safely retracts the rod on air loss.
Ensure your supply stays at or above the 0.2 MPa floor so the spring does not win. The included -S magnet enables position sensing with CMSG/DMSG/EMSG switches, and the CM back cover pairs with standard LB foot, FA flange, SDB pivot, or TC trunnion mounts.
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 MSF20X75SCM FAQ
It provides a net push force of 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. Because it is spring-return, the working pressure floor is 0.2 MPa; below that, the return spring overcomes the air pressure and the rod will not extend.
No, the spring drives the rod to the fully retracted position on air loss; it cannot act as a controllable brake or hold a mid-stroke load. For mid-stroke holding you need a double-acting MF with an external rod lock. This unit includes the -S magnet for CMSG/DMSG/EMSG sensors and a SUS304 stainless barrel for washdown resistance.
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