Airtac MSF Single Acting Mini Cylinder MSF40X90CM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X90CM is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 90mm stroke, 1/4" 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.
- BoreØ40 mm
- Stroke90 mm
- Port size1/4"
- Acting typeSingle acting, push (spring return)
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MSF Single Acting Mini Cylinder MSF40X90CM
Delivering a robust 535.3 N of push force at 0.5 MPa (786.5 N at 0.7 MPa), this 40 mm bore mini cylinder extends via air pressure and relies on an internal spring to retract. Because it is single-acting, you only plumb one 1/4" port, which simplifies valve requirements and ensures the rod fails safely to the retracted position upon air loss. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments.
For this bore size, the quoted thrust is already net of the return spring, meaning you can safely lift or clamp a load of roughly 27.3 kg with a 2:1 safety margin. The JIS-standard riveted round-body construction is notably shorter than a comparable ISO 6432 unit, saving valuable mounting length. This specific CM-cover configuration features a round rear end, and since it lacks the -S option, it cannot accept CMSG, DMSG, or EMSG magnetic sensors.
Airtac MSF Single Acting Mini Cylinder MSF40X90CM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X90CM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø40mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 535.3 N |
| 0.7 MPa | 786.5 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 MSF40X90CM
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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 MSF40X90CM Is Used
Heavy-Duty Part Ejection
Uses the 535.3 N push stroke to positively eject dense machined metal components from a fixture, with the spring safely pulling the rod back clear of the workspace.
Pallet Stop Gate
Acts as a robust pneumatic stop gate on a conveyor, extending to halt heavy pallets and retracting instantly to release them down the line.
Vertical Lift Station
Leverages the 786.5 N available at 0.7 MPa to vertically lift workpieces of roughly 27.3 kg against gravity before releasing them at the target elevation.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X90CM the Right Cylinder?
When sizing this 40 mm bore model, verify your actual load requirements against both neighboring options. If 535.3 N at 0.5 MPa is excessive, stepping down to the MSF32 provides 323.3 N; conversely, this is the largest bore available in the series, offering 786.5 N at 0.7 MPa if you need maximum thrust. Ensure your air supply stays at or above the 0.2 MPa floor, otherwise the internal spring will overpower the air pressure and prevent extension.
This single-acting push design is optimal for simple clamping, ejecting, or gating tasks where the spring return naturally resets the part. Mounting is versatile with LB foot, FA flange, SDB pivot, or TC trunnion brackets. If your application requires position sensing, you must select the -S magnet variant, as this base SKU cannot host a reed switch.
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 MSF40X90CM FAQ
This 40 mm bore cylinder generates 535.3 N of thrust at 0.5 MPa and 786.5 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the return spring, with a maximum pressure limit of 1.0 MPa.
No, this specific SKU does not include a magnet. You must purchase the -S variant to use CMSG, DMSG, or EMSG sensors. Additionally, the internal spring drives the rod to the retracted position on air loss, so it cannot hold a mid-stroke load without a double-acting MF cylinder and external rod lock.
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