Airtac MSF Single Acting Mini Cylinder MSF40X80SCA
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X80SCA is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 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 MSF40X80SCA
Delivering a robust 535.3 N of push force at 0.5 MPa (786.5 N at 0.7 MPa), this 40 mm bore pneumatic mini cylinder is built for demanding clamp and eject duties. The MSF40X80SCA is a JIS-standard round-body actuator featuring a SUS304 stainless steel barrel and riveted aluminium covers, offering a shorter overall mounting length than a comparable ISO 6432 unit while resisting mild washdown corrosion.
As a single-acting push design, compressed air entering the 1/4" port extends the Ø16 mm rod, while an internal spring handles the return. This means you only plumb and valve one port, and the cylinder fails safely to the retracted position on air loss. The quoted forces are already net of the spring, which requires a minimum 0.2 MPa operating pressure to overcome. For sizing, this yields a safe working load of roughly 321 N, or a vertical lift capacity of about 27.3 kg with a 2:1 margin.
Airtac MSF Single Acting Mini Cylinder MSF40X80SCA Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X80SCA |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MSF40X80SCA
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MSF40X80SCA Is Used
Heavy Duty Clamping
Exerts 535.3 N of push force at 0.5 MPa to secure heavy metal workpieces during machining, releasing automatically via spring return.
Part Ejection
Uses the 786.5 N peak thrust at 0.7 MPa to positively eject dense finished parts from a conveyor bed before retracting.
Vertical Lift Gates
Safely raises and lowers material handling gates, lifting up to 27.3 kg with a 2:1 safety margin and failing closed on air loss.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X80SCA the Right Cylinder?
Choose this 40 mm bore when smaller bores lack thrust; stepping down to the MSF32 provides 323.3 N at 0.5 MPa, while the MSF40 is the largest available in the series with no larger option. The single-acting spring-return architecture is ideal for clamping, ejecting, or gating tasks where the load must retract automatically on air loss. Ensure your supply stays at or above the 0.2 MPa floor so the spring does not win. This specific configuration includes a CA rear pivot cover and the -S magnet option for position sensing.
For mounting flexibility, you can pair the body with LB foot, FA flange, SDB pivot-block, or TC trunnion brackets. The integrated -S piston magnet allows direct fitting of CMSG, DMSG, or EMSG reed and electronic switches. End-of-stroke deceleration is handled by fixed TPU bumper pads across the 50-800 mm/s speed range, not an adjustable air cushion.
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 MSF40X80SCA FAQ
It provides a net push force of 535.3 N at 0.5 MPa and 786.5 N at 0.7 MPa. Because it is single-acting with a spring return, it requires a minimum operating pressure of 0.2 MPa to overcome the internal spring and extend the rod.
No. The internal spring drives the rod to the retracted rest position on air loss; it cannot hold an arbitrary mid-stroke load and cannot be loaded on the return stroke. For mid-stroke holding you need a double-acting MF cylinder with an external rod lock. This unit includes the -S magnet for CMSG/DMSG/EMSG sensors and a CA rear pivot.
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