Airtac MSF Single Acting Mini Cylinder MSF40X50SCM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X50SCM is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 MSF40X50SCM
Delivering a robust 535.3 N of push force at 0.5 MPa, this AirTAC MSF40X50SCM mini cylinder uses compressed air to extend the rod and an internal mechanical spring to retract it. Because it is single-acting, you only need to plumb one 1/4" port, simplifying valve requirements. The quoted force is already net of the return spring, and the SUS304 stainless steel round barrel shrinks mounting length compared to an ISO 6432 unit while resisting mild washdown corrosion.
This specific configuration includes a built-in piston magnet for position sensing alongside a CM round-end rear cover. With a practical safe working load of roughly 321 N, it can vertically lift about 27.3 kg with a 2:1 safety margin. Fixed TPU bumper pads absorb end-of-stroke impacts across its 50 mm travel, operating reliably at speeds of 50-800 mm/s.
Airtac MSF Single Acting Mini Cylinder MSF40X50SCM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X50SCM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MSF40X50SCM
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MSF40X50SCM Is Used
Heavy-Duty Parts Clamping
Uses the 535.3 N push output to secure heavy metal castings during machining. The spring return automatically releases the part if the air supply drops.
Package Diverting Gate
Extends 50 mm to push heavy cartons off a main conveyor line. The single 1/4" port keeps the pneumatic routing minimal and highly reliable.
Vertical Lift Stop
Raises a physical stop to halt pallets on a gravity roller track, safely holding loads up to 27.3 kg against gravity with a 2:1 safety margin.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X50SCM the Right Cylinder?
When sizing this 40 mm bore unit, compare its 535.3 N @0.5 MPa output against the smaller MSF32, which provides 323.3 N @0.5 MPa. Since 40 mm is the largest available MSF bore, moving up in force requires switching to a different cylinder family entirely. Choose this single-acting spring-return model for clamping or ejecting tasks that must fail safely to the retracted position upon air loss. Ensure your supply stays at or above the 0.2 MPa floor, otherwise the internal spring will overpower the air pressure and prevent extension. The included -S magnet allows seamless fitting of CMSG, DMSG, or EMSG sensors, and the body accepts LB, FA, SDB, or TC 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 MSF40X50SCM FAQ
This single-acting cylinder generates a net push force of 535.3 N 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 internal return spring, with a maximum pressure limit of 1.0 MPa.
No. On air loss, the spring drives the rod to the fully retracted position, so it cannot hold an arbitrary mid-stroke load. For mid-stroke holding, use a double-acting MF cylinder with an external rod lock. This unit's -S magnet supports CMSG/DMSG/EMSG sensors.
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