Airtac MSF Single Acting Mini Cylinder MSF40X150CM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X150CM is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 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 MSF40X150CM
Delivering 535.3 N of push force at 0.5 MPa (786.5 N at 0.7 MPa), this MSF40X150CM is the largest bore in the AirTAC mini line. It is a JIS-standard round-body cylinder with a SUS304 stainless barrel and riveted aluminium covers, built for single-acting push operation. Air extends the rod, while an internal spring retracts it, meaning you only plumb one 1/4 inch port. The quoted force is already net of the spring. Because it lacks the -S option, this SKU cannot accept CMSG, DMSG, or EMSG magnetic switches.
The CM round-end back cover equips this 150 mm stroke unit. For practical sizing, a safe working load is roughly 321 N (about 60% of the 0.5 MPa figure), and it can vertically lift around 27.3 kg with a 2:1 margin. The riveted construction is shorter than an ISO 6432 cylinder of equivalent size, saving valuable mounting length while resisting mild washdown environments.
Airtac MSF Single Acting Mini Cylinder MSF40X150CM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X150CM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 MSF40X150CM
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MSF40X150CM Is Used
Heavy-Duty Clamping
Secures large metal workpieces during machining, using its 535.3 N push force to hold firmly and releasing instantly via spring return when air is cut.
Package Ejector
Pushes heavy cartons off a conveyor belt at speed, relying on the internal spring to retract the 16 mm rod quickly between cycles.
Access Gate Actuator
Drives a robust sorting gate open with air pressure, allowing the spring to pull it safely back to the closed rest position during any pneumatic failure.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X150CM the Right Cylinder?
If 323.3 N from the MSF32 at 0.5 MPa is insufficient, this 40 mm bore provides the maximum push available in the series; no larger MSF bore exists. It suits applications needing a spring-return clamp, ejector, or gate that safely defaults to the retracted position on air loss. Ensure your supply meets the 0.2 MPa floor required to overcome the return spring. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion. As this specific SKU has no magnet, position sensing is impossible; specify an -S variant if you require CMSG, DMSG, or EMSG switches.
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 MSF40X150CM FAQ
It generates 535.3 N at 0.5 MPa and 786.5 N at 0.7 MPa. These figures are net of the return spring. You must supply at least 0.2 MPa to overcome the spring and extend the rod; the maximum operating pressure is 1.0 MPa.
No. On air loss, the spring drives the rod to the retracted position; it cannot hold an arbitrary mid-stroke load. For mid-stroke holding, use a double-acting MF with an external rod lock. Additionally, this SKU lacks a magnet, so it cannot take CMSG, DMSG, or EMSG switches.
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