Airtac MSF Single Acting Mini Cylinder MSF40X150CA
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X150CA 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 MSF40X150CA
Delivering 535.3 N of push at 0.5 MPa, this AirTAC MSF40X150CA is the largest bore in the JIS-standard round-body mini line. It uses compressed air fed through a 1/4" port to extend the 16 mm rod over a 150 mm stroke, while an internal spring handles the retraction. Because it is single-acting, you only plumb one air line, which simplifies valve requirements and ensures the cylinder fails to the retracted position upon air loss.
The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown environments. For the same bore and stroke, this JIS body is shorter than an ISO 6432 cylinder, saving valuable mounting length. The quoted force is already net of the return spring, yielding a safe working load of roughly 321 N or a vertical lift capacity of about 27.3 kg with a 2:1 margin. This base SKU lacks a magnet and cannot accept position sensors; adding the -S option enables CMSG, DMSG, or EMSG switches.
Airtac MSF Single Acting Mini Cylinder MSF40X150CA Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X150CA |
|---|---|
| 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 MSF40X150CA
| 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 MSF40X150CA Is Used
Heavy-Duty Part Ejection
Uses the full 535.3 N push force to positively eject dense machined metal components from a fixture, relying on the spring to reset the plunger between cycles.
Pallet Gate Actuation
Extends 150 mm to open a heavy diverter gate on a packaging line, with the single-acting spring return ensuring the gate automatically closes if the air supply drops.
Material Lift Stopper
Acts as a high-capacity physical stop for pallets, safely lifting or halting loads up to 27.3 kg with a 2:1 margin before releasing them downstream.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X150CA the Right Cylinder?
When sizing this 40 mm bore, verify your actual load requirements. If 535.3 N at 0.5 MPa is excessive, step down to the MSF32, which provides 323.3 N of push. As the largest available MSF bore, there is no larger standard option for higher force demands. You must maintain at least 0.2 MPa of operating pressure to overcome the internal spring and extend the rod.
This model features a CA rear pivot cover, making it ideal for pivoting loads when paired with appropriate mounts like the LB foot, FA flange, or TC trunnion. It relies on fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable cushion. Remember that the spring actively drives the rod back to the retracted position on air loss; it will not hold a mid-stroke load, so use a double-acting MF with an external rod lock if position holding is required.
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 MSF40X150CA FAQ
The single-acting push force is 535.3 N at 0.5 MPa and 786.5 N at 0.7 MPa. These figures are net of the internal spring. You must supply at least 0.2 MPa of air pressure to overcome the spring and extend the rod.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must select the -S variant to enable magnetic sensing. Also, because it is spring-return, it will retract to the rest position on air loss rather than holding a mid-stroke load.
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