Airtac MSF Single Acting Mini Cylinder MSF40X30CM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X30CM is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 MSF40X30CM
Delivering 535.3 N of push force at 0.5 MPa, this 40 mm bore pneumatic mini cylinder is built for demanding clamping and ejection tasks. The AirTAC MSF40X30CM is a single-acting, push-type actuator with a spring return, meaning air extends the rod while an internal spring retracts it. Because it only requires one 1/4" air line, plumbing is simplified and the cylinder fails to the retracted position upon air loss. It features a JIS-standard round-body construction with a SUS304 stainless barrel and riveted aluminium covers, offering a shorter mounting envelope than an ISO 6432 unit of the same size.
The quoted thrust is already net of the return spring, providing a safe working load of roughly 321 N or a vertical lift capacity of about 27.3 kg with a 2:1 margin. This specific SKU lacks the -S magnet option, so it cannot accept CMSG, DMSG, or EMSG position sensors. End-of-stroke deceleration is handled by fixed TPU bumper pads rather than an adjustable cushion. The rear of the cylinder uses a CM round-end cover, and the male rod thread is M14x1.5.
Airtac MSF Single Acting Mini Cylinder MSF40X30CM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X30CM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MSF40X30CM
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 MSF40X30CM Is Used
Heavy-Duty Part Clamping
Uses the 535.3 N push force to secure heavy metal workpieces during machining, relying on the spring to release the clamp automatically when air is cut.
Product Ejection Gate
Pushes finished components off a conveyor line with a 30 mm stroke, safely retracting the gate to the home position on air loss to clear the path.
Vertical Lift Stop
Acts as a temporary lift stop for packages up to 27.3 kg, extending to block flow and spring-returning to drop below the conveyor roller surface.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X30CM the Right Cylinder?
When sizing this 40 mm bore actuator, compare its 535.3 N thrust at 0.5 MPa against the next size down: the MSF32 provides 323.3 N at the same pressure. Since 40 mm is the largest available bore in the MSF family, moving up in force requires switching to a different cylinder series. 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 model fits single-acting applications like spring-return clamping or part ejection where the load cannot push against the rod on the return stroke.
Mounting hardware options include LB foot, FA flange, SDB pivot-block, and TC trunnion brackets to suit your frame. Because this exact SKU is built without a magnet, it cannot host reed or solid-state switches; if you need position feedback, select the -S variant to enable CMSG, DMSG, or EMSG sensors. The CM round-end back cover provides a clean rear profile for direct mounting.
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 MSF40X30CM FAQ
This single-acting 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 internal return spring, with a maximum pressure of 1.0 MPa.
No, this specific SKU does not include a magnet. You must select the -S version of the MSF to use CMSG, DMSG, or EMSG magnetic switches. Additionally, the SUS304 stainless barrel resists mild corrosion, but the spring return cannot hold a mid-stroke load.
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