Airtac MSF Single Acting Mini Cylinder MSF40X30SCM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X30SCM 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MSF Single Acting Mini Cylinder MSF40X30SCM
Delivering 535.3 N of push force at 0.5 MPa, this AirTAC MSF40X30SCM mini cylinder uses compressed air to extend the rod while an internal spring handles the retraction. Because it is a single-acting push type, you only need to plumb one 1/4" port, simplifying valve requirements and ensuring the rod fails safely to the retracted position on air loss. The SUS304 stainless round-body construction shrinks mounting length compared to an ISO 6432 unit and resists mild washdown corrosion.
The quoted output is already net of the return spring, meaning you get that full thrust on the extend stroke, but the rod cannot be loaded in reverse. For sizing, this yields a safe working load of about 321 N, or roughly 27.3 kg of vertical lift with a 2:1 margin. It includes a built-in magnet for position sensing and a CM round-end rear cover, operating between 0.2 and 1.0 MPa.
Airtac MSF Single Acting Mini Cylinder MSF40X30SCM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X30SCM |
|---|---|
| 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 MSF40X30SCM
| 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 MSF40X30SCM Is Used
Heavy-Duty Clamping
Exerts up to 535.3 N of extend force to secure heavy workpieces during machining, using the spring return to automatically release the part on air loss.
Product Ejection
Pushes finished components off a conveyor line with a 30 mm stroke, relying on the single-acting spring to safely retract the pin between cycles.
Pallet Gating
Acts as a compact stop gate for pallets, using the 1/4" port to extend the 16 mm rod and hold items until the air signal drops to release them.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X30SCM the Right Cylinder?
If 321 N of safe extend thrust is too much, step down to the MSF32 bore, which provides 323.3 N at 0.5 MPa; the MSF40 shown here is the largest available bore in the series, so there is no larger single-acting push option. Ensure your air supply stays at or above the 0.2 MPa floor, otherwise the internal spring will overpower the air and prevent extension.
This 30 mm stroke configuration is ideal for spring-return clamping or ejecting where the action must physically retract when power drops. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets. The built-in magnet allows direct fitting of CMSG, DMSG, or EMSG sensors, and the fixed TPU bumper pads absorb end-of-stroke impacts across the 50-800 mm/s speed range.
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 MSF40X30SCM FAQ
The single-acting push force is 535.3 N at 0.5 MPa and 786.5 N at 0.7 MPa, already net of the return spring. It requires a minimum operating pressure of 0.2 MPa to overcome the spring and extend the rod, with a maximum pressure of 1.0 MPa.
No, the internal spring drives the rod to the retracted rest position on air loss; it does not function as a controllable brake or hold mid-stroke loads. For held mid-stroke positioning, use a double-acting MF cylinder with an external rod lock. This model also includes a -S magnet for CMSG/DMSG/EMSG sensors.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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