Airtac MSF Single Acting Mini Cylinder MSF40X10U
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X10U is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 10mm 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
- Stroke10 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 MSF40X10U
Delivering 535.3 N of push force at 0.5 MPa (786.5 N at 0.7 MPa), this AirTAC MSF40X10U mini cylinder is the largest bore in the JIS-standard round-body family. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments. Because it is a single-acting push type, air extends the rod while an internal spring retracts it, meaning you only plumb a single 1/4 inch port. 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 specific configuration includes a U flat-end rear cover and a short 10 mm stroke. It relies on fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion. The compact riveted body is notably shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length without conforming to that standard. Note that this SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG position switches; order an -S variant if sensing is required.
Airtac MSF Single Acting Mini Cylinder MSF40X10U Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X10U |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 10 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 MSF40X10U
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×10 | 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 MSF40X10U Is Used
Heavy-Duty Clamping
Use 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 removed.
Part Ejection
Push finished products off a conveyor line with authority; the single-acting design simplifies valve requirements by needing only one 1/4 inch air line for the extension stroke.
Gate Actuation
Drive heavy material flow gates or diverters where the compact JIS body saves space and the spring ensures the gate closes if pneumatic pressure drops.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X10U the Right Cylinder?
When sizing this 40 mm bore, compare it directly against the MSF32, which provides 323.3 N of push at 0.5 MPa. Since 40 mm is the largest available MSF bore, you cannot step up further within this series for heavier loads. The single-acting spring-return design is ideal for clamping, ejecting, or gating tasks where the mechanism must fail safely to the retracted position on air loss. Ensure your supply stays at or above the 0.2 MPa floor, otherwise the internal spring will overpower the air and prevent extension. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets to suit your layout.
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 MSF40X10U FAQ
It generates 535.3 N of push force at 0.5 MPa and 786.5 N at 0.7 MPa. These figures are net of the internal return spring. You must maintain at least 0.2 MPa of operating pressure to overcome the spring and extend the rod.
No, this specific SKU does not include a magnet and cannot accept CMSG, DMSG, or EMSG switches. You would need to specify the -S option to enable position sensing. Additionally, the spring returns the rod to rest on air loss but cannot hold a mid-stroke load.
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