Airtac MSF Single Acting Mini Cylinder MSF40X100U
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF40X100U is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm 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
- Stroke100 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 MSF40X100U
Delivering 535.3 N of push force at 0.5 MPa, this AirTAC MSF40X100U is a JIS-standard round-body mini cylinder built for single-acting operation. Air extends the 16 mm rod through its 100 mm stroke, while an internal spring handles the return. This means you only plumb a single 1/4 inch port, and the rod safely retracts if air pressure drops. The quoted force is already net of the spring resistance, yielding a safe working load of roughly 321 N or a 27.3 kg vertical lift with a 2:1 margin.
The riveted rolling-packed construction pairs a SUS304 stainless steel barrel with aluminium covers, giving you mild washdown resistance without the bulk of a tie-rod body. For the same 40 mm bore and 100 mm stroke, this JIS design is notably shorter than an ISO 6432 cylinder, saving valuable mounting length. This specific SKU lacks a magnet, so it cannot accept position switches; adding the -S option enables CMSG, DMSG, or EMSG sensors. End-of-stroke deceleration relies on fixed TPU bumper pads rather than an adjustable cushion.
Airtac MSF Single Acting Mini Cylinder MSF40X100U Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF40X100U |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 MSF40X100U
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MSF40X100U 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 safely withdraw the pin between cycles.
Vertical Lift Gates
Raises lightweight pneumatic flap gates weighing up to 27.3 kg against gravity, with the spring ensuring the gate fails closed on air loss.
Secure Clamping Jigs
Applies over 321 N of safe holding pressure to stabilize heavy wooden or composite workpieces during routing, automatically releasing when air is removed.
Is the Airtac MSF Single Acting Mini Cylinder MSF40X100U the Right Cylinder?
When sizing this 40 mm bore, compare its 535.3 N @0.5 MPa output directly against the smaller MSF32, which provides 323.3 N. Because 40 mm is the largest available bore in the MSF family, you cannot step up further for more push force. Ensure your air supply stays at or above the 0.2 MPa floor; below that threshold, the internal spring overcomes the air pressure and the rod will not extend. This model features a U flat-end back cover, so match your mounting accordingly using LB foot, FA flange, SDB pivot, or TC trunnion brackets. Since this SKU has no -S magnet, choose an -S variant if your application requires CMSG, DMSG, or EMSG position sensing.
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 MSF40X100U FAQ
This single-acting cylinder 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 return spring. It requires an operating pressure of 0.2 to 1.0 MPa, as you must supply at least 0.2 MPa to overcome the spring and extend the rod.
No. On air loss, the internal spring drives the rod to the fully retracted position, so it cannot hold an arbitrary mid-stroke load. For mid-stroke holding, use a double-acting MF cylinder with an external rod lock. Also, this specific SKU lacks a magnet, so it cannot support CMSG or DMSG sensors.
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