Airtac MSF Single Acting Mini Cylinder MSF25X15U
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X15U is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 15mm stroke, 1/8" 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.
- BoreØ25 mm
- Stroke15 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MSF Single Acting Mini Cylinder MSF25X15U
Delivering 192.8 N of push force at 0.5 MPa, this AirTAC MSF25X15U mini cylinder uses compressed air to extend the rod and an internal spring to retract it. Because it is single-acting, you only plumb one 1/8" port, simplifying valve setup. The spring ensures the rod fails safely to the retracted position on air loss, though it cannot hold a mid-stroke load. A practical safe working load is roughly 116 N, capable of vertically lifting about 9.8 kg with a 2:1 margin.
Built with a JIS-standard round body, the riveted SUS304 stainless barrel and aluminium covers form a shorter envelope than an ISO 6432 unit of the same bore and stroke, saving valuable machine space. The 15 mm stroke is decelerated by fixed TPU bumper pads rather than an adjustable air cushion. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors, and it features a U flat-end back cover for direct mounting.
Airtac MSF Single Acting Mini Cylinder MSF25X15U Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X15U |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 192.8 N |
| 0.7 MPa | 290.9 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 MSF25X15U
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×15 | 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 MSF25X15U Is Used
Short-Stroke Clamping
Uses the 192.8 N push force to secure light workpieces against a fixture during machining.
Part Ejector
Extends 15 mm to push small components off a conveyor line, relying on the spring to retract clear.
Bin Gate Actuation
Opens and closes lightweight hopper flaps, safely defaulting to the closed position via spring return.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X15U the Right Cylinder?
When sizing this 25 mm bore, evaluate your force needs against the 192.8 N output at 0.5 MPa. If your application requires less power, step down to the MSF20, which provides 117.5 N; if you need more thrust, the MSF32 offers 323.3 N at the same pressure. 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 single-acting design is optimal for simple clamping, ejecting, or gating tasks. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets, but note this base unit cannot support magnetic sensing without upgrading to the -S variant.
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 MSF25X15U FAQ
The single-acting push force is 192.8 N at 0.5 MPa and 290.9 N at 0.7 MPa, already net of the return spring. It requires an operating pressure between 0.2 and 1.0 MPa, with a 0.2 MPa minimum floor needed to overcome the spring and extend the rod.
No, this specific SKU does not include a magnet. You must specify the -S option to use CMSG, DMSG, or EMSG magnetic switches. Additionally, the SUS304 stainless round body uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable cushion.
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