Airtac MSF Single Acting Mini Cylinder MSF25X25CA
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X25CA is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 25mm 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
- Stroke25 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 MSF25X25CA
Delivering 192.8 N of push force at 0.5 MPa (290.9 N at 0.7 MPa), this JIS-standard round-body mini cylinder uses a SUS304 stainless barrel and riveted aluminium covers to resist mild washdown. The MSF25X25CA is a single-acting push type: compressed air entering the 1/8" port extends the Ø10 mm rod, while an internal spring retracts it. Because the spring handles the return, you only pipe and valve one port, and the cylinder fails to its retracted position on air loss.
The quoted push force is already net of the spring resistance, but you must supply at least 0.2 MPa to overcome that spring. For sizing, a safe working load is about 116 N (roughly 60% of the 0.5 MPa figure), which translates to clamping or vertically lifting about 9.8 kg with a 2:1 margin. This 25 mm bore unit features a male M10x1.25 rod thread, fixed TPU bumper pads for end-of-stroke deceleration, and a CA rear pivot cover. It is shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length.
Airtac MSF Single Acting Mini Cylinder MSF25X25CA Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X25CA |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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 MSF25X25CA
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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 MSF25X25CA Is Used
Spring-Return Clamping
Provides 192.8 N of push force at 0.5 MPa to hold parts, with the internal spring automatically releasing the clamp when air is removed.
Package Ejector
Uses the 25 mm bore to push light items off a line, relying on the fail-safe retracted rest position to clear the path during downtime.
Pivot Gate Actuator
Leverages the built-in CA rear pivot cover to swing a diverter gate, extending 25 mm to route boxes and retracting via spring force.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X25CA the Right Cylinder?
When sizing this 25 mm bore, compare it both ways: step down to the MSF20 for 117.5 N at 0.5 MPa, or step up to the MSF32 for 323.3 N at 0.5 MPa. Choose this single-acting spring-return model for clamping, ejecting, or gating tasks that require the rod to retract automatically on air loss. Remember the 0.2 MPa pressure floor—below that, the spring wins and the rod will not extend fully. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets. This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; specify the -S variant if you need position detection.
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 MSF25X25CA FAQ
The single-acting push force is 192.8 N at 0.5 MPa and 290.9 N at 0.7 MPa. Because it is spring-return, the force is net of the spring, and you must supply a minimum of 0.2 MPa operating pressure to overcome the spring and extend the rod.
No. On air loss, the spring drives the rod to the fully retracted position; it cannot hold an arbitrary mid-stroke load (use a double-acting MF with an external rod lock for that). Additionally, this SKU has no magnet (-S), so it cannot accept CMSG, DMSG, or EMSG switches.
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