Airtac MSF Single Acting Mini Cylinder MSF25X50SCM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X50SCM is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 50mm 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
- Stroke50 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 MSF25X50SCM
Generating 192.8 N of push force at 0.5 MPa, this AirTAC MSF25X50SCM 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 requirements while ensuring the piston fails safely to the retracted position on air loss. The SUS304 stainless steel round barrel shrugs off mild washdown environments.
Built to JIS standards with riveted aluminium covers, the body is deliberately shorter than a comparable ISO 6432 unit, conserving valuable machine space without sacrificing the 50 mm stroke. The quoted force is already net of the return spring, meaning you can expect a safe working load of about 116 N, or a vertical lift capacity near 9.8 kg with a 2:1 safety margin. This specific SKU includes a built-in magnet for position sensing and a CM round-end rear cover.
Airtac MSF Single Acting Mini Cylinder MSF25X50SCM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X50SCM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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 MSF25X50SCM
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 MSF25X50SCM Is Used
Parts Ejection
Uses the 192.8 N push output to positively eject stamped metal parts from a die, relying on the spring to withdraw the pin when air is removed.
Fail-Safe Clamping
Secures lightweight wood or plastic workpieces during machining, automatically releasing the clamp to the retracted state if the air supply drops.
Package Gating
Acts as a compact 50 mm stroke diverter gate on a packaging line, where the shorter JIS body leaves more room for product flow.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X50SCM the Right Cylinder?
When sizing this 25 mm bore, compare it directly against its siblings: the smaller MSF20 yields 117.5 N at 0.5 MPa, while the larger MSF32 provides 323.3 N at 0.5 MPa. Choose this model when your application requires a reliable spring-return action for clamping or ejecting, but remember the working pressure must stay at or above 0.2 MPa to overcome the internal spring. Speeds range from 50-800 mm/s.
Mounting hardware includes LB foot, FA flange, SDB pivot, and TC trunnion options to fit your frame. Thanks to the -S suffix, this unit has a piston magnet ready for CMSG, DMSG, or EMSG electronic or reed switches. End-of-stroke deceleration is handled by fixed TPU bumper pads rather than an adjustable air cushion.
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 MSF25X50SCM FAQ
It generates 192.8 N of push force at 0.5 MPa and 290.9 N at 0.7 MPa. The operating pressure range is 0.2-1.0 MPa; you must maintain at least 0.2 MPa to overcome the return spring. These force figures are already net of the spring resistance.
No. The internal spring drives the rod to the retracted position upon air loss, so it cannot act as a controllable brake or hold a mid-stroke load. For mid-stroke holding, use a double-acting MF cylinder with an external rod lock. This model also features a SUS304 stainless barrel and a -S magnet for CMSG/DMSG/EMSG sensors.
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