Airtac MSF Single Acting Mini Cylinder MSF25X100SU
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X100SU is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 100mm 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
- Stroke100 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 MSF25X100SU
Delivering 192.8 N of push force at 0.5 MPa, this AirTAC MSF25X100SU is a JIS-standard round-body mini cylinder built for single-acting operation. Air extends the 10 mm rod through a 100 mm stroke, while an internal spring handles the retraction. Because you only plumb the 1/8" port, valve requirements are halved, and the unit fails to a safe retracted state on air loss. The SUS304 stainless barrel shrinks mounting length compared to an ISO 6432 unit and resists mild washdown corrosion.
The quoted output is already net of the return spring, yielding a safe working load of roughly 116 N or a 9.8 kg vertical lift with a 2:1 margin. The U flat-end rear cover simplifies direct mounting, and the -S suffix equips the piston with a magnet for CMSG, DMSG or EMSG position sensing. End-of-stroke deceleration relies on fixed TPU bumper pads rather than an adjustable cushion.
Airtac MSF Single Acting Mini Cylinder MSF25X100SU Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X100SU |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 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 MSF25X100SU
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 25 | 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 MSF25X100SU Is Used
Part Ejection
Uses the 192.8 N push stroke to positively eject machined components from a fixture, relying on the spring to retract the 10 mm rod clear of the workspace.
Fail-Safe Clamping
Holds a workpiece under air pressure, with the internal spring automatically releasing the clamp to a retracted position if the air supply drops.
Flow Gate Actuation
Extends a 100 mm diverter gate to route products on a line, using the single 1/8" port to simplify valve assembly and control logic.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X100SU the Right Cylinder?
When sizing this 25 mm bore, compare its 192.8 N @0.5 MPa output against the smaller MSF20 at 117.5 N or the larger MSF32 at 323.3 N. Choose this spring-return configuration for clamping, ejecting or gating tasks where a pneumatic return line is unnecessary. Supply pressure must stay at or above the 0.2 MPa floor to overcome the internal spring. Mounting options include LB foot, FA flange, SDB pivot and TC trunnion brackets to suit your frame.
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 MSF25X100SU FAQ
It generates 192.8 N of push force at 0.5 MPa and 290.9 N at 0.7 MPa. These figures are net of the return spring. Operating pressure ranges from 0.2 to 1.0 MPa, with a 0.2 MPa minimum required to overcome the spring and extend the rod.
No. The internal spring drives the rod to the retracted rest position upon air loss; it cannot hold an arbitrary mid-stroke load. For mid-stroke holding, use a double-acting MF cylinder with an external rod lock. The -S magnet on this unit enables CMSG, DMSG or EMSG sensors for position confirmation.
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