Airtac MSF Single Acting Mini Cylinder MSF25X25SU
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X25SU 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 MSF25X25SU
Delivering 192.8 N of push force at 0.5 MPa (290.9 N at 0.7 MPa), this single-acting cylinder uses compressed air to extend the rod and an internal spring to retract it. Because you only plumb one 1/8" port, valve complexity drops, and the unit fails to its retracted position on air loss. The quoted force is already net of the spring, which requires at least 0.2 MPa to overcome.
Built as a JIS-standard round-body mini with a SUS304 stainless barrel and riveted aluminium covers, it is shorter than an ISO 6432 cylinder for the same 25 mm bore and 25 mm stroke, saving valuable mounting length. The -S suffix adds a piston magnet for CMSG, DMSG or EMSG sensors, and the U flat-end back cover simplifies direct rear mounting. Expect a safe working load around 116 N, or a vertical lift capacity of about 9.8 kg with a 2:1 margin.
Airtac MSF Single Acting Mini Cylinder MSF25X25SU Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X25SU |
|---|---|
| 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 MSF25X25SU
| 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 MSF25X25SU Is Used
Part Ejection
Pushes finished parts out of a machining fixture with 192.8 N at 0.5 MPa, letting the spring retract the rod clear of the workspace.
Spring-Return Clamping
Secures light workpieces using the air-driven extend stroke, safely releasing them to the retracted position if air pressure drops.
Flow Gate Actuation
Extends a 25 mm stroke to divert packages on a line, relying on the internal spring to snap the gate shut quickly.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X25SU the Right Cylinder?
If 192.8 N at 0.5 MPa is insufficient, step up to the MSF32 (323.3 N); if you need less force, the MSF20 provides 117.5 N. This push-type suits clamping, ejecting or gating tasks where the spring safely returns the load. Remember the 0.2 MPa pressure floor; below that, the spring wins and the rod will not extend. Match your mounting using LB foot, FA flange, SDB pivot or TC trunnion options, and pair with CMSG/DMSG/EMSG switches via the -S magnet.
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 MSF25X25SU FAQ
It generates 192.8 N of push force at 0.5 MPa and 290.9 N at 0.7 MPa. Because it is single-acting with a spring return, it requires a minimum operating pressure of 0.2 MPa to overcome the internal spring, with a maximum of 1.0 MPa.
No. On air loss the internal spring drives the rod to the fully retracted position; it cannot hold an arbitrary mid-stroke load. For position holding you need a double-acting MF cylinder with an external rod lock. This model includes the -S magnet for CMSG/DMSG/EMSG sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MSF Single Acting Mini Cylinder MSF25X25SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.