Airtac MSF Single Acting Mini Cylinder MSF25X20U
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X20U is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 20mm 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
- Stroke20 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 MSF25X20U
Delivering 192.8 N of push force at 0.5 MPa, this JIS-standard round-body mini cylinder uses a SUS304 stainless barrel and riveted aluminium covers to resist mild washdown corrosion. The MSF25X20U is a single-acting push type: compressed air entering the 1/8" port extends the 10 mm rod, while an internal spring retracts it. Because you only plumb one port, valve complexity drops, and the rod safely springs back to rest if air pressure falls below the 0.2 MPa floor.
For this 25 mm bore, the quoted force is already net of the spring, yielding a safe working load of roughly 116 N or a vertical lift capacity of about 9.8 kg with a 2:1 margin. This specific SKU features a U flat-end back cover and lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors. Fixed TPU bumper pads absorb end-of-stroke impact across the 50-800 mm/s speed range.
Airtac MSF Single Acting Mini Cylinder MSF25X20U Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X20U |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 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 MSF25X20U
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 MSF25X20U Is Used
Spring-Return Clamping
Provides 192.8 N of push force to secure light workpieces, automatically releasing them to the retracted position during an air loss event.
Package Ejector Gate
Uses the 20 mm stroke to deflect items on a line, relying on the internal spring to retract the 10 mm rod quickly between cycles.
Vertical Lift Stop
Holds or lowers payloads up to roughly 9.8 kg with a 2:1 safety margin, using the U flat-end cover for flush rear mounting.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X20U the Right Cylinder?
When sizing this 192.8 N (at 0.5 MPa) unit, step down to the MSF20 for 117.5 N of lighter duty, or move up to the MSF32 for 323.3 N if your clamp requires more force. Single-acting push cylinders suit ejection, gating and clamping tasks where the load must return to a retracted rest state on air loss. Ensure your supply meets the 0.2 MPa minimum to overcome the spring. Mount via LB foot, FA flange, SDB pivot or TC trunnion; if you need position feedback, select the -S magnet variant instead of this non-sensing model.
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 MSF25X20U FAQ
This 25 mm bore cylinder generates 192.8 N of push force at 0.5 MPa and 290.9 N at 0.7 MPa. The operating pressure ranges from 0.2 to 1.0 MPa; you must supply at least 0.2 MPa to overcome the internal return spring.
No. On air loss the spring drives the rod to the retracted position, so it cannot hold arbitrary mid-stroke loads. Additionally, this SKU lacks a magnet and cannot take CMSG, DMSG or EMSG sensors; you would need the -S variant for position feedback.
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 MSF25X20U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.