Airtac MSF Single Acting Mini Cylinder MSF25X70U
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X70U is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 70mm 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
- Stroke70 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MSF Single Acting Mini Cylinder MSF25X70U
Generating 192.8 N of push force at 0.5 MPa, this AirTAC MSF25X70U mini cylinder uses compressed air to extend the rod while an internal spring handles the retraction. Because it is single-acting, you only need to plumb one 1/8" port, which simplifies valve requirements and ensures the rod fails safely to the retracted position on air loss. The SUS304 stainless round barrel and riveted aluminium covers form a compact JIS-standard body that is notably shorter than an ISO 6432 unit of the same 25 mm bore and 70 mm stroke.
The quoted thrust is already net of the return spring, meaning you get that full force at the rod end. For practical sizing, expect a safe working load of roughly 116 N, or enough to vertically lift and clamp about 9.8 kg with a 2:1 safety margin. This specific SKU features a flat-end U back cover and lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors without upgrading to the -S variant. End-of-stroke deceleration is handled by fixed TPU bumper pads rather than an adjustable cushion.
Airtac MSF Single Acting Mini Cylinder MSF25X70U Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X70U |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 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 MSF25X70U
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 MSF25X70U Is Used
Spring-Return Clamping
Delivers 192.8 N of push at 0.5 MPa to secure parts, automatically releasing to a safe retracted state if air pressure drops below the 0.2 MPa floor.
Package Ejector
Uses a 70 mm stroke to push items off a line; the single 1/8" port minimizes tubing complexity on moving conveyor frames.
Vertical Lift Gate
Provides a safe working load of about 116 N, ideal for raising light access gates that safely lower via spring return during a pneumatic failure.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X70U the Right Cylinder?
When sizing this 25 mm bore, compare it both ways: 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 task requires a spring-return action, such as clamping or ejecting, and ensure your supply stays at or above the 0.2 MPa floor needed to overcome the internal spring. Mounting is versatile with LB foot, FA flange, SDB pivot, or TC trunnion options, and remember that this non-magnetized version cannot support position sensing.
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 MSF25X70U FAQ
It generates 192.8 N of thrust at 0.5 MPa and 290.9 N at 0.7 MPa. The operating pressure range is 0.2-1.0 MPa, but you must maintain at least 0.2 MPa to overcome the internal return spring. These force figures are already net of the spring resistance.
No, this specific SKU does not include a magnet, so it cannot support CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing capabilities. It also features a flat-end U back cover and fixed TPU bumper pads for end-of-stroke deceleration.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MSF Single Acting Mini Cylinder MSF25X70U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.