Airtac MSF Single Acting Mini Cylinder MSF25X50CM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF25X50CM 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 MSF25X50CM
Delivering 192.8 N of push force at 0.5 MPa, this 25 mm bore mini cylinder uses compressed air to extend the rod and an internal spring to retract it. Because it is single-acting, you only pipe and valve a single 1/8" port, which simplifies plumbing and ensures the rod fails to the retracted position on air loss. The JIS-standard riveted round-body construction pairs a SUS304 stainless barrel with aluminium covers, offering a shorter mounting envelope than an ISO 6432 unit of the same size.
The quoted output is already net of the return spring, requiring a minimum 0.2 MPa operating pressure to overcome it. Deceleration relies on fixed TPU bumper pads rather than an adjustable cushion. For practical sizing, expect a safe working load of roughly 116 N, or a vertical lift capacity of about 9.8 kg with a 2:1 safety margin. This specific SKU lacks the -S magnet option, so it cannot host CMSG, DMSG, or EMSG position switches.
Airtac MSF Single Acting Mini Cylinder MSF25X50CM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF25X50CM |
|---|---|
| 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 MSF25X50CM
| 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 MSF25X50CM Is Used
Part Ejection
Pushes finished components out of a machining fixture with 192.8 N of force, relying on the internal spring to reset the rod between cycles.
Spring-Return Clamping
Holds a workpiece under air pressure during processing and releases it automatically to the retracted state if the air supply drops.
Divertor Gate
Actuates a lightweight routing flap on a packaging line, safely defaulting the gate closed when the system is depressurized.
Is the Airtac MSF Single Acting Mini Cylinder MSF25X50CM the Right Cylinder?
When sizing this 192.8 N (at 0.5 MPa) unit, step down to the MSF20 for 117.5 N or up to the MSF32 for 323.3 N if the load demands it. The spring-return action is ideal for clamping, ejecting, or gating tasks where the tool must withdraw safely when air is removed. Keep the operating pressure at or above the 0.2 MPa floor so the spring does not win. Mounting is versatile via LB foot, FA flange, SDB pivot, or TC trunnion brackets, and this CM round-end back cover variant suits direct pivot or clevis installations.
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 MSF25X50CM 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 internal spring. The operating pressure range is 0.2 to 1.0 MPa; you must maintain at least 0.2 MPa to overcome the return spring.
No. On air loss the spring drives the rod to the fully retracted rest position, so it cannot hold an arbitrary mid-stroke load. Additionally, this SKU lacks the -S magnet, meaning CMSG, DMSG, or EMSG switches cannot be fitted.
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