Airtac MTF Mini Cylinder MTF25X20CA
The AirTAC Airtac MTF Mini Cylinder MTF25X20CA is a genuine single acting, pull (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, pull (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF25X20CA
Generating 153.6 N of pull force at 0.5 MPa (236 N at 0.7 MPa), this JIS-standard round-body mini cylinder uses a SUS304 stainless barrel and riveted aluminium covers to save mounting length compared to an ISO 6432 unit. The MTF25X20CA is a single-acting pull type where an internal spring holds the rod extended and air retracts it, making it ideal for fail-safe-open mechanisms. Because the quoted force is already net of the spring, you can plan around a safe working load of roughly 92 N, or vertically lift about 7.8 kg with a 2:1 margin. This specific CA back-cover variant features a rear pivot for direct mounting, uses a 1/8" port, and lacks the -S magnet, meaning it cannot host CMSG, DMSG, or EMSG sensors.
Built for tensioning and clamping tasks, the unit relies on fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable cushion. It operates between 0.2 and 1.0 MPa, requiring at least 0.2 MPa to overcome the return spring, and accepts a male M10x1.25 rod thread. The stainless construction provides reliable mild corrosion and washdown resistance for demanding environments.
Airtac MTF Mini Cylinder MTF25X20CA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF25X20CA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull (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 | Pull force (spring return) |
|---|---|
| 0.5 MPa | 153.6 N |
| 0.7 MPa | 236.0 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac MTF Mini Cylinder MTF25X20CA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, 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 MTF Mini Cylinder MTF25X20CA Is Used
Tension Control
Maintains constant tension on belts or filaments by pulling with 153.6 N at 0.5 MPa, releasing the load when air is applied.
Fail-Safe Opening
Keeps lids or gates extended by spring force; air retracts the 20 mm stroke to close them, ensuring an open state during pressure loss.
Clamp Retraction
Holds a workpiece using the spring-extended rod, applying air via the 1/8" port to pull the clamp back and release the part.
Is the Airtac MTF Mini Cylinder MTF25X20CA the Right Cylinder?
When sizing this 25 mm bore, compare its 153.6 N pull force at 0.5 MPa against the smaller MTF20, which yields 93.4 N, or the larger MTF32, which provides 266.8 N. Choose this model when your mechanism requires spring-open and air-close behavior, such as tensioning or returning to an extended fail-safe state upon air loss. Ensure your air supply meets the 0.2 MPa minimum floor to retract the rod against the spring. The CA rear pivot cover simplifies angular mounting, but since this SKU lacks the -S magnet, you must select a magnet-equipped variant if you need to integrate CMSG, DMSG, or EMSG position switches.
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 MTF Mini Cylinder MTF25X20CA FAQ
This single-acting cylinder provides a net pull force of 153.6 N at 0.5 MPa and 236 N at 0.7 MPa. It requires an operating pressure between 0.2 and 1.0 MPa, with 0.2 MPa being the minimum required to overcome the internal return spring.
The internal spring constantly extends the rod, while air pressure retracts it. If air is lost, the spring drives the rod to the fully extended position rather than holding a mid-stroke load. The CA back cover provides a rear pivot, and because this version lacks the -S magnet, it cannot support position sensors.
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