Airtac MTF Mini Cylinder MTF25X40CA
The AirTAC Airtac MTF Mini Cylinder MTF25X40CA is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 40mm 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
- Stroke40 mm
- Port size1/8"
- Acting typeSingle acting, pull (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 MTF Mini Cylinder MTF25X40CA
Generating 153.6 N of pull at 0.5 MPa, this AirTAC MTF25X40CA mini cylinder is engineered for single-acting tension and air-close operations. An internal spring holds the piston rod in the extended position, while supplying air to the 1/8" port retracts it. Because the spring constantly drives the rod outward, the cylinder automatically fails to the extended state upon air loss, making it ideal for fail-safe open mechanisms. The quoted 153.6 N pull force is already net of the spring resistance.
Built as a JIS-standard round-body unit, it features a SUS304 stainless steel barrel and riveted aluminium covers that resist mild corrosion and washdown environments. For the same 25 mm bore and 40 mm stroke, this riveted construction is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length. This specific SKU lacks a magnet and cannot support position sensing; adding the -S option enables CMSG, DMSG, or EMSG switches. End-of-stroke deceleration is handled by fixed TPU bumper pads rather than an adjustable air cushion. With a 0.5 MPa pull force, it provides a safe working load of roughly 92 N, capable of vertically lifting about 7.8 kg with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF25X40CA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF25X40CA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MTF25X40CA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MTF25X40CA Is Used
Spring-Return Tensioning
Maintains constant tension on belts or filaments using the internal spring, utilizing the 153.6 N air pull to reset the take-up arm when needed.
Fail-Safe Open Gate
Keeps a guard or valve physically open via spring force, using the 1/8" air port to pull the mechanism closed during automated cycles.
Vertical Load Retraction
Lifts and holds light fixtures weighing up to 7.8 kg against gravity, relying on air to pull the load down while the spring safely extends it.
Is the Airtac MTF Mini Cylinder MTF25X40CA the Right Cylinder?
Choose this 25 mm bore if your mechanism requires a spring-open, air-close action with a mid-range pull force. When sizing both ways, stepping down to the MTF20 yields 93.4 N of pull at 0.5 MPa, while stepping up to the MTF32 provides 266.8 N. This model delivers 236 N at 0.7 MPa, but remember the system requires a minimum 0.2 MPa operating pressure to overcome the internal spring. The integrated CA back cover provides a rear pivot mount, which pairs well with FA flanges or LB foot brackets for versatile installation. Because this configuration omits the -S magnet, it cannot accommodate magnetic sensors; choose the -S variant if you need CMSG or DMSG switches for position feedback.
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 MTF25X40CA FAQ
The single-acting pull force is 153.6 N at 0.5 MPa and 236 N at 0.7 MPa. These figures are net of the spring. It requires a minimum operating pressure of 0.2 MPa to overcome the spring and retract the rod, with a maximum pressure of 1.0 MPa.
No, this specific SKU does not include a magnet, so CMSG, DMSG, or EMSG switches cannot be used. You must select the -S variant for position sensing. Additionally, the internal spring ensures the rod fails to the extended position on air loss, meaning it cannot hold a mid-stroke load.
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