Airtac MTF Mini Cylinder MTF25X125SCA
The AirTAC Airtac MTF Mini Cylinder MTF25X125SCA is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 125mm 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
- Stroke125 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF25X125SCA
Operating as a single-acting pull cylinder, this AirTAC MTF25X125SCA relies on an internal spring to push the rod out, while compressed air retracts it. Built as a JIS-standard round-body mini cylinder with a SUS304 stainless barrel and riveted aluminium covers, it offers a shorter mounting envelope than an ISO 6432 unit of the same bore and stroke. The spring-return design ensures the rod fails to the extended position upon air loss, making it ideal for spring-open, air-close tasks.
At its core, the 25 mm bore generates a net pull force of 153.6 N at 0.5 MPa and 236 N at 0.7 MPa, utilizing a 1/8 inch port and an M10x1.25 male rod thread. The quoted forces are already net of the spring resistance, requiring a minimum 0.2 MPa operating pressure to overcome it. For practical sizing, this translates to a safe working load of roughly 92 N, or the ability to vertically lift about 7.8 kg with a 2:1 safety margin. The CA pivot back cover facilitates rear articulation, and the integrated magnet (-S) supports CMSG, DMSG, or EMSG position sensing.
Airtac MTF Mini Cylinder MTF25X125SCA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF25X125SCA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 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 MTF25X125SCA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 MTF25X125SCA Is Used
Tension Control
Applies up to 236 N of retraction force at 0.7 MPa to maintain tension on belts or filaments, releasing the load safely to the extended position if air pressure drops.
Fail-Safe Open Valving
Uses the internal spring to hold a valve open by default; applying air retracts the 10 mm rod to close it, ensuring system safety during power loss.
Package Reject Gate
Pulls a diverter gate out of the conveyor path using 153.6 N at 0.5 MPa, allowing the spring to snap the gate back into the blocking position when the signal ceases.
Is the Airtac MTF Mini Cylinder MTF25X125SCA the Right Cylinder?
When sizing this unit, evaluate the force bracket on both sides: the smaller MTF20 bore provides 93.4 N of pull at 0.5 MPa, while the larger MTF32 offers 266.8 N. If your application requires roughly 92 N of safe working load (60 percent of the 153.6 N figure at 0.5 MPa), this 25 mm bore is the optimal fit. It is specifically tailored for tensioning, clamping, or fail-safe-open mechanisms where the spring must maintain the extended position without air.
Ensure your air supply can maintain at least the 0.2 MPa floor required to pull the rod back against the spring, up to the 1.0 MPa maximum. The fixed TPU bumper pads absorb end-of-stroke impacts across the 50-800 mm/s speed range. Thanks to the -S magnet option, you can directly mount CMSG, DMSG, or EMSG sensors for stroke confirmation, and the CA back cover provides a robust pivot point for angular mounting requirements.
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 MTF25X125SCA FAQ
This 25 mm bore cylinder provides a net pull force of 153.6 N at 0.5 MPa and 236 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal spring, with a maximum pressure limit of 1.0 MPa and a proof pressure of 1.5 MPa.
The spring constantly drives the rod to the extended position, meaning air is only used to retract it. If air pressure is lost, the cylinder fails safely to the extended state. It cannot hold a mid-stroke load; for that, a double-acting MF cylinder with an external rod lock is required.
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