Airtac MTF Mini Cylinder MTF25X150SU
The AirTAC Airtac MTF Mini Cylinder MTF25X150SU is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 150mm 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
- Stroke150 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF25X150SU
Delivering 153.6 N of net pull force at 0.5 MPa, this AirTAC MTF25X150SU is a JIS-standard round-body mini cylinder built for single-acting tension and fail-safe-open tasks. The internal spring constantly holds the 10 mm rod extended, while supplying air to the 1/8 inch port retracts it. Because it loses air pressure gracefully by driving back out to the extended rest state, it perfectly suits spring-open / air-close mechanisms.
The SUS304 stainless steel barrel shrugs off mild washdown environments, and the riveted aluminium covers yield a shorter installed footprint than an equivalent ISO 6432 unit. This specific U flat-end rear cover variant includes a built-in piston magnet (-S), enabling direct mounting of CMSG, DMSG, or EMSG electronic switches. End-of-stroke deceleration relies on fixed TPU bumper pads rather than an adjustable cushion. For practical sizing, the 153.6 N rating translates to a safe working load of about 92 N, or roughly 7.8 kg of vertical lift with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF25X150SU Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF25X150SU |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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 MTF25X150SU
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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 MTF25X150SU Is Used
Tensioning Systems
Uses the 153.6 N pull force to maintain constant belt or web tension, releasing the load automatically to the extended position if air pressure drops.
Fail-Safe-Open Gates
Holds a barrier retracted via air pressure; upon air loss, the internal spring snaps the 150 mm stroke back out to physically open the gate.
Carton Flap Closing
Pulls packaging flaps down during transit on a conveyor, relying on the spring-extended rest state to clear the path when the line halts.
Is the Airtac MTF Mini Cylinder MTF25X150SU the Right Cylinder?
When sizing this 25 mm bore, evaluate the adjacent options: step down to the MTF20 for 93.4 N @0.5 MPa if loads are light, or step up to the MTF32 for 266.8 N @0.5 MPa when heavier retraction is needed. Ensure your air supply stays at or above the 0.2 MPa floor required to overcome the internal spring. The U flat-end back cover pairs seamlessly with LB foot, FA flange, SDB pivot, or TC trunnion mounts. Thanks to the -S suffix, this unit is fully sensor-ready for CMSG, DMSG, and EMSG 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 MTF25X150SU 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 return spring, with a maximum limit of 1.0 MPa.
The spring constantly extends the rod, so an air loss drives the rod to the fully extended position rather than holding a mid-stroke load. The -S suffix denotes a built-in magnet, allowing CMSG, DMSG, or EMSG switches to track piston position.
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