Airtac MTF Mini Cylinder MTF25X30SU
The AirTAC Airtac MTF Mini Cylinder MTF25X30SU is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 30mm 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
- Stroke30 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 MTF25X30SU
Generating 153.6 N of net pull at 0.5 MPa, this JIS-standard round-body mini cylinder is built for single-acting tension and fail-safe-open tasks. The internal spring constantly pushes the 10 mm rod out to its extended rest position, while supplying air to the 1/8" port retracts it. Because the spring drives the rod out upon air loss, the mechanism naturally fails to the extended state.
The SUS304 stainless steel barrel and riveted aluminium covers yield a body notably shorter than an ISO 6432 unit of the same 25 mm bore and 30 mm stroke. This specific SKU includes a U flat-end back cover and a built-in piston magnet (-S), enabling CMSG, DMSG or EMSG position sensing. With a 0.5 MPa pull force, it handles a safe working load of roughly 92 N, which translates to lifting or holding about 7.8 kg vertically with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF25X30SU Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF25X30SU |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 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 MTF25X30SU
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×30 | 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 MTF25X30SU Is Used
Web Tensioning
Pulls a 7.8 kg tensioning idler back against packaging film when pressurized, releasing the web automatically to its extended rest position on air loss.
Fail-Safe-Open Gate
Holds a 25 mm bore diverter gate closed via 153.6 N of air pull; the internal spring forces the gate open if the air supply drops below 0.2 MPa.
Carton Flap Retract
Retracts a folding arm out of the carton path during the packaging cycle, relying on the spring to push the arm clear during machine jams.
Is the Airtac MTF Mini Cylinder MTF25X30SU the Right Cylinder?
If 92 N of safe working pull is insufficient, step up to the MTF32 bore (266.8 N @0.5 MPa); if your tensioning load is lighter, the MTF20 bore provides 93.4 N @0.5 MPa. This single-acting pull architecture is optimal for spring-open/air-close valves, film tensioning, and mechanisms that must return to the extended position during an air-loss event.
Operating pressure must stay at or above the 0.2 MPa floor to overcome the return spring, up to a maximum of 1.0 MPa. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets. The fixed TPU bumper pads absorb end-of-stroke impact across the 50-800 mm/s speed range, and the -S magnet allows solid-state or reed switch integration.
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 MTF25X30SU FAQ
The net pull force is 153.6 N at 0.5 MPa and 236 N at 0.7 MPa. The cylinder requires a minimum operating pressure of 0.2 MPa to overcome the internal spring, with a maximum pressure of 1.0 MPa and a proof pressure of 1.5 MPa.
The spring constantly extends the 10 mm rod; air pressure on the 1/8" port pulls it in. Upon air loss, the spring drives the rod to the fully extended position, so it cannot hold a mid-stroke load. The -S option adds a piston magnet for CMSG, DMSG, or EMSG switches.
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Covers non-human-caused product damage.
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