Airtac MTF Mini Cylinder MTF25X150U
The AirTAC Airtac MTF Mini Cylinder MTF25X150U 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 MTF25X150U
Delivering a net pull of 153.6 N at 0.5 MPa (236 N at 0.7 MPa), this single-acting pull cylinder uses internal air to retract a 10 mm rod that a spring normally holds extended. The MTF25X150U features a JIS-standard round-body build with a SUS304 stainless barrel and riveted aluminium covers, making its overall length shorter than a comparable ISO 6432 unit while resisting mild washdown corrosion. It operates on a 1/8" port with an M10x1.25 male rod thread.
Because the spring constantly pushes outward, the cylinder fails safely to the extended position upon air loss, making it ideal for spring-open/air-close tasks. At 0.5 MPa, the effective pull is roughly 15.7 kgf; applying a 2:1 safety margin means it can reliably tension or lift about 7.8 kg. This specific SKU lacks the -S magnet option, so it cannot host CMSG, DMSG, or EMSG position sensors.
Airtac MTF Mini Cylinder MTF25X150U Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF25X150U |
|---|---|
| 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 MTF25X150U
| 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 MTF25X150U Is Used
Tensioning Systems
Pulls with a safe working load of about 92 N to maintain web tension, releasing the load safely outward if air pressure drops.
Gravity Drop Gates
Uses the 153.6 N @0.5 MPa pull force to close heavy lids, relying on the spring to force the gate back open on air loss.
Rejecter Arms
Retracts a diverter arm to pull items off a belt, with the spring automatically extending the arm to a safe rest position.
Is the Airtac MTF Mini Cylinder MTF25X150U the Right Cylinder?
When sizing this 25 mm bore, compare its 153.6 N @0.5 MPa pull force against the smaller MTF20 (93.4 N) or the larger MTF32 (266.8 N) to match your tensioning load. The single-acting pull design fits applications needing a fail-safe extended state, requiring at least 0.2 MPa of air pressure to overcome the return spring. Mounting is versatile via LB foot, FA flange, SDB pivot, or TC trunnion brackets, and this U-variant includes a flat-end back cover. For position feedback, switch to an -S magnet version to enable CMSG, DMSG, or 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 MTF25X150U FAQ
It provides a net pull force of 153.6 N at 0.5 MPa and 236 N at 0.7 MPa. The operating pressure range is 0.2-1.0 MPa, with a minimum 0.2 MPa required to overcome the internal spring, and a proof pressure of 1.5 MPa.
The spring constantly holds the rod extended, so air is only used to pull it in. If air pressure is lost, the spring drives the rod back out to the fully extended position; it cannot hold a mid-stroke load. This U-variant also lacks a magnet for CMSG/DMSG/EMSG sensors.
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