Airtac MTF Mini Cylinder MTF40X150SCA
The AirTAC Airtac MTF Mini Cylinder MTF40X150SCA is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm stroke, 1/4" 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.
- BoreØ40 mm
- Stroke150 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF40X150SCA
Delivering a robust 434.8 N of pull force at 0.5 MPa, this JIS-standard round-body mini cylinder is engineered for heavy-duty tensioning and air-close applications. The MTF40X150SCA features a SUS304 stainless steel barrel with riveted aluminium covers, providing excellent resistance to mild corrosion and washdown environments. Because it is a single-acting pull type, an internal spring holds the rod extended at rest; supplying air to the 1/4" port retracts the 16 mm rod. This fail-safe design automatically drives the rod back out to the extended position if air pressure drops below the 0.2 MPa floor.
For sizing, the quoted pull force is already net of the spring, yielding a safe working load of roughly 261 N. This translates to an effective vertical lift capacity of about 22.2 kg when applying a 2:1 safety margin. The built-in -S magnet enables position sensing with CMSG, DMSG, or EMSG switches, while the CA rear pivot cover simplifies articulated mounting. Fixed TPU bumper pads absorb end-of-stroke impact across the 50-800 mm/s speed range.
Airtac MTF Mini Cylinder MTF40X150SCA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X150SCA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø40mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 434.8 N |
| 0.7 MPa | 645.8 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 MTF40X150SCA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | 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 MTF40X150SCA Is Used
Heavy-Duty Tensioning
Applies up to 434.8 N of pulling force at 0.5 MPa to keep drive belts or cables taut, using air to release the tension and the spring to maintain it.
Fail-Safe Valve Actuation
Holds a process valve open via spring force and uses the 1/4" air port to pull it closed, ensuring the valve defaults to the open position during a pneumatic shutdown.
Spring-Return Lifting
Lifts or holds loads up to 22.2 kg vertically with a 2:1 safety margin, relying on air to pull the 16 mm rod and lower the load safely.
Is the Airtac MTF Mini Cylinder MTF40X150SCA the Right Cylinder?
Choose this 40 mm bore if your mechanism requires a spring-open, air-close action that fails safely to the extended position on air loss. It provides 645.8 N of pull at 0.7 MPa, but if your system operates at 0.5 MPa and needs less force, step down to the MTF32 which provides 266.8 N. Since 40 mm is the largest bore in the MTF family, exceeding this capacity requires a different cylinder series. Ensure your air supply can reliably overcome the internal spring by maintaining at least the 0.2 MPa operating floor.
The integrated -S magnet allows seamless fitment of CMSG, DMSG, or EMSG sensors for end-of-stroke detection. Mounting is straightforward with the included CA back cover pivot, and you can utilize LB foot, FA flange, SDB pivot-block, or TC trunnion brackets. Remember that fixed TPU bumper pads manage end-stop deceleration rather than an adjustable air cushion.
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 MTF40X150SCA FAQ
This single-acting pull cylinder generates 434.8 N of pull force at 0.5 MPa and 645.8 N at 0.7 MPa. These figures are net of the internal 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.
The internal spring constantly extends the rod, so if air pressure is lost, the cylinder fails safely to the fully extended position. It cannot hold a mid-stroke load. The -S variant includes a built-in magnet for position detection using CMSG, DMSG, or EMSG switches.
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