Airtac MTF Mini Cylinder MTF40X150SCM
The AirTAC Airtac MTF Mini Cylinder MTF40X150SCM 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
- 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 MTF40X150SCM
Delivering a substantial 434.8 N of net pull force at 0.5 MPa, this JIS-standard round-body mini cylinder is built for heavy-duty tensioning and retraction tasks. The MTF40X150SCM features a SUS304 stainless steel barrel with riveted aluminium covers, giving it a shorter overall mounting length than a comparable ISO 6432 unit while resisting mild corrosion and washdown environments. It operates as a single-acting pull type: an internal spring holds the rod extended at rest, and supplying air to the 1/4 inch port retracts the 16 mm rod. With a safe working load of roughly 261 N, it can vertically lift or hold about 22.2 kg with a 2:1 safety margin.
This specific configuration includes a built-in piston magnet (the -S suffix) for position sensing with CMSG, DMSG, or EMSG switches, and a CM round-end rear cover. Because the spring constantly drives the rod outward, the cylinder naturally fails to the extended position upon air loss, making it ideal for spring-open, air-close operations. End-of-stroke deceleration is handled by fixed TPU bumper pads rather than an adjustable cushion. The unit requires a minimum operating pressure of 0.2 MPa to overcome the spring force and function correctly.
Airtac MTF Mini Cylinder MTF40X150SCM Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X150SCM |
|---|---|
| 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 MTF40X150SCM
| 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 MTF40X150SCM Is Used
Heavy Cable Tensioning
Uses the 434.8 N pull force to draw and maintain tension on heavy cabling or webbing, releasing the tension only when air is supplied to retract the rod.
Fail-Safe Gate Closure
Keeps industrial safety gates or heavy valves securely closed via the internal spring, using the 150 mm stroke to pull the latch open only when pressurized.
Vertical Load Retraction
Lifts or retracts loads up to 22.2 kg vertically against gravity, relying on the spring to safely lower the weight to the extended rest position upon air loss.
Is the Airtac MTF Mini Cylinder MTF40X150SCM the Right Cylinder?
When sizing this 40 mm bore model, evaluate your tension requirements against its 434.8 N pull at 0.5 MPa. If your application needs less force, stepping down to the MTF32 yields 266.8 N at the same pressure; since 40 mm is the largest bore in the MTF family, exceeding this capacity requires a different cylinder series altogether. Choose this single-acting pull cylinder for mechanisms that must fail-safe to the extended position, such as holding gates closed or tensioning cables, ensuring the spring takes over if air pressure drops below the 0.2 MPa floor.
Mounting flexibility is extensive, with options for LB foot, FA flange, SDB pivot-block, and TC trunnion setups. The included -S magnet enables electronic or reed switch integration, and the CM round-end back cover suits standard rear pivot installations. Thread options include PT (default), G, or NPT(T) to match your existing pneumatic fittings.
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 MTF40X150SCM FAQ
This 40 mm bore cylinder provides a net pull force of 434.8 N at 0.5 MPa and 645.8 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal return spring, with a maximum pressure of 1.0 MPa and a proof pressure of 1.5 MPa. The 1/4 inch port supplies air to retract the 16 mm rod.
The internal spring constantly extends the rod, meaning the cylinder fails to the fully extended position if air pressure is lost. It cannot hold a load at an arbitrary mid-stroke point; for that, a double-acting MF cylinder with an external rod lock is required. The -S magnet on this unit allows CMSG, DMSG, or EMSG sensors to track the extended and retracted states.
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