Airtac MTF Mini Cylinder MTF40X75SCA
The AirTAC Airtac MTF Mini Cylinder MTF40X75SCA is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF40X75SCA
Delivering a robust 434.8 N of pull at 0.5 MPa, this JIS-standard round-body mini cylinder is engineered for single-acting tension and fail-safe-open tasks. The internal spring constantly drives the 16 mm rod outward, while supplying air to the 1/4 inch port retracts it. Because the MTF40X75SCA uses a SUS304 stainless barrel with riveted aluminium covers, it resists mild washdown corrosion while remaining shorter than a comparable ISO 6432 unit.
This specific SKU includes a built-in piston magnet (-S) for CMSG, DMSG, or EMSG sensors, and features a CA rear pivot cover. The quoted pull force is already net of the spring resistance. For a practical guideline, the safe working load is roughly 261 N, which means it can vertically lift or hold about 22.2 kg with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF40X75SCA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X75SCA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MTF40X75SCA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MTF40X75SCA Is Used
Tensioning Mechanisms
Uses the 434.8 N pull force to maintain strap or web tension, automatically relaxing to the extended position if the 0.2 MPa air supply drops.
Fail-Safe-Open Gates
Holds a heavy door closed via air retraction; the spring drives the 16 mm rod out to physically push the gate open upon air loss.
Vertical Load Retraction
Pulls a 22.2 kg load upward against gravity with a 2:1 safety margin, relying on the CA pivot to handle the resulting side loads.
Is the Airtac MTF Mini Cylinder MTF40X75SCA the Right Cylinder?
When sizing this 40 mm bore, compare its 434.8 N @0.5 MPa pull against the next size down: the MTF32 delivers 266.8 N @0.5 MPa. If your application requires less force, step down to the 32; since 40 is the largest MTF bore, heavier loads need a different cylinder family. Choose this single-acting pull model for spring-open / air-close mechanisms where air loss must force the rod out to the extended position. Remember the pressure floor is 0.2 MPa to overcome the spring. Mounting options include LB foot, FA flange, SDB pivot, or TC trunnion, and the -S magnet enables position sensing.
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 MTF40X75SCA 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 and begin retracting the rod.
The spring constantly extends the rod; air pressure only pulls it in, meaning the cylinder fails to the extended position on air loss. The -S option adds a piston magnet for CMSG, DMSG, or EMSG sensors. It uses fixed TPU bumper pads, not an adjustable cushion.
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