Airtac MTF Mini Cylinder MTF40X75U
The AirTAC Airtac MTF Mini Cylinder MTF40X75U 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 MTF40X75U
Delivering a robust 434.8 N of net pull force at 0.5 MPa, the AirTAC MTF40X75U is a JIS-standard round-body mini cylinder engineered for single-acting pull operation. An internal spring constantly pushes the 16 mm rod to its extended state, while supplying air to the 1/4" port retracts it against the load. Because the spring actively holds the rod out, this cylinder fails safely to the extended position upon air loss, making it ideal for spring-open or air-close mechanisms.
The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments while keeping the overall body shorter than a comparable ISO 6432 unit. This specific SKU lacks the -S magnet option and therefore cannot accept CMSG, DMSG, or EMSG position sensors. For sizing context, the effective vertical lift capacity is roughly 22.2 kg when applying a 2:1 safety margin to the 0.5 MPa output, and it relies on fixed TPU bumper pads for end-of-stroke deceleration.
Airtac MTF Mini Cylinder MTF40X75U Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X75U |
|---|---|
| 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 MTF40X75U
| 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 MTF40X75U Is Used
Tensioning Mechanisms
Pulls and maintains tension on belts or filaments with up to 434.8 N of force, automatically reverting to the extended position to slacken the line if air pressure drops.
Air-Close Gates
Holds a gate open via its internal spring and utilizes the 1/4" port to pneumatically pull the 16 mm rod inward, securely closing heavy access panels.
Fail-Safe Lifting
Raises a 22.2 kg load using a 2:1 safety margin at 0.5 MPa, ensuring the mechanism extends outward to a safe resting state rather than collapsing during an air failure.
Is the Airtac MTF Mini Cylinder MTF40X75U the Right Cylinder?
When sizing this 40 mm bore unit, evaluate your tension requirements against its 434.8 N pull at 0.5 MPa. If your application demands less force, stepping down to the MTF32 yields 266.8 N at the same pressure; since 40 mm is the largest available bore in this series, exceeding 645.8 N at 0.7 MPa requires a different cylinder family entirely. Operating pressure must stay at or above the 0.2 MPa floor to successfully overcome the internal spring.
This U flat-end rear cover model is tailored for direct mounting scenarios where a standard back cover is preferred. It is important to note that because this configuration omits the -S magnet, it cannot support magnetic sensing. If your cycle requires position feedback, you must select the -S variant to enable CMSG, DMSG, or EMSG switches, and you can utilize LB foot, FA flange, SDB pivot, or TC trunnion mounts for installation.
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 MTF40X75U FAQ
This single-acting pull 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 retract the rod.
The internal spring constantly extends the rod, meaning the cylinder fails to the fully extended position upon air loss. It cannot hold an arbitrary mid-stroke load, as the spring is not a controllable brake; for mid-stroke holding, a double-acting MF cylinder with an external rod lock is required.
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