Airtac MTF Mini Cylinder MTF40X15CA
The AirTAC Airtac MTF Mini Cylinder MTF40X15CA is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF40X15CA
Delivering 434.8 N of pull at 0.5 MPa, this AirTAC MTF40X15CA is a JIS-standard round-body mini cylinder built for single-acting pull operations. An internal spring constantly pushes the 16 mm rod out to its extended rest state, while supplying air to the 1/4 inch port retracts it against the load. Because the spring holds the rod out, any loss of air pressure automatically drives the cylinder to the extended position, providing a mechanical fail-safe for spring-open tasks. The quoted force is already net of the spring resistance.
The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments, making it more compact in overall length than a comparable ISO 6432 unit. This specific SKU lacks the -S magnet option, so it cannot accept CMSG, DMSG, or EMSG position sensors. End-of-stroke deceleration is handled by fixed TPU bumper pads rather than an adjustable cushion. For sizing context, its 434.8 N pull at 0.5 MPa yields a safe working load of about 261 N, or roughly 22.2 kg of vertical lift with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF40X15CA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X15CA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 MTF40X15CA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 MTF40X15CA Is Used
Heavy-Duty Tensioning
Uses the 434.8 N pull at 0.5 MPa to draw back heavy belting or wire meshes, releasing the tension safely only when air pressure is removed.
Fail-Safe Open Valves
Keeps process valves physically open via spring force, using the 1/4 inch air port to pull the 16 mm rod closed only during active system cycling.
Pivot-Mounted Retractor
Leverages the CA rear pivot to swing packages out of the conveyor lane, pulling the 15 mm stroke back to clear the path on command.
Is the Airtac MTF Mini Cylinder MTF40X15CA the Right Cylinder?
When sizing this 40 mm bore unit, consider that the next size down, the MTF32, provides 266.8 N of pull at 0.5 MPa; if your load requires more tensioning force, this MTF40 is the largest available bore in the series. It is ideally suited for spring-open, air-close applications like tensioning or clamping, where the CA rear pivot mount accommodates articulating linkages. Ensure your air supply provides at least the 0.2 MPa floor required to overcome the internal spring before retracting the rod. Since this configuration ships without a magnet, you must select an -S variant if your control system requires position feedback via 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 MTF40X15CA FAQ
This single-acting 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.
Because it is a spring-return pull cylinder, a loss of air pressure causes the spring to drive the rod to the fully extended position. It cannot hold an arbitrary mid-stroke load; for that, a double-acting MF cylinder with an external rod lock is required. Note that this non-S SKU cannot mount position sensors.
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