Airtac MFD Double Rod Miniature Cylinder MFD40X75S
The AirTAC Airtac MFD Double Rod Miniature Cylinder MFD40X75S is a genuine double acting, double rod 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 typeDouble acting, double rod
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MFD Double Rod Miniature Cylinder MFD40X75S
Twin rods exiting both covers give the AirTAC MFD40X75S equal force in both directions, outputting 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. This JIS-standard round-body mini cylinder uses a SUS304 stainless barrel with riveted aluminium covers, offering a shorter mounting length than an ISO 6432 unit for the same 40 mm bore and 75 mm stroke.
The second rod steadies the load to cut side-play, and this -S variant includes a piston magnet for CMSG, DMSG or EMSG switches. With a 1/4" port and M14x1.5 male rod threads, it handles a safe working load of about 317 N. Note that fixed TPU bumper pads decelerate the stroke end, but the piston drifts on air loss—use an external rod lock to hold a load.
Airtac MFD Double Rod Miniature Cylinder MFD40X75S Technical Specifications
| Model | Airtac MFD Double Rod Miniature Cylinder MFD40X75S |
|---|---|
| Series | MFD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting, double rod |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 300 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MFD Double Rod Miniature Cylinder MFD40X75S
| MFD | JIS-standard round-body mini cylinder (double-rod). |
|---|---|
| 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 MFD Double Rod Miniature Cylinder MFD40X75S Is Used
Twin-Tool Transfer
Drive two grippers at once using both rod ends, leveraging the 527.8 N force to shuttle parts horizontally without rotational play.
Dual-End Sensing
Mount CMSG or DMSG switches on the back rod to confirm stroke position while the front rod handles the 317 N working load.
Anti-Rotation Stopper
Use the twin rods as a guided stopper gate in a 40 mm bore assembly line, ensuring the load resists twisting under impact.
Is the Airtac MFD Double Rod Miniature Cylinder MFD40X75S the Right Cylinder?
Choose the MFD40 over the MFD32 when you need more push and pull: the 40 mm bore delivers 527.8 N at 0.5 MPa versus 345.6 N for the 32 mm. The double-rod build is ideal for anti-rotation slides or mounting a second tool, and the -S magnet enables position sensing. Mount via LB foot, FA flange or TC trunnion (no SDB), and remember the bumpers only decelerate; they do not lock the load.
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 0.15 – 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 MFD Double Rod Miniature Cylinder MFD40X75S FAQ
The MFD40X75S delivers equal force in both directions: 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a theoretical max of 107.6 kgf at 1.0 MPa. It uses a 1/4" air port.
The -S means it has a built-in magnet for CMSG, DMSG or EMSG switches. It has fixed TPU bumper pads for end-of-stroke deceleration, not an adjustable air cushion. The twin rods provide equal force and anti-rotation.
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