Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 40mm 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
- Stroke40 mm
- Port size1/4"
- Acting typeDouble acting, double rod + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S
Twin rods and needle-set air cushions define the AirTAC MFCD40X40S, a JIS-standard round-body mini cylinder built for high-speed, anti-rotation tasks. The SUS304 stainless barrel and riveted aluminium covers form a compact body that is shorter than an ISO 6432 unit for the same 40 mm bore and 40 mm stroke, saving valuable machine space while resisting mild washdown. A rod exits both covers, generating equal force both ways: 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical max of 107.6 kgf at 1.0 MPa.
Because the twin rods steady the load and cut side-play, you can mount a second tool or stopper on the back rod. The included -S magnet enables CMSG, DMSG and EMSG switches for position sensing. For sizing, a safe working load is roughly 317 N (about 60% of the 0.5 MPa figure), or a vertical lift of about 26.9 kg with a 2:1 margin. Air enters via a 1/4 inch port, and the variable cushions at each end absorb end-of-stroke shock without acting as a lock.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod + cushion |
| 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 | Variable air cushion, both ends |
| 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 MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S Is Used
Twin-Tool Stamping
Drives a dual-head stamping jig at high speed, using the 527.8 N bidirectional force to press and eject parts without rotating the tooling.
Dual-End Diverting
Pushes items from both sides of a conveyor line, relying on the adjustable air cushions to halt the 40 mm stroke quietly at 800 mm/s.
Vertical Lift Gate
Raises and lowers a light access gate, lifting about 26.9 kg each way with a 2:1 safety margin while the second rod prevents side-play.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S the Right Cylinder?
When choosing between this 40 mm bore and the smaller MFCD32 (345.6 N at 0.5 MPa), the MFCD40X40S provides a significant thrust upgrade to 527.8 N both ways, ideal if your twin-tool mechanism needs extra pushing and pulling force at speed. The variable air cushions at both ends soak up kinetic energy smoothly, but remember they only decelerate the piston near the stroke end; they do not hold the load. If air pressure drops, the piston will drift, so add an external rod lock or pilot check valve for vertical safety. Mounting options include LB foot, FA flange or TC trunnion (no SDB), and the -S magnet is already present for your sensors.
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 MFCD Double Rod Cushioned Mini Cylinder MFCD40X40S FAQ
It delivers equal force both ways: 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. The bore-fixed air port is 1/4 inch, and the male rod thread is M14x1.5.
The twin rods resist rotation and allow mounting a second tool on the back, while the variable air cushions at both ends decelerate the piston smoothly at high speeds. The -S magnet allows CMSG, DMSG and EMSG switches to track position.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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