Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X50S
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X50S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 MFCD40X50S
Twin rods exit both covers of the AirTAC MFCD40X50S, delivering equal 527.8 N thrust at 0.5 MPa in both directions while steadying the load against rotation. This JIS-standard round-body mini cylinder uses a SUS304 stainless barrel with riveted aluminium covers, offering a shorter mounting envelope than an ISO 6432 unit of the same bore and stroke.
Adjustable needle air cushions at each end absorb end-of-stroke shock across the 30-800 mm/s speed range. The included -S magnet supports CMSG, DMSG or EMSG sensors, and the 1/4" port feeds the 40 mm bore for a safe working load of about 317 N or a 26.9 kg vertical lift with a 2:1 margin.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X50S Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X50S |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MFCD40X50S
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MFCD40X50S Is Used
Twin-Tool Transfer
Drives a dual-gripper transfer arm at high speed, using the second rod to mount a stopper while the needle cushions absorb end-of-stroke shock.
Anti-Rotate Divertor
Pushes heavy cartons sideways across a belt; the twin rods prevent twist under offset loads and deliver 527.8 N of force in both directions.
Vertical Lift Stop
Raises and lowers a 26 kg pallet layer with a 2:1 safety margin, relying on equal rod-side thrust and smooth cushioned deceleration.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X50S the Right Cylinder?
Choose the MFCD40 over the smaller MFCD32 (345.6 N at 0.5 MPa) when your application needs higher双向 force to move heavier jigs without torsional deflection. The twin rods and variable air cushions at both ends excel in high-speed, shock-sensitive twin-tool setups, providing equal push and pull thrust while resisting side-play.
Remember that the air cushion only decelerates the piston near the stroke end; it does not lock or hold the load. If air pressure drops, the piston will drift, so fit an external rod lock or pilot check valve for suspended loads. Mounting options include LB foot, FA flange or TC trunnion (no SDB), and the -S magnet allows direct sensor mounting on the back rod.
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 MFCD40X50S FAQ
The 40 mm bore has a 1/4" port and generates 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa in both directions, with a theoretical max of 107.6 kgf at 1.0 MPa. Force is equal both ways because the double-rod design uses the same rod-side area for push and pull.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG sensors. However, the variable air cushions only decelerate the piston near the stroke end; they do not act as a brake, so the cylinder will drift on air loss. Use an external rod lock or pilot check valve to hold suspended loads.
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