
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X500 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 500mm 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.
Twin rods exiting both SUS304 stainless covers give this JIS-standard round-body mini cylinder equal force in both directions, completely eliminating side-play and resisting rotation. An adjustable needle-set air cushion at each end soaks up high-speed end-of-stroke shock, ensuring quiet deceleration. Because a rod exits the rear, there is no back cover and no SDB mount option.
Delivering 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa through its 1/4" port, this 40 mm bore variant handles heavy twin-tool loads. The 500 mm stroke exceeds the 300 mm standard, making it a non-standard, made-to-order item. It provides a safe working load of about 317 N, or a vertical lift of roughly 26.9 kg with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot take CMSG, DMSG or EMSG sensors.
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X500 |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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.
| 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).
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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.
Drives a matched pair of stamping heads with equal 527.8 N force in both directions, using the double rod to keep the tools perfectly aligned during high-speed impact.
Extends a 500 mm sweep arm across a wide belt; the needle-set air cushion decelerates the heavy 40 mm bore mechanism smoothly at the end of the long travel.
Raises and lowers a 26 kg pallet stopper blade, relying on the twin rods to resist twisting under offset loads while the cushion softens the high-speed return.
When choosing between the available bores, compare this MFCD40 against the MFCD32. The 32 mm bore yields 345.6 N at 0.5 MPa, while this 40 mm bore provides 527.8 N at 0.5 MPa. Select the 40 mm bore when driving heavier twin-tool assemblies or high-speed grippers that need maximum thrust both ways. The variable air cushion is essential for absorbing shock at high travel speeds, but remember it only decelerates near the stroke end—it is not a lock. If the application must hold a vertical load on air loss, install an external rod lock or pilot check valve, as the piston will drift. Mount via LB foot, FA flange or TC trunnion.
Quick checklist
This 40 mm bore double-acting, double-rod cylinder uses a 1/4" port and generates equal force both ways: 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a theoretical maximum of 107.6 kgf at 1.0 MPa.
This specific SKU has no -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. The variable air cushion at both ends only decelerates motion near the stroke end; it does not lock or hold the load. For position holding on air loss, use an external rod lock or pilot check valve.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
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