Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X250
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X250 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 MFCD40X250
Twin rods exit both covers of the AirTAC MFCD40X250, yielding equal 527.8 N thrust in both directions at 0.5 MPa while actively resisting side-play. A needle-set variable air cushion at each end absorbs end-of-stroke shock, keeping high-speed 30-800 mm/s motion smooth and quiet across the 250 mm travel.
Built as a JIS-standard round-body mini cylinder, the SUS304 stainless barrel and riveted aluminium covers supply mild washdown resistance. For the same bore and stroke, this riveted body is shorter than an ISO 6432 cylinder, saving valuable machine space. This non-magnet SKU cannot host a sensor; adding the -S option enables CMSG, DMSG or EMSG switches. The 1/4" port and M14x1.5 male rod threads handle robust pneumatic flow. A practical safe working load is about 317 N, which translates to a 2:1 vertical lift margin of roughly 26.9 kg each way.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X250 Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X250 |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 MFCD40X250
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 MFCD40X250 Is Used
Twin-Tool Stamping
Drives a 250 mm stroke stamping head from both ends, using the 527.8 N bidirectional force to form light metal while the second rod stabilizes the die.
High-Speed Diverting
Pushes packages across a belt at up to 800 mm/s, relying on the needle-set air cushions to halt the 40 mm bore smoothly without slamming.
Vertical Lift Gate
Raises and lowers a 25 kg material gate with a safe 2:1 margin, using the twin rods to keep the load perfectly aligned without twisting.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X250 the Right Cylinder?
Choose the MFCD40X250 over the smaller MFCD32 (345.6 N at 0.5 MPa) when your application needs heavier bidirectional force or a robust 16 mm rod on both ends. The 250 mm stroke excels in high-speed pick-and-place where the twin rods prevent tool rotation and the adjustable air cushions protect payloads from slamming. Foot (LB), flange (FA) and trunnion (TC) mounts fit this body; because a rod exits the back, there is no SDB or back-cover option.
Remember that the air cushion only decelerates the piston near the stroke end—it is not a brake. If the air supply drops or the valve centers, the load will drift. For vertical or safety-critical holding, install an external rod lock or a pilot-operated check valve. Also note this specific SKU lacks a magnet, so position sensing requires switching to the -S variant.
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 MFCD40X250 FAQ
The MFCD40X250 provides 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" port and has M14x1.5 male rod threads on both ends.
This specific SKU lacks a magnet and cannot take a sensor; you must order the -S variant for CMSG, DMSG or EMSG switches. The variable air cushions at both ends only decelerate the piston near stroke end to reduce shock—they do not lock or hold the load. For position holding on air loss, use an external rod lock or pilot check valve.
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