Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X400S
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X400S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 400mm 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
- Stroke400 mm
- Port size1/4"
- Acting typeDouble acting, double rod + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X400S
Needle-set variable air cushions at both ends absorb high-speed end-of-stroke shock on this 40 mm bore, 400 mm stroke double-rod mini cylinder. As a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, it provides equal 527.8 N force in both directions via a 16 mm rod exiting each cover, resisting rotation and enabling twin-tool mounting.
This -S variant includes a piston magnet for CMSG, DMSG or EMSG sensors. It uses a 1/4" port and M14x1.5 male rod threads. The 400 mm stroke exceeds the 300 mm standard, making it a made-to-order item. For a safe working load, expect about 317 N (roughly 60% of the 0.5 MPa figure), or a vertical lift of about 26.9 kg with a 2:1 margin.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X400S Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X400S |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 MFCD40X400S
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MFCD40X400S Is Used
Twin-Tool Machining
Drives a dual-end machining fixture where the second rod mounts a stopper, maintaining equal 527.8 N thrust both ways during high-speed part clamping.
Long-Stroke Diverting
Pushes items across a wide conveyor using the 400 mm stroke, relying on variable air cushions to halt the 16 mm rods smoothly without shock.
Vertical Lift Station
Lifts approximately 26.9 kg of packaged goods vertically with a 2:1 safety margin, using the twin rods to prevent load twist during transit.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X400S the Right Cylinder?
When sizing this double-acting unit, compare the 527.8 N @0.5 MPa output of this 40 mm bore against the smaller MFCD32 at 345.6 N @0.5 MPa. Choose the 40 mm bore when moving heavier jigs or absorbing high-speed shocks, as the adjustable air cushion at each end smooths deceleration. The twin rods steady the load and cut side-play.
Remember that the air cushion only decelerates near the stroke end and does not lock the piston; if air pressure drops, the load drifts. Use an external rod lock or pilot check valve for position holding. Mount via LB foot, FA flange or TC trunnion (no SDB). The -S magnet enables position sensing.
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 MFCD40X400S 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 uses a 1/4" port and M14x1.5 male rod threads.
No, the variable air cushion only decelerates near stroke end and is not a lock; the piston drifts on air loss. This -S variant has a magnet for CMSG/DMSG/EMSG sensors, and the twin rods provide anti-rotation.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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