Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X40
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X40 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 40mm stroke, 1/8" 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.
- BoreØ20 mm
- Stroke40 mm
- Port size1/8"
- Acting typeDouble acting, double rod + cushion
- Rod threadM8×1.25
- 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 MFCD20X40
Needle-set air cushions at both ends define the AirTAC MFCD20X40, a JIS-standard round-body mini cylinder built for smooth, shock-free motion at high speed. The SUS304 stainless barrel and riveted aluminium covers form a compact body that is shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length while resisting mild corrosion and washdown.
As a double-acting, double-rod unit, a piston rod exits both covers to deliver equal force both ways—131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa. This twin-rod layout steadies the load, resists rotation, and lets you mount a stopper or second tool on the back rod. With a 1/8" port and an 8 mm rod each end, it yields a safe working load of roughly 79 N, lifting about 6.7 kg vertically with a 2:1 margin.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X40 Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X40 |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 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 MFCD20X40
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 20 | 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 MFCD20X40 Is Used
Twin-Tool Transfer
Mounts a second tool on the back rod to push and pull a 6 kg electronics tray back and forth at high speed, relying on the equal both-ways force and needle cushions to absorb end impact.
Anti-Rotation Stamping
Drives a small 79 N stamping head where the twin 8 mm rods prevent twist under off-center loads, ensuring the cushioned stroke lands perfectly flat every cycle.
Compact Lane Divertor
Fits into tight machine frames shorter than an ISO 6432 unit, using its 40 mm stroke and 1/8" port to quickly divert light packaging without end-of-stroke slamming.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X40 the Right Cylinder?
Choose the MFCD20X40 when you need 131.9 N of force at 0.5 MPa in a compact footprint; step up to the MFCD25 (206.1 N at 0.5 MPa) if your load exceeds the 20 mm bore class. The variable air cushion soaks up end-of-stroke shock at speeds of 30-800 mm/s, but it only decelerates the piston—it does not lock or hold the load on air loss. For position holding, add an external rod lock or pilot check valve.
This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors. Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover code, since a rod exits both ends).
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 MFCD20X40 FAQ
The MFCD20X40 delivers equal force both ways (rod-side area) because it is a double-rod cylinder: 131.9 N at 0.5 MPa, 184.7 N at 0.7 MPa, and a theoretical max of 26.9 kgf at 1.0 MPa. The air port is 1/8".
No. The variable air cushion only decelerates the piston near stroke end; it is not a lock or brake, so the load drifts on air loss. Also, this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors. The twin rods do provide anti-rotation stability.
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1-Year Warranty
Covers non-human-caused product damage.
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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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