Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X80S
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X80S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 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 MFCD40X80S
Twin rods exit both covers of this JIS-standard round-body mini cylinder, delivering equal 527.8 N force in both directions at 0.5 MPa while steadying the load against rotation. The SUS304 stainless barrel and riveted aluminium covers form a compact body that is physically shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length. A needle-set variable air cushion at each end soaks up high-speed end-of-stroke shock for smooth, quiet operation across the 30-800 mm/s range.
Because this MFCD40X80S variant includes the -S magnet, it is ready for CMSG, DMSG or EMSG position switches. The 1/4" port and M14x1.5 male rod threads handle robust airflow and mounting, while the twin rods let you mount a second tool or stopper on the back side. For sizing, a safe working load is roughly 317 N (about 60% of the 0.5 MPa force), or a vertical lift of about 26.9 kg with a 2:1 margin.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X80S Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X80S |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MFCD40X80S
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MFCD40X80S Is Used
Twin-Tool Stamping
Drives a primary stamping tool on the front rod and a secondary pick-off on the back rod, using the 527.8 N force to cycle parts quickly without rotational twist.
High-Speed Diverting
Pushes heavy cartons at speed across a belt; the variable air cushions absorb the end-of-stroke impact to prevent product damage and mechanical wear.
Vertical Lift Stopper
Acts as an anti-rotation stop gate for 26.9 kg vertical loads, using the second rod to mount a CMSG sensor bracket for precise positioning feedback.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X80S the Right Cylinder?
Choose this 40 mm bore when the 345.6 N @0.5 MPa output of an MFCD32 is insufficient for your dynamic load. The MFCD40X80S provides 527.8 N both ways, making it ideal for heavier high-speed anti-rotation tasks. The adjustable air cushions are critical for preventing end-stroke banging at high speeds, but remember they only decelerate the piston—they do not lock the load. If air pressure drops, the cylinder will drift; for strict position holding, install an external rod lock or pilot check valve.
Mounting options include LB foot, FA flange, and TC trunnion brackets (no SDB due to the dual rods). The built-in -S magnet supports CMSG, DMSG, and EMSG sensors for mid-stroke detection. Fluid must be filtered air, with operating pressure between 0.15 and 1.0 MPa.
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 MFCD40X80S FAQ
The double-rod design provides 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. It uses a 1/4" port and M14x1.5 male rod threads.
No, the variable air cushion only decelerates the piston near the stroke end to reduce shock; it is not a brake or lock. The piston will drift on air loss. For load holding, use an external rod lock or pilot check valve. The -S magnet supports CMSG/DMSG/EMSG sensors.
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