Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X125
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X125 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 125mm 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
- Stroke125 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 MFCD40X125
Twin rods exit both covers on the AirTAC MFCD40X125, yielding identical 527.8 N force at 0.5 MPa in both directions while steadying the load against rotation. This JIS-standard round-body mini cylinder uses a SUS304 stainless barrel with riveted aluminium covers, offering a shorter overall mounting length than a comparable ISO 6432 unit. Needle-set variable air cushions at each end absorb end-of-stroke shock for high-speed 30-800 mm/s cycles.
This non-magnet SKU cannot accept position sensors; order the -S variant to enable CMSG, DMSG or EMSG switches. The 40 mm bore features a 1/4" port and M14x1.5 male rod threads. Based on the 0.5 MPa rating, expect a safe working load of roughly 317 N, or about 26.9 kg of vertical lift with a 2:1 margin. Note that the cushions only decelerate the piston and do not lock the load on air loss.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X125 Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X125 |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 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 MFCD40X125
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | 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 MFCD40X125 Is Used
Twin-Tool Stamping
Drives a 125 mm stamping stroke with equal 527.8 N force in both directions, using the second rod to mount a synchronized secondary forming tool.
High-Speed Diverting
Rapidly diverts heavy packages along a line at up to 800 mm/s, relying on the needle air cushions to quietly absorb the end-of-stroke impact.
Vertical Lift Stopper
Lifts or halts loads up to roughly 26.9 kg vertically with a 2:1 safety margin, using the twin rods to prevent side-play and rack twist.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD40X125 the Right Cylinder?
When sizing the 40 mm bore against the MFCD32 at 345.6 N, the MFCD40X125 delivers a stronger 527.8 N at 0.5 MPa, making it the better choice for heavier twin-tool or anti-rotation tasks. The adjustable air cushions shine in high-speed operations where halting shock would otherwise damage the workpiece. Mount this cylinder using LB foot, FA flange or TC trunnion brackets; there is no SDB option because a rod exits the back cover.
Because this specific SKU lacks a magnet, it cannot support magnetic sensing. If your sequence requires position feedback, select the -S version. Furthermore, the air cushion only decelerates near the stroke end and will not hold a load if air pressure drops. For vertical or suspended loads that must remain fixed during air loss, install an external rod lock or pilot-operated check valve.
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 MFCD40X125 FAQ
The MFCD40X125 is a double-acting, double-rod cylinder that generates equal force in both directions: 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" air port and an M14x1.5 male rod thread.
This specific SKU has no magnet and cannot accept CMSG, DMSG or EMSG sensors; you need the -S variant for sensing. The variable air cushions at both ends only decelerate the piston near stroke end to reduce shock; they do not act as a brake or lock, so an external rod lock is required to hold a load on air loss.
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