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The 9WF0624H4D04 is a Sanyo Denki SanAce 60WF series tubeaxial fan. Sanyo Denki is one of the major OEM suppliers of cooling fans to FANUC for use inside CNC control units, servo amplifier modules, and drive cabinets — the 9WF0624H4D04 is a Sanyo Denki component that appears under FANUC part references in machine service documentation.
The 25mm body depth distinguishes this fan from the thinner 20mm SanAce format. The extra depth provides more blade pitch area at the same 60mm diameter, increasing airflow volume for cooling positions with higher heat load. At 3.6W (24V × 0.15A), it delivers this airflow at modest power draw.
The 3-wire configuration carries a tachometer signal in addition to the supply conductors. The tachometer output is a pulsed signal proportional to fan speed — the host CNC or drive electronics reads this to monitor fan rotation in real time. If speed drops below the programmed threshold, the system raises a fan alarm before thermal overload develops. A 2-wire fan fitted in a 3-wire position removes speed monitoring entirely and may cause immediate detection faults.
| Parameter | Value |
|---|---|
| Model | 9WF0624H4D04 |
| Manufacturer | Sanyo Denki (Japan) |
| Series | SanAce 60WF |
| Voltage | 24V DC |
| Current | 0.15A |
| Power | 3.6W |
| Dimensions | 60 × 60 × 25 mm |
| Wiring | 3-wire (supply + tachometer) |
| Type | Tubeaxial |
| Status | Discontinued |
The 9WF0624H4D04 has been discontinued by Sanyo Denki. Replacement stock comes from the CNC fan aftermarket. Confirm the connector type and pin assignment match the host unit's fan header before ordering. Fan bearings wear with operating hours — replace at the first sign of bearing noise rather than waiting for complete failure.
Q1: Is the 9WF0624H4D04 a FANUC product or a Sanyo Denki product?
It is manufactured by Sanyo Denki — a Japanese fan and servo motor manufacturer — under their SanAce 60WF product series. Sanyo Denki supplies cooling fans to FANUC as an OEM component, which is why this model number appears in FANUC machine service documentation and is commonly listed alongside FANUC spare parts. The manufacturer on the fan label is Sanyo Denki.
Q2: What is the difference between a 2-wire and 3-wire version of this fan?
2-wire carries only positive and negative supply. 3-wire adds a tachometer output — a pulsed signal the host electronics uses to monitor actual fan speed. On positions requiring a tachometer signal, a 2-wire replacement disables speed monitoring and may immediately trigger a fault. Confirm the wire count of the installed fan from its connector before ordering a replacement.
Q3: Can a standard 60×25mm 24V DC fan replace the 9WF0624H4D04?
Only if it provides a 3-wire tachometer output, matches the airflow direction, uses a compatible connector, and delivers adequate CFM for the cooling position. A fan lacking the tachometer output cannot substitute in a 3-wire position without losing speed monitoring.
Q4: The CNC shows a fan alarm but the fan appears to be spinning. What could cause this?
A fan running significantly below rated speed — from worn bearings or low supply voltage — generates a tachometer signal at reduced frequency. The control system interprets the reduced pulse rate as an underspeed condition and raises the alarm even if the fan appears to rotate. Measure the supply voltage at the fan connector and compare the tachometer pulse frequency against the specification.
Q5: Where is the 9WF0624H4D04 sourced after discontinuation?
Through the industrial CNC fan aftermarket — Sanyo Denki fan distributors, CNC service suppliers, and surplus dealers. Confirm 9WF0624H4D04 specifically (60×25mm, 3-wire, 24V) from the fan's own label before ordering. Fans with similar dimensions but different wire counts or voltages are not compatible substitutes.
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