What are the power limitations of naturally cooled F-series reducers

1、 Core power limit boundary

General industry consensus: Natural cooling is only suitable for light load intermittent working conditions of ≤ 5kW. If the power exceeds this limit, forced air cooling or water cooling devices must be installed.

Range of machine base size adaptation: F37 and F47 machine base sizes (rated input power of 0.18~3kW) can fully meet the requirements of natural cooling; F57 and F67 machine base sizes (rated input power of 0.18-5.5kW) can only use natural cooling when the power is ≤ 5kW, and additional heat dissipation is required for excess parts.

Condition constraint: When the ambient temperature exceeds 35 ℃ and the system operates continuously at full load for 24 hours, the upper limit of power allowed for natural cooling needs to be further reduced to 3-4 kW to avoid the oil pool temperature exceeding the 75 ℃ limit specified in JB/T 8853-2023.

2、 Supporting installation requirements

The heat dissipation ribs of the shell should be installed in the direction of natural airflow, with a reserved unobstructed heat dissipation space of ≥ 200mm around. It is forbidden to stick to the wall or pile up debris.

Vertical installation results in the best heat dissipation efficiency, while horizontal placement leads to a loss of about 20% in heat dissipation area, requiring a corresponding reduction of about 15% in operating power.