Rated Torque Capacity: The rated torque capacity of this swing gearbox is usually in the range of 20,000 - 40,000 Newton-meters (N·m). This torque rating is adequate to rotate the relatively heavy upper structure of the 349D2 and 352F excavators, even when the working equipment is under a significant load. It enables smooth and stable swing operation in various working conditions.
Maximum Torque Capacity: The maximum torque capacity that the gearbox can withstand for short periods is higher than the rated torque, often reaching up to 50,000 N·m or more. This additional torque capacity allows the gearbox to handle sudden peak loads, such as when the excavator encounters unexpected resistance during swinging, ensuring the reliability and durability of the swing system.
Rotational Speed Range
Input Rotational Speed: The input rotational speed from the swing motor (not included) is typically in the range of 1000 - 2000 revolutions per minute (rpm). The gearbox is designed to accept this input speed and convert it into the appropriate output speed for the swing mechanism of the excavator.
Output Rotational Speed: The output rotational speed of the gearbox, which drives the swing of the upper structure, is generally in the range of 20 - 100 rpm. This speed range provides the necessary control and maneuverability for the excavator's swing operation, allowing for both quick repositioning and precise adjustments.
