QY/QJY Crane Reducer Detailed Explanation: The Most Commonly Used Hard Gear Reducer on Construction Sites

1、 Firstly, there is the QY series reducer, which belongs to the three-stage hard tooth surface cylindrical gear reducer, and is divided into two installation structures: QYS triple pivot type and QYD base type. The overall structure is simple, easy to install, and has stable bearing capacity. It is suitable for small and medium-sized bridge cranes and gantry cranes, and is mostly used for routine lifting operations in factories. It has a high cost-effectiveness and easy maintenance.

2、 Next is the QJY series reducer, which is an upgraded version of the QY series. It has a larger gear module and stronger load-bearing capacity. After high-precision gear grinding treatment, the transmission noise is lower and the wear resistance is better. Suitable for large tonnage cranes and high-frequency continuous operation conditions, with longer service life and higher stability.

The common advantages of the two products are the use of high-strength alloy gears, which have undergone quenching and tempering treatment, resulting in high hardness and fatigue resistance; The box has strong rigidity and is not easily deformed; Adapting to the intermittent and frequent start stop operation characteristics of lifting equipment, it is a universal and essential product for industrial lifting scenarios.

Applicable scenario differentiation: QY series is selected for conventional small and medium tonnage, low-frequency operations; QJY series is preferred for large tonnage, high-frequency heavy load, and long-term continuous operation.