According to the working voltage grade, onboard metal boxes are divided into three categories: low-voltage boxes, high and low voltage combination boxes and high-voltage boxes. The boxes can meet the requirements of long-term use in different working conditions. It has been serving reliably in Chongqing, Liaoning, Beijing and other provinces and cities that vary largely in environment. We continued to optimize the structural design of our product to meet the needs in structural strength, and in the meantime reduce their weight and size in order to reduce the trains’ operating cost. It has been serving on Chongqing Rail Transit line 1 & 9 and Beijing Rail Transit BATONG line South Extension.

Support and services

1. Customized structure based on different vehicle models.

2. Withstand voltage can match the major rail transit systems’ voltage range

3. Optimized structure and load-to-weight ratio