Hegang Steel Development Co., Ltd. Successfully Developed the World's First SD7K High-Driving Electric Control Hydrostatic Bulldozer

On March 4, the SD7K high-drive electro-hydraulic drive bulldozer developed by Hegang Pro-Construction Co., Ltd. was officially put into the trial-drilling stage after comprehensive debugging of the electronic control hydraulic system. The bulldozer is the world's first set of 220 horsepower high drive electronically controlled hydrostatic drive bulldozers.

At present, electronic technology and hydrostatic technology are applied in the field of construction machinery. Hydrostatic transmission has become the future direction of bulldozer development. Compared with the current mainstream hydraulic and mechanical drive bulldozers, it has the characteristics of rapid action, fast commutation, high torque, large speed range, and stable operation. It can achieve stepless speed regulation, in-situ steering, constant pressure, constant rotation. Moment operation and automatic overload protection, more reasonable and effective matching with the electronic control engine, long service life, and will be significantly improved in energy saving, noise reduction.

SD7K high drive electric control hydrostatic drive bulldozer is compared with the traditional transmission form, no longer use torque converter, gearbox, main clutch and other structures, using hydraulic pump to drive the hydraulic motor to directly drive the drive wheel to achieve power output. The engine adopts phase III electronically controlled engine to achieve the matching with the hydraulic walking system and can be used to select various working modes. Frame - The rear axle box adopts welded structure, which has large space available, easier component arrangement, improved parts maintenance, and increased radiator frontage.

In order to speed up the pace of product technology upgrades and meet and meet customer needs, Hegang Xuangong started the project for SD7K bulldozers in July 2015. The design was completed in September. Within six months, the design, processing, and manufacturing were completed. Assemble the task, in early February assembly of the next two. The completion of the development of electronically controlled hydrostatic bulldozers can realize the intelligent development of bulldozers and provide customers with more extensive application requirements. (This article comes from propaganda)