Guizhou Pingshui Machinery Co., Ltd., a company under the China Aviation Industry First Group and in collaboration with the China Academy of Agricultural Mechanization Sciences, made a significant breakthrough in 2002 by developing the 4MZ-5 cotton picker. This marked the successful implementation of a "production, study, and research" cooperation model. The 4MZ-5 model filled a critical gap in the domestic market, breaking the long-standing monopoly of foreign products in this sector.
The majority of the components, including gearboxes, hydraulic pumps and motors, valves, and cylinders, are locally produced, achieving a localization rate of over 90%. As a result, Guizhou Pingshui Machinery Co., Ltd. has become not only the sole domestic manufacturer but also the third company worldwide capable of producing large-scale self-propelled cotton pickers.
The 4MZ-5 is a large, five-row horizontal picking self-propelled cotton picker featuring a front-mounted picking platform, an automatic reversing cotton box, and a hybrid drive system powered by an engine with 186 kW of power. After comprehensive testing and practical application by the Xinjiang Production and Construction Corps, the machine demonstrated impressive performance metrics: a picking efficiency of 95.03%, an operating speed of 5.77 km/h, fuel consumption of 1.7 kg per hour, and impurity content below 10%.
With an expected annual production capacity of 100 units in 2006, the 4MZ-5 cotton picker was recognized as a key project under the "National Key New Product Plan." Its development represents a major step forward in China's agricultural machinery industry, showcasing both technological advancement and self-reliance.
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