In the landscape of modern industrial production and agricultural operations, the hydraulic system serves as the "power core" of equipment, and its performance directly determines the operational efficiency and stability of the entire machine. Twin gear pumps, with their unique advantage of "one pump, two circuits," can simultaneously provide independent hydraulic power to multiple executive mechanisms of equipment, making them an ideal choice for fields such as construction machinery, agricultural machinery, and industrial equipment. With decades of dedication to hydraulic technology, Changjiang Hydraulic has developed the CBY30502010-2FL twin gear pump. Boasting three core strengths—"high-efficiency dual-circuit output, all-domain stable adaptation, and robust quality durability"—this pump breaks the limitations of traditional single-pump power transmission. It has demonstrated strong power support capabilities in various types of equipment, including excavators, loaders, combine harvesters, and industrial machine tools, emerging as a "power pioneer" for the efficient operation of cross-domain equipment.

Equipment such as construction machinery and agricultural machinery often requires the collaborative operation of multiple executive mechanisms. For instance, excavators need to perform digging and slewing actions, while combine harvesters are tasked with reaping and conveying. Traditional single-pump systems rely on complex oil circuit configurations to distribute flow, which easily leads to power loss and action delays. The Changjiang Hydraulic CBY30502010-2FL twin gear pump adopts a "dual-pump core coaxial drive" design. Two independent pump cores share the same drive shaft, enabling the simultaneous output of two stable hydraulic oil circuits. These circuits respectively supply energy to different executive mechanisms of the equipment, achieving "parallel actions without power interference."

The output flow of the two circuits of this twin gear pump can be flexibly matched according to equipment requirements. The main pump displacement is adapted to high-load actions (such as excavator bucket digging and loader lifting), while the auxiliary pump displacement is suitable for low-load actions (such as excavator slewing and loader steering). This avoids the energy waste associated with the "big horse pulling a small cart" phenomenon. Tests have shown that the volumetric efficiency of both output circuits of the CBY30502010-2FL twin gear pump remains stable at over 92%, with an overall efficiency exceeding 88%. Compared with the traditional power solution of "single pump + flow divider valve," energy loss is reduced by 15%-18%. Taking a 12-ton loader as an example, after being equipped with this twin gear pump, the lifting and steering actions can be carried out simultaneously. The operation cycle time is shortened from the original 18 seconds to 14 seconds, and the number of loading and unloading trips per hour is increased by 20%. At a construction site, three loaders equipped with this pump can complete 50 more material transportation trips per day, effectively accelerating the construction progress.

Meanwhile, the dual-circuit independent output design significantly improves the accuracy of equipment actions. Taking the combine harvester as an example, the lifting of the cutting platform and the operation of the conveyor chain require independent power control. The main pump of the CBY30502010-2FL twin gear pump provides high-pressure power (with a maximum working pressure of 25MPa) for the lifting of the cutting platform, ensuring stable adjustment of the cutting platform at different crop heights. The auxiliary pump supplies a stable flow to the conveyor chain, ensuring that the crop conveying speed matches the harvesting speed and preventing crop blockages. After five combine harvesters of an agricultural cooperative were equipped with this pump, the missed cutting rate when harvesting wheat was reduced by 3%, the operation efficiency was increased by 12%, and the harvesting time per mu (a Chinese unit of area, approximately 0.067 hectares) was shortened by 8 minutes. This effectively ensures the timely harvesting of crops during the busy farming season.

Equipment in different fields has significant differences in operating environments and power requirements, which puts forward diverse demands on the structural size, installation method, and performance parameters of gear pumps. The Changjiang Hydraulic CBY30502010-2FL twin gear pump, with its compact structure and flexible adaptation design, can be easily integrated into the hydraulic systems of construction machinery, agricultural machinery, and industrial equipment, solving the pain points of traditional gear pumps such as "poor adaptability and cumbersome installation."

In the field of construction machinery, this pump adopts a modular installation interface, which can directly replace the traditional twin gear pumps on equipment such as excavators and loaders without the need for major modifications to the hydraulic system pipelines. Its compact design (with a length 10% shorter than similar products) adapts to the limited installation space of equipment, making it particularly suitable for small excavators, loaders, and other equipment with space constraints. After a construction machinery manufacturer applied this pump to an 8-ton small excavator, the installation efficiency of the hydraulic system was increased by 30%, and the overall weight of the equipment was reduced by 50kg, further optimizing the mobility of the equipment.

In the field of agricultural machinery, in response to the characteristics of high dust and strong vibration in field operations, the CBY30502010-2FL twin gear pump is equipped with a reinforced dust cover and anti-vibration bracket. The dust cover can effectively prevent crop straws and soil from entering the pump body, while the anti-vibration bracket can absorb the high-frequency vibration generated during equipment operation (reducing vibration acceleration by 40%), avoiding loosening of internal components of the pump body. After a farm machinery enterprise equipped this pump on a corn harvester, the failure rate of the hydraulic system during field operations decreased from the original 8% to 1.5%, and the reliability of continuous operation was significantly improved.

In the field of industrial equipment, the low-noise and low-temperature-rise characteristics of this pump are fully utilized. Actions such as hydraulic clamping of industrial machine tools and the movement of worktables are sensitive to noise and temperature. The CBY30502010-2FL twin gear pump adopts a silent meshing design, with an operating noise of only 62dB, which is 10dB lower than similar products, creating a quiet working environment for the workshop. At the same time, the optimized oil circuit design reduces the flow resistance of hydraulic oil. After the equipment operates continuously for 4 hours, the temperature of the hydraulic oil only rises by 12℃, avoiding the decrease in hydraulic oil viscosity caused by high temperatures and ensuring the machining accuracy of the machine tool. After an auto parts factory applied this pump to the hydraulic system of a CNC lathe, the dimensional error of the parts processed by the machine tool was reduced to 0.005mm, and the product qualification rate was increased by 2%.

Whether it is the mine dust and construction dust faced by construction machinery, the field mud and crop straw encountered by agricultural machinery, or the high-temperature workshops and continuous operation environments where industrial equipment is located, all pose severe challenges to the durability of gear pumps. Through the selection of high-strength materials and full-process quality control, the Changjiang Hydraulic CBY30502010-2FL twin gear pump has built strong "damage resistance" capabilities, ensuring long-term stable operation under harsh working conditions.

In terms of materials, the pump body of this product is made of QT550-6 high-strength ductile iron. After double quenching and tempering treatment, its hardness reaches HB230-260, and its compressive strength exceeds 550MPa, enabling it to withstand the impact load generated during equipment operation. The gears of the dual pump cores are all made of 20CrNiMo alloy steel. After carburizing and quenching treatment, the surface hardness reaches HRC60-63, and the wear resistance is increased by 50% compared with ordinary steel, ensuring that the gear meshing accuracy does not decrease after long-term operation. The seals are made of imported hydrogenated nitrile rubber, which has excellent oil resistance and temperature resistance (capable of working stably in an environment of -40℃ to 130℃). The service life of the seals is three times longer than that of ordinary seals, fundamentally solving the problem of hydraulic oil leakage.

In the quality inspection process, Changjiang Hydraulic conducts "extreme tests" on each CBY30502010-2FL twin gear pump: continuous operation for 100 hours under an overpressure condition of 28MPa without deformation of core components; 100% start-up success rate after being stored in an extremely cold environment of -40℃ for 72 hours; continuous operation for 5000 hours in a simulated mine environment with a dust concentration of 1.5mg/m³, with a hydraulic system performance attenuation rate of less than 5%. After three loaders of a mining enterprise were equipped with this pump, they operated continuously for 12 months without failure during ore loading and unloading operations. Compared with the ordinary twin gear pumps used previously, the maintenance cycle was extended by four times, and the annual maintenance cost was reduced by more than 20,000 yuan. After an industrial enterprise applied this pump to the hydraulic system of a production line, it operated continuously for 36 months without replacement, and the equipment attendance rate was maintained at over 98%.

From the efficient construction of construction machinery to the rush harvesting and sowing of agricultural machinery, and then to the precision processing of industrial equipment, the Changjiang Hydraulic CBY30502010-2FL twin gear pump, with its outstanding performance of high-efficiency dual-circuit output, all-domain stable adaptation, and robust quality durability, provides a reliable hydraulic power solution for multi-field equipment. In the future, as equipment upgrades towards intelligence and large-scale development, Changjiang Hydraulic will continue to optimize the electronic control adjustment function and energy efficiency of this series of twin gear pumps, further expand its application boundaries, and help more industries achieve "efficient production, cost reduction, and efficiency improvement," injecting strong impetus into the high-quality development of industry and agriculture.