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Ningbo Dongyu Hydraulics Co., LTD (hereinafter referred to as Dongyu Hydraulics) was established in 2016, as professional China DGM Hydraulic Piston Motor Manufacturers and Custom DGM Hydraulic Piston Motor Suppliers, Dongyu Hydraulics is a high-tech enterprise integrating R&D, design, manufacturing and sales of hydraulic piston motor, hydraulic gearbox and hydraulic winch, etc., headquartered in Ningbo, China.
Main products of Dongyu hydraulics:
Inner curve radial piston motor, planetary gearbox, hydraulic winch: "DYH" series planetary gearbox, "DMS" series inner curve radial piston motor, "GFT" series travel gears, "GFB" series swing gears, "DYNJ" series hydraulic winch and other non-standard customized products.
Dongyu Hydraulics has a professional technical and design team to provide you with customized products and services.
Dongyu Hydraulics products are widely used in construction machinery, metallurgical industry, mining machinery, cranes, shipping, ports, petroleum, agriculture, tunnel engineering and other fields.
Dongyu Hydraulics, focusing on technological innovation and talent introduction, has more than ten practical invention patents; and has an independent registered trademark.
Dongyu Hydraulics has a modern production plant and modern manufacturing equipment, inspection and testing equipment, such as Mazak horizontal machining center, Okuma double turret type turning compound machine, Okuma double spindle double turret type five-axis seven-link turning compound machine, Chien Wei inner curve grinder, etc.
Dongyu Hydraulics has established a complete quality management system and strictly abides by the ISO9001 quality system certification. Dongyu Hydraulic products have been all over the country and exported to Europe, North America and other countries.
Product Characteristies
The main features are as follows:
- Since there is no lateral force between the piston and the swivelling cylinder, the bottom of the piston is designed with a static pressure balance, and the torque is transmitted between the piston and the crankshaft through the rolling bearing, which reduces the friction loss in the process of force transmission. Therefore, DGM series hydraulic motors have the characteristics of high mechanical efficiency and high starting torque.
- The plane flow distributor is simple and reliable, with good sealing performance and less leakage. The piston and swivelling cylinder are sealed with plastic piston rings without leakage, hence it has a high volumetric efficiency.
- The composite bushing used between the pendulum trunnion and the shaft bore of the back cover and the shell. The structure reduces friction losses and improves sealing performance and stain resistance. Hence, improvded the low-speed stability, mechanical efficiency and working reliability.
- Because the piston and the bearing sleeve are firmly attached to the ring without gap, this series hydraulic motors can be operated under pump conditions, when the oil inlet is closed, the motor can run under free wheel conditions (oil pressure is required for pump conditions, which can improve work reliability).
- This series hydraulic motors have high pressure, and the maximum pressure can reach 35MPa. Light weight, small size, high power.
- Due to the simple structure, reasonable design, use large load capacity bearings, thus it works reliably, has long life and low noise, and the transmission shaft is allowed to bear radial load, and the direction of rotation is reversible.
Because DGM series hydraulic motors have the above series of characteristics, they are widely used in plastic machinery, light industrial machinery, metallurgical machinery, mining machinery, lifting and transportation equipment, heavy machinery, petroleum and coal mining machinery, ship deck machinery, machine tools, geological drilling equipment and other mechanical hydraulic transmission series. It is especially suitable for lifting winches, drum drives, various rotary mechanical drives, crawler and wheel travel structure drives and other transmission machinery.
