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Analysis of common failures of hydraulic synchronous motors
The main factor that affects the synchronization error of the synchronous motor The synchronous motor is composed of several motors with high machining accuracy and the same size. The same size and higher machining accuracy make the flow (displacement) through each motor approximately the same. F...
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Classification of hydraulic valves
A component used to control the pressure, flow and direction of the liquid in a hydraulic transmission. Among them, the pressure control valve is called the pressure control valve, the flow control valve is called the flow control valve, and the flow control valve is called the directional contro...
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The difference between open hydraulic system and closed hydraulic system
Open system (1) Open hydraulic system means that the hydraulic oil pump sucks oil from the oil tank, and supplies oil to the hydraulic cylinder (or hydraulic motor) through the reversing valve to drive the working mechanism. The oil return of the hydraulic cylinder (or hydraulic motor) is then r...
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Overview and characteristics of flow control valves
Overview The flow control valve is a valve that relies on changing the fluid resistance of the orifice to control the flow of the orifice under a certain pressure difference, thereby adjusting the movement speed of the actuator (hydraulic cylinder or hydraulic motor). It mainly includes throttle ...
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Introduction of GRH 0 group hydraulic gear pump
The displacement range of GRH’s 0 group gear pump is (0.16-2) ml/r, and there are two options for pressure, F(200bar)/G(250bar). The inlet and outlet threads are connected with G thread, metric thread, American thread (NPT), etc., flange and shaft extension size, there are two kinds of rota...
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GRH Guorui Hydraulics, the leader in aerial work platforms
Aerial work platform (AWP) is a type of special equipment designed and produced to meet the needs of high-altitude operations. It can lift operators, tools, materials, etc. through the work platform to a designated location for various installations , Maintenance operation, and provide safety gua...
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Review of Bauma in 2020
In the time of global fight against COVID-19, Guorui hydraulic(GRH) carried out a system solution of hydraulic components and hydraulic technology,and participated in Bauma 2020, which was held in Shanghai International Exhibition Center in November 2020. It showed the strength of GRH’s des...
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Causes and solutions for malfunction or insufficient pressure of hydraulic system
Causes and solutions for malfunction or insufficient pressure of hydraulic system Reason 1: The motor wire is connected reversely. Solution: Change the motor wire Reason 2: The motor power is insufficient and the speed is not high enough. Solution: Check the voltage and current Faul...
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GRH- smoothly attend 2018 Shanghai Bauma
GRH HYDRAULIC are very honored to attend the 2018 International Event Bauma exhibition. Independent research and development for power unit and hydraulic cycloid motor, high speed motor, low noise screw pump, tandem pump, and normal products displaying by hydraulic system, attracts many visitors....
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Shanghai PTC – Guorui Hydraulic full of harvest
Wuhan Agricultural Machinery Exhibition just come to an end,then GRH team appared on another famous international exhibition-the 23st Asia International Power Transmission and ControlTechnology Exhibition lasting four days from Nov.6. On the stage ofthe New International Expo Center, Guoruihydrau...
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GuoRui Hydraulic—Wuhan Agricultural Machinery Exhibition
During 2018.10.26-28, GuoRui Hydraulic attended China international agricultural machinery exhibition holding in HubeiWuhan. In this exhibition,GuoRui Hydraulic replying on “HydraulicGear Pump” won 2018 China Agricultural Industry Annual PartsHigh Quality Award. They exhibited hydraulic horsepowe...
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GRH SHINING BRIGHTLY IN IFPE 2017
GRH attended the international construction & machinery exhibition in Las Vegas of USA, which held 5 days, andbecome one of the most brightly scenery in China pavilion. Our booth shows: Gear pumps, Motors, Hydraulicdirectional control valves, etc., especially our independent researching and d...
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