60212019 Sany Crane Parts Original Electro Hydraulic Reversing Valve LH3G1 Electromagnetic

Product Description

Sany crane original electro-hydraulic reversing valve LH3G1 electromagnetic hydraulic reversing valve

60212019 Suitable for Sany mobile cranes STC250T-STC800T use

Function:

Crane electromagnetic hydraulic reversing valve has a variety of important role, the following is a specific introduction:

1. **Control the hydraulic oil flow direction **
- **Changing the direction of the actuator action**: In the hydraulic system of the crane, the electromagnetic hydraulic reversing valve controls the movement of the spool through the energization and de-energization of the solenoid, thus changing the direction of flow of the hydraulic oil. For example, when the boom needs to rise, the reversing valve switches the oil circuit, so that the hydraulic oil flows into the rodless cavity of the boom telescopic cylinder, pushing the boom to rise; when the boom needs to fall, the reversing valve switches the oil circuit again, so that the hydraulic oil enters the rod cavity, and the boom descends under the joint action of gravity and hydraulic oil. In this way, according to different operational requirements, the crane can accurately control the direction of the action of each actuator, such as boom expansion and contraction, luffing, slewing and so on.
- **Realize compound action**: It can control the action of multiple actuators simultaneously or separately to realize complex compound action. For example, in the process of lifting goods, both the lifting and lowering of the boom, but also the need for crane slewing and luffing action, electromagnetic hydraulic directional valve can coordinate these actions, so that all parts of the crane in accordance with the predetermined procedures and sequences of movement, to improve operational efficiency and accuracy.

2. **Regulating hydraulic oil flow**
- **Control the speed of the actuator**: In addition to controlling the flow direction of the oil, the flow rate of the hydraulic oil can also be adjusted by changing the size of the opening of the valve port, thus controlling the movement speed of the crane actuator. For example, in the case of lifting fragile goods or having strict requirements on lifting speed, the flow rate of hydraulic oil can be reduced by decreasing the opening of the valve port of the reversing valve, so that the lifting and turning of the crane arm can be more stable and slow, and damage to goods or safety accidents can be avoided due to excessive speed.
- **Satisfy the demand of different working conditions**: In different working conditions, the speed requirement of the crane is also different. The electromagnetic hydraulic reversing valve can flexibly adjust the flow of hydraulic oil according to the actual demand, so that the crane can maintain good working performance under different working conditions, such as high-speed unloading and low-speed precise positioning.

3. **Guaranteeing safe and stable operation of the system**
- **Prevent hydraulic shock**: In the hydraulic system of the crane, due to the change of load, sudden stop of the actuator, etc., hydraulic shock may be generated. Electromagnetic hydraulic reversing valve can reduce the sudden change of the flow of hydraulic oil by switching the oil circuit quickly and accurately, thus effectively preventing the generation of hydraulic shock, protecting the components of the hydraulic system from damage and prolonging the service life of the system.
- **Realize overload protection**: When the load of the crane exceeds the rated value, the pressure of the system will rise. Electromagnetic hydraulic reversing valve can be used in conjunction with pressure relay and other devices, when the system pressure reaches the set value, it will automatically switch the oil circuit or limit the flow rate, preventing the system from overloading and guaranteeing the safe operation of the crane.
- **Remote control and automated operation**: Electromagnetic hydraulic reversing valve can be remotely controlled by electrical signals, and the operator can input control signals through control buttons, joysticks, etc. in the driver's cab or in a place far away from the crane to realize remote control of the crane. This not only improves the convenience and safety of operation, but also can be linked with other equipment or systems to realize the automated operation of the crane and improve work efficiency and production benefits.

1,Company Profile
Changsha Origo Technology Co., Ltd was founded in 2024, is located in Changsha, Hunan Province, the capital of China's construction machinery, located in the future wisdom city of Changsha County, Changsha City, Hunan Province, East Sixth Road, the founder of the company has been engaged in the construction machinery industry for more than 20 years, has established a good reputation in the industry, and has become a trusted partner of many customers.

2,Business Scope
The company specializes in the export trade of used construction machinery, the business covers a variety of equipment, including automobile cranes, crawler cranes, cross-country cranes, concrete pump trucks, aerial work trucks, excavators, loaders, bulldozers, road rollers, telescopic boom trucks, airplanes, ships, sanitation trucks, and other equipment repair, spare parts, remanufacturing and technical support. These equipments come from a wide range of sources and are strictly screened and tested to ensure good performance and reliable quality, which can meet the needs of different customers. Our products are highly favored in foreign markets and are exported to more than 30 countries in Southeast Asia, Africa, the Middle East, South America as well as Russia and Europe, with an annual turnover of more than 50 million yuan.

3,Professional Team
The company has a high-quality, experienced professional team. The team members have profound industry knowledge and professional skills, and can provide all-round, one-stop professional services from equipment procurement, testing, evaluation, to sales, transportation and after-sales service. We know that talent is the core strength of enterprise development, so we continue to attract and cultivate outstanding professionals, and are committed to building the most competitive team in the industry.

4,Quality Assurance
In order to ensure the quality of export equipment, the company has established a perfect quality inspection system. Each piece of equipment needs to be strictly tested and evaluated by professional technicians before entering the sales process, including mechanical performance, appearance condition, wear and tear of parts and other aspects. Only equipment that meets the company's quality standards will be put on the market. At the same time, we also provide customers with free maintenance and technical support services during the quality assurance period, so that customers have no worries.

5,Customer service
Customer first is our consistent service purpose. We have a professional customer service team, can provide customers with timely, efficient and thoughtful service. Whether in equipment selection, technical advice, or in transportation, customs clearance and other links, we can provide customers with a full range of solutions and support. In addition, we also regularly return to customers, field visits, to understand the use of equipment and customer feedback, in order to continuously improve the quality of our services.

6,Corporate culture
The company adheres to the corporate culture concept of “integrity, innovation, win-win”, with the service slogan of “China Select, quality as new, used machinery, value is not reduced”, integrity-based, and constantly innovate the business model and service mode, to establish long-term and stable cooperation with domestic and foreign customers to achieve mutual benefit and win-win situation.

7,Future Prospect
Looking to the future, Changsha Origo Technology Co., Ltd. will continue to adhere to the market demand-oriented, and constantly improve its core competitiveness, expand the international market, and strengthen cooperation and communication with domestic and foreign counterparts. We will be committed to providing customers with better quality products and services, to create a global leader in exporting the first brand of used machinery services, and to make greater contributions to promoting the development of the industry.

Welcome friends from all walks of life to visit our company and discuss cooperation!