13770635 Trinity Crane Parts Winch Counterbalance Valve P22Q021

Product Description

Sany Crane Parts Winch Counterbalance Valve P22Q021

13770635 fits the following models:

Sany/55 tonnes/STC550T5
STC250S-Y18

Function:

The crane winch counterbalance valve is an important safety device, and its main functions include the following:
1. Preventing heavy loads from slipping
The winch counterbalance valve prevents the free fall of heavy loads due to hydraulic system failure, pipe rupture or other unforeseen circumstances when the crane is lifting heavy loads. It balances the self-weight of the heavy load by generating a certain back pressure in the hydraulic circuit to ensure that the heavy load is always kept in the set position during the lifting process.
2. Control of falling speed
The counterbalance valve can control the descending speed of the hook or boom so that it is not affected by the change of load weight. By adjusting the opening of the spool, the counterbalance valve can ensure that the heavy load maintains a smooth and controllable speed during the descent, avoiding safety accidents caused by the heavy load falling too fast.
3. Provide load holding function
When the crane's winch mechanism stops working, the counterbalance valve can lock the hydraulic circuit to prevent the hydraulic oil from flowing back, so as to keep the heavy load stationary in the lifting position. This function is essential for the safety of the crane when it is temporarily parked or waiting to be worked on.
4. Ensuring operational stability
The counterbalance valve regulates the pressure and flow in the hydraulic system to keep the crane stable during operation. It can automatically adjust the flow of hydraulic oil according to the change of load to ensure that the crane can run smoothly during operations such as lifting, lowering and luffing.
5. Prevent hydraulic system overload
The counterbalance valve can also prevent the hydraulic system from overloading due to excessive load. It protects other components in the hydraulic system from damage by limiting the flow and pressure of the hydraulic fluid.

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!