Slewing Controller is a kind of Tower Crane slewing control device, combined speed and voltage regulation and eddy current speed controling. The slewing control block control the speed of eddy current torque motor, to make the tower crane slewing mechanism start, working and stop smoothly. This kind of Slewing Controller is used to regulate and control the speed of three-phase torque motor of AC 50Hz, voltage 380V.
HRCV slewing controller is a hoisting slewing controller developed by our company according to service condition of customer.
Slewing Controller,Slewing Control Block,Eddy Current Torque Motor,Slewing Controller for Tower Crane,Slewing Block SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sczenghui.com
According to statistics from the China Automobile Association, from January to November 2011, the production and sales of commercial vehicles were 3,605,600 and 3,712,200 vehicles, down 8.68% and 5.93% year-on-year. With the continuous efforts of major car manufacturers and distributors, sales in December 2011 have increased, but it is impossible to rescue the 11-year commercial vehicle market from the decline. After experiencing rapid growth in 2009 and 2010, it is a foregone conclusion that China’s commercial vehicle market has been braked in 2011. How should we view this turbulent year? 
I. The end of 4 trillion projects and the impact of various disasters
Under the background of the international financial crisis in 2009, the state launched a 4 trillion yuan large-scale economic stimulus plan, a large number of investment and construction activities led to frequent flow of personnel and logistics, and the explosive growth of commercial vehicle sales, with 2011 Since the arrival of the “4 trillion yuan project†in succession, the demand for transportation has dropped drastically, and commercial vehicle sales have naturally been affected. At the same time, due to the continuous drought in a large area this year, the output of agricultural products such as grain, fruits, and vegetables has not only been reduced, but also Ten provincial power grids were experiencing tight supply of electricity, some of the metal mining industry stopped production, and demand for cars was also curbed.
The downturn of the commercial vehicle market in 2011 has already become a foregone conclusion. For commercial vehicle companies, what will change in the commercial vehicle market in 2012 is their concern.
Second, bank credit consolidation, strict application of various policies and regulations
Car loans were rectified in 2011. Banks and insurance companies suspended personal car consumer loans for commercial vehicles and ensured insurance business, which also seriously affected the commercial vehicle market. A large portion of customers of commercial vehicles come from the secondary and tertiary markets. There are a large number of people in the low- and middle-income group. It is difficult for this group of people to take tens of thousands or even hundreds of thousands to buy a car. The suspension of personal vehicle consumer loans and guarantee insurance business for commercial vehicles has forced customers who originally wanted to rely on credit to buy a car to not shelve the purchase plan. At the same time, the restriction policies of major cities have also caused a certain impact on the sales volume of commercial vehicles.
Third, the "car to the countryside" policy ended, the implementation of automotive fuel consumption logo
When the car-to-country policy is implemented, on average, each vehicle can receive a subsidy of 4,000 to 5,000 yuan. In some provinces, some models can even reach 10,000 yuan. Under the drive of subsidy, everyone implements a car purchase plan. The "stage" of the car to the countryside has overdrawn too much of its 2011 share.
Since the beginning of this year, the “car to the countryside†policy has ended, and the cost of car purchases has increased, causing some rural users to shelve the purchase plan for cars, and most of the enterprise users take a wait-and-see attitude. In addition, since last year, all trucks have been marked with fuel consumption. At that time, a large part of the vehicles did not have such an identity. The application for reissuance of “logos†for returning to the factory was more than 20 days faster and slower for three or four months, and the fee for applying for fuel consumption labels was subject to payment. Some models have small sales, and manufacturers are reluctant to apply for fuel consumption models less than before, and they will lose a part of the market.
to sum up:
In 2011, commercial vehicle companies could be said to be under tremendous pressure. Although the demand for commercial vehicles has always existed, the rigid development of the auto industry is an inevitable trend. However, the long-term high price of oil has not been reduced, and the government has implemented a monetary tightening policy and the overall economic growth rate has decreased. Become the two big negative at the macro level, temporarily suppress the rigid demand of the market is still stubborn.
The main technical feature as follows:
(1) This product combined the controller and thyristor module,the connection of the users is simple and easy.Prevent the damage of the controller and thyristor module caused by mis-wiring of the customer.
(2) Realize the best optimization of AC voltage control curve and DC voltage control curve.
(3) With the function of inching during operation, realize the accuracy.
(4) The electronic components adopt the imported industrial grade chip, on the control panel directly with power supply and direction indicator light.
(5) Adopt the coating treatment on the printed circuit board,enhance the dust prevention and anti-condensation capacity of the circuit board.
Recalling 2011 Outlook 2012 Market Tracing Report 2011 Market Depression