As the railway engineering project fully enters the local bidding system, the public PK of a company inside and outside the railway system will be staged. According to reports, the Office of the Leading Group for Outstanding Issues in the Field of Central Management Engineering Construction and the Ministry of Railways jointly issued the "Guiding Opinions on the Entry of Railway Engineering Projects into the Local Public Resource Trading Market Bidding Work" (hereinafter referred to as "Opinions"), clearly It is required to cancel the original railway engineering trading center of the Ministry of Railways and 18 railway bureaus (companies), and enter all local railway project projects to bid for local public resources trading market according to the principle of territoriality or authorization before the end of June. The industry generally believes that the introduction of the "Opinions" will help the development of bidding for railway engineering projects in a more open, fair and transparent direction. However, the Implementation Measures for Bidding and Tendering of Railway Construction Projects (hereinafter referred to as the “Measuresâ€), which has been implemented since 2002, does not prohibit enterprises outside the railway system from participating in bidding. To what extent can the "Opinions" promote the fairness and transparency of bidding, in addition to the implementation of the local trading market, but also whether the owners are willing to accept diversified bidding entities.
At the end of June,
local bidding will be fully implemented. At the end of June, all railway projects will enter the local public resource trading market in accordance with the principle of territoriality or authorization. A report on the 20th of Xinhuanet attracted a hot discussion in the industry. When the news came out, the reporter immediately called the Guangzhou Railway Group. The relevant staff said that “the internal documents have been received and relevant work is being carried out.†The relevant person in charge of the Guangzhou Construction Engineering Trading Center also clearly stated in an interview that it has been received. To the news of the Guangzhou Railway Construction Management Office, "the other party said that they are responsible for the release of all information, and the details are not disclosed." The news that was not posted on the official website of the Ministry of Railways was finally confirmed. According to Xinhuanet, the "Opinions" require 18 railway bureaus (companies) to manage projects in two batches to enter the local public resources trading market in accordance with the principle of territoriality or authorization. Before the end of May, eight railway bureaus (companies) managed by Beijing, Shanghai, Taiyuan, Jinan, Nanchang, Xi'an, Kunming Railway Bureau and Guangzhou Railway Group Corporation completed the project. Before the end of June, engineering projects managed by 10 railway bureaus (companies) including Harbin, Shenyang, Hohhot, Zhengzhou, Wuhan, Nanning, Chengdu, Lanzhou, Urumqi, and Qinghai-Tibet Railway Company were completed. Industry insiders believe that this is a major change in the management system for railway engineering bidding in China. “Placing bidding in various places is enough to see the openness of the entire bidding system.†An industry insider familiar with the railway bidding system told reporters. However, from the "Measures" implemented in October 2002, the bidding for the railway system is open to all enterprises. Article 6 of the Measures stipulates that railway construction projects that must be tendered shall not be subject to restrictions by regions or departments. “Although the regulations require openness and transparency, the owners can reject many companies by setting a lot of access conditions when bidding.†A device supplier who has been unable to enter the railway system due to non-conformity of the qualifications tells reporter. In response to this problem, the "Opinions" particularly emphasizes that it is necessary to reform the railway project bidding management system and mechanism, ensure the equalization and full competition of the railway construction market entities, and prevent leading cadres from interfering with the railway project bidding, clearing the bidding, and voting for power. And so on. It is understood that as early as last year, the reform of the railway project bidding management system has been launched. The Central Engineering Governance Leading Group attaches great importance to this work and assists in the formulation of work plans and specific measures. The Ministry of Railways has also held several party group meetings to study this work. At the end of 2011, the large and medium-sized construction projects managed by the Ministry of Railways were all invited to the bidding for the Beijing Construction Engineering Contracting and Trading Center.
Tender opening to weaken the "control power" of the railway system " It is unrealistic to expect all kinds of entities to flock in. After all, the main players in many professional fields of railway construction are some big companies, but I believe that the speed of other businesses will continue to open. Speeding up, the change is step by step." An industry insider said that the downward trend of the bidding rights seems to be more practical than the previously issued railway "opening 14 new regulations to the private capital." "It seems that the secondary market for railway bidding has to be gradually opened up." In an interview yesterday, an insider of the Ministry of Railways admitted to the Nanfang Daily reporter that he saw the railway bidding system step by step. "The earliest The Ministry of Railways has placed many large-scale investment projects in the tendering center of Beijing, but there are still a large number of local road bureau investment projects that are still being tendered by the relevant road bureaus in their own bidding centers. This time the policy is thoroughly This commonly known 'secondary market' is also fully marketized." He believes that the actual meaning of this document is much larger than many people think. "You don't see the "Tendering and Bidding Regulations" originally formulated by the Ministry of Railways. However, companies in other regions and other fields must not be excluded, but in fact many operations are to exclude them and protect enterprises that have a relationship with the Ministry of Railways." He exemplified, for example, setting bid conditions, indicating that they must have been undertaken. Large-scale railway projects, etc., naturally squeeze out some "outside enterprises." Now that the whole bidding process has been handed over to the place, it means that the entire railway system will lose the kind of "control" in the past. Now "many rules are determined by others, and the evaluation experts are also different systems. I want to say hello again." People don't necessarily buy it, the maneuvering power of the railway system will definitely drop a lot. And the winning bid information will be disclosed in a more transparent channel, and the supervision will be much stronger." In fact, the city rails that have been invested in many places before Once unwilling to enter the tendering system of the Ministry of Railways, a relevant person involved in the construction of Guangdong urban railroads told reporters that “the earliest batch of construction projects in Guangdong were tendered through local tendering centers, and many of them were very technical in some professional fields. The company with the ability has successfully won the bid.†According to reports, Guangdong Huatuo Construction Co., Ltd. successfully undertook part of the tender section of Guanhui City Rail. “If they follow the bidding system of the Ministry of Railways, they will definitely not be able to enter. Now that the tender has been released, it will only be more economical and convenient for the place."
High Speed Door Motor And Control Box
Our company have German SEW Motor, Japan Mitsubishi Controller. Our own brand Hofic servo motor and controller. Chinese famous brand SEJ motor and Holip controller.
About our German SEW Motor and Japan Mitsubishi Controller: It is easy to find the ideal energy-efficient motor for your application at SEW. The series has a suitable design in its range for the globally applicable efficiency classes. Select the power and frequency within this motor design and you have already taken care of the most important selection criteria.All other motor options are of course available independently of the efficiency class. A comprehensive braking concept and cost-optimised built-in encoders ultimately complement the motor range. Comprehensive braking concept and combinations i.e. up to three different brake sizes per motor size featured in the range: Cost-optimised built-in encoders integrated into the motor. Motors for efficiency classes IE1 to IE4.Compact design saves space and costs. Future-proof, also as regards environmental protection (standards). Reduction in operating costs when using energy-efficient motors; our energy-efficient motors conform to the efficiency classes.
About servo High Speed Door Servo Control System: Our rolling gate servo control system is suitable for high speed and high usage soft and hard rolling gate. The whole system is in a small and light package, it has high torque and high operating speed, lower noise, high reliability, smooth and soft operating curves, it`s suitable for high speed and usage environment. The rolling curtain can be controlled by pull switch, push button, Bluetooth, ground radar, ground magnetic sensors. Operating Speed: 1M/s; Operating Width: ＜16 ㎡; Daily operating time: ＞2000 time; Rated voltage: 220v; Rated Output: 0.75 KW/1.5KW.
The system can operated via: 1) control box; 2) inching electronic control; 3) continuous automatic operation; 4) emergency stop; 5) single side operation box; 6) time delay; 7) ground radar and/or magnetic sensors. Please refer to Wiring Terminal for eternal connections.
System has fuse/safety wire shutdown switch for three-phase power protection, fuse/safety wire for operating circuit protection, and temperature sensing relay for motor protection.
Stroke Controller utilizes absolute value encoder. Connect the absolute value encoder and reducer via encoder`s axle, and fix the wings on to the reducer, than insert the aviation plug into plug receptacle.
The mounting screw for the control box must inspect regularly to prevent screw been getting loose and falling off. Check the internal and external wirings. Check and change the oil for the redactor on regular basis.
Precision: The system use Full closed-loop servo control and Double Encoder design. This is to ensure long operating life and to prevent overshooting during operating.
Stability: The system utilizes integrated design concept, in order to simplify internal wiring and prevent any function caused by wiring and terminal connections.
High Speed: Motor max speed is 2500 rpm; door max operating speed is 2 m/s.
Smooth: The torque servo system can adjust torque to the load automatically, and its speed curve mode step less speed regulating to ensure a smooth operation.
About SEJ motor and Holip controller: Three-phase asynchronous motor with magnetic brake has broad uses, It is suitable for various mechanical main drive and auxiliary drive, and it is also used for various required rapid stopping and correct positioning. The braking time within 0.2 second. Electric motor is added the DZM series direct current electromagnetic arrester by the basic series(Y series) electric motor.The protection class of electric motor part is IP44,the arrester part is IP23.if be applicable to bad environment can also make the arrester part into IP44,but customer have to put forward a special request while ordering,the manufactory can design a manufacturing exclusively. Its structure diagram is picture 1 and 2,picture 1 is the structure with hand release.Picture 2 is the structure without the hand release.Its operating principle BE, after being to make the retardation coil(6)to connect direct current power supply,because of the function of electromagnetic force,electromagnet(7)attract gag bit(5),and compress spring(24),make arrester disc(2)away from the friction surface of the gag bit(5)and shield(26)(the electrical motor can immediately operate normally).When the power supply cuts off after,the electromagnet(7)loses electromagnet force,the spring(24)releases the gag bit(5)and compress tightly to arrester disc(2),the arrester function,stop(the motor shaft)quickly,make electric motor shop turning to move,for the second time connect power supply will repeat above-mentioned action.
High Speed Door Motor And Control Box,High Speed Door Motor,High Speed Door Servo Motor,Variable-Frequency Servo Motor
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.spiralfastdoor.com
