- Full time reading time is about 5 minutes - Compared with the labor insurance industry, although there are no vicious social events such as "toxic runway", the occurrence of malignant tumors such as counterfeiting, shoddy goods, and low price competition also infringes the normal and orderly development of an industry. Industry groups also play an increasingly important role due to their influence in the industry. This standard complies with the national standardization related policies, laws, and regulations, and based on domestic and foreign labor protection supplies, especially on the basis of the level of filtration efficiency detection technology and equipment for masks or respirator, through the investigation of domestic and foreign main filter materials and the status quo of manufacturers. And the development level, with reference to the existing GB2626-2006 and other relevant national standards and norms for the preparation. The standard specifies in detail the technical requirements for PM2.5 respirator (including particulate filtering efficiency, formaldehyde prevention effect, PH value, dye usage, anti-microbial effect), detection method, identification and instructions for use. The filtration efficiency specified by the standard is divided into two levels: F90 with a filtration efficiency of ≥ 90% and F95 with a filtration efficiency of ≥ 95%. The standard is not in accordance with the GB2626 classification method is to consider that even in the air when the concentration of particles in the air is generally <1mg/m, F95 masks can meet the protection requirements. In addition, mask tests use particles with a diameter of 3 μm because particles of this size are the most difficult to filter. Although PM2.5 particles are small, they rely on the Brownian motion of the particles themselves to be relatively easily blocked outside the mask. Industry Health Needs Corporate Self-discipline Innovation Leads Industry Development 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
The emergence of the “toxic runway†problem has a lot to do with the lack of innovation awareness of related companies. Since existing materials have potential safety hazards, they should not be coveted for low prices and not invest in R&D and application of new materials and processes. In our labor insurance industry, many companies have invested in environmental protection facilities, such as the United States Shoe Co., Ltd. Heiner, invested ten million yuan to build DMF environmental protection equipment, both a greater level of protection of the safety of their work environment sector workers, but also bear The social responsibility that a company should undertake. This is a necessary condition for the healthy and orderly development of an industry. Only companies can discipline themselves, and only innovation can lead the industry's rapid development. In recent years, the labor insurance industry group organizations represented by the China Textile Industry Association Safety and Health Protective Products Committee and with Jiangsu, Zhejiang and Shanghai as main forces have played an active role in promoting the development of the labor insurance industry, especially the labor protection of the two sessions each year. The trade fair also pushed some excellent and good companies to the society. 
Shanghai Namei Shoes Co., Ltd. DMF 　　 The development of the industry requires the self-discipline of the enterprise, but it also requires the effective supervision of the government and industry organizations. The enterprises with defects in production and management are required to make corrections and help them improve. Form a team of experts, actively propose amendments to the current national standards, and make joint efforts for the standardization of the industry through the strength of the industry and the enterprise in the absence of national standards. 
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