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.hfrollershutterdoor.com
I. Mastering the basis of fertilization (1) It is determined that the nutrient content to be absorbed for each 100 kg of cotton produced is 5 kg of nitrogen, 1.8 kg of phosphorus pentoxide, and 4 kg of potassium oxide. (2) The soil with moderate to upper fertility generally provides the capacity to produce 100 kg of cotton per acre, that is, the soil itself can supply 5 kg of nitrogen per mu, 1.8 kg of phosphorus pentoxide, and 4 kg of potassium oxide. (3) The nutrient content of common fertilizers. Urea contains 46% nitrogen, standard ternary compound fertilizer contains nitrogen, phosphorus pentoxide, potassium oxide each 15%, potassium chloride contains 50% potassium oxide, potassium dihydrogen phosphate contains 52% phosphorus pentoxide, 34 % potassium oxide. (4) The utilization rate of commonly used fertilizer nutrients in the current year. The annual utilization rate of nitrogen is 60%, the utilization rate of phosphorus pentoxide in the year is 25%, and the utilization rate of potassium oxide in the current year is 50%.
Second, the development of target production and development of target production should be combined with local climate characteristics, production conditions, production levels and other comprehensive factors. Based on the climatic characteristics, production conditions and production levels of the Huanghuai cotton area, the target yield of high-yield cotton fields is set at 350 kg per mu.
Third, the form, period, role, method, amount of fertilization (a) base fertilizer. Adding common-effect fertilizer can not only supplement the deficiency of quick-acting fertilizer, but also maintain the soil's own fertility. It can evenly apply organic manure 2 to 3 cubic meters and cover it by tillage.
(2) Applying quick-acting fertilizer for the absorption and utilization of seedlings. When re-cultivating and raking land from February to March, 30 kg of standard ternary compound fertilizer was applied, which was equivalent to 4.5 kg of nitrogen, phosphorus pentoxide and potassium oxide, respectively, accounting for 21.6% and 25% of the total fertilization amount. 22.5%.
(3) Topdressing. Topdressing should be carried out in conjunction with watering or rainfall to help maximize fertilizer efficiency.
1. The bud period is topdressing. This period is the critical period of cotton nutrition. The requirements for nutrients are very urgent. Timely topdressing is the most effective measure to ensure the normal development of plants, promote the coordinated development of vegetative growth and reproductive growth. In the middle of June, 40 kg of standard ternary compound fertilizer was applied to the plant at 20 cm from the plant, which was equivalent to 6 kg of nitrogen, phosphorus pentoxide and potassium oxide, respectively accounting for 28.8%, 33.3%, 30 of the total fertilization amount. %.
2. Topdressing during flowering. During this period, the maximum efficiency of early cotton nutrition, the fast absorption of nutrients, the large amount of absorption, a large number of fertilization is the fundamental condition for capturing high yield. In the middle of July, 50 kg of standard ternary compound fertilizer was applied to the plant 30 cm away, and potassium sulphate or potassium chloride was added in an amount of 7.5 kg, and 7.5 kg of potassium oxide was added. They accounted for 36.1%, 41.7%, and 47.5% of the total fertilization amount, respectively.
3. Shengling period of topdressing. During this period, vegetative growth gradually decreased, and timely topdressing can prolong leaf function and prevent premature aging. In the first ten days of August, 6 kg of urea was applied from 35 to 40 cm of the plant, which was equivalent to 2.8 kg of nitrogen, accounting for 33.5% of the total fertilization amount.
4. Add foliar fertilizer. Foliar fertilizer is mainly used in the late growth stage of cotton, and it can quickly supplement nutrients to prevent premature aging. Foliar fertilizer was added twice in mid-August and early September, and 0.3% to 0.5% potassium dihydrogen phosphate solution was added to 0.5% to 1% urea solution to spray the leaves evenly.
Huaxian County Jingzui Station Shang Hongyan
High-yield cotton field fertilization technology
Rational fertilization is the basic guarantee for high cotton yield and a primary issue in cotton cultivation techniques. The specific practices are as follows:
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