Pay attention to the suitability of choosing ppe

Species classification

Short Cimicifuga brachycarpa PK Hsiao

Multiple leaflet Cimicifuga foetida L. var. foliolosa PG Xiao

苞Ciicifuga foetida L. var. longibracteata PG Xiao

Cinnamomum foetida L. var. velutina Franch. ex Finet & Gagnep.

Cimicifuga heracleifolia Kom.

Nanchuan Cimicifuga nanchuanensis PK Hsiao

Cimicifuga simplex (DC.) Wormsk. ex Turcz.

Yunnan Cimicifuga yunnanensis PK Hsiao

Canned Whole Mushrooms

Whole Mushrooms Canned,Whole Mushroom In Can,Mushroom Whole In Can,Whole Canned Mushrooms

DOCANNED , https://www.docannedfamily.com

                    Overview:
As the next step forward in the award-winning VersaUV series, the LEJ-640FT offers unparalleled print capabilities, allowing you to explore a new world of products and applications, including heavy, rigid materials up to six inches thick and weighing up to 220 pounds.

VersaUV® LEJ-640FT Large-Format UV Flatbed Printer Specifications

Print on materials that used to be too thick or heavy
The LEJ-640FT has a 64" x 98" bed that handles heavy materials up to 6" thick, 220 lbs. and industry standard 4' x 8' sheets. Its all-steel frame reduces vibration and adds supporting strength, while its zoned vacuum bed holds media steady to ensure stable printing. As one of the coolest UV Flatbed Printers on the market, it offers low-heat, state-of-the-art UV-LED lamps that combine with advanced ECO-UV inks for exceptional printing on virtually any substrate. ECO-UV ink adheres to a wide range of treated and untreated media, including:
Foam Board, Plywood, Film, Sinta, MDF, Tile, Acrylic, Glass

Why Choosing Us?
1. Strict Quality Control:  We have over 10 workers cooperating on Quality control both for the original Material and finished Goods. QC before delivery is also what we need for each order.
2. One stop Solution:  We offer a wide range of sublimation paper, dye sublimation ink and Blanks. Making you able to source all the items you need.
3. Reasonable Pricing:  We run our own coating factory and Heat Press Machine assembling Workshop, thus to offer the most reasonable pricing and give the most profit to our clients.
4. Fast Delivery:   We offer one week delivery for most paper orders. And 2-3 weeks production lead time for other sublimation inks.
5. Responsible after sale service: As a responsible company, we never make any exercise for mistakes, clients comes first, any complaint is supposed to be settled in a responsible manner.

Nanjing Fei Yue Paper Industrial Co., LTD
Tel: 86-25-83228884
Fax: 86-25-83228894 
Web: www.feiyuepaper.com & www.skyimagepaper.com

 

16"14.5g White Powder Strut Hanger

Lightweight White Powder Strut Hanger,Special Design White Powder Strut Hanger,Excellent Workmanship Strut Hanger,New Creative Strut Hanger

SHAOXING DINGLI METAL CLOTHESHORSE CO., LTD , https://www.dingliclothrack.com

Pharmacological effects

【Functions】Clearing heat, detoxifying and translucent

【Indications】 poor measles, fever, hot spots, tongue sores, sore throat, sores, erysipelas, no gas in the trap, Jiuxie anus, uterine prolapse, blood clotting.

[3] 1. Pea spicules (like peas, with white pulp, spread from the head and body, not life-threatening). With honey, fried cohosh, ready to eat. Another boiled cohosh, cotton stains sore sauce.

2, sudden swollen poisonous. Cohosh Vinegar, coated at any time.

3, throat. The use of Cimicifuga tablets containing pharynx, or Cimicifuga two water Jianshui clothes, cited as a result of vomiting.

4, stomach hot toothache. Cimicifolius decoction, simmer and swallow. Fang added rehmannia can also be.

5, mouth sores. With 50 grams of Cimicifuga, 1.5 grams of Coptis, a total of research for the end. Cotton wrapped Yaomo contains pharynx.

6, hot itch itch. Use Citrus decoction to serve and wash the dumplings.

7, postpartum bad blood. With 150 grams of Cimicifuga, add five liters of sake and boil it for two liters and take it in two doses.

8, solution spasm, Kudzu and other poisons. Use Cimicifuga sauce and serve more.

9. It is used for hot-spotted macules, floating odor of gums, mouth sores, sore throat, and sores. The product is detoxified to cure stomach phlegm floating gums, tongue sores and sore throat, clinical often with gypsum, berberine and other compatibility; fever, fever, body rash and sore swelling, Cimicifuga Can be equipped with silver, forsythia, red peony, angelica equivalent.

1. Effect on the cardiovascular system Cimicifuga water extract injection in animals has the effect of reducing blood pressure, inhibiting myocardium, and slowing heart rate. Xing'an Cimiceng can lower blood pressure and strengthen the heartbeat amplitude without affecting its rhythm.

2. Antibacterial effect in the test tube Cimicifolia can inhibit the growth of Mycobacterium tuberculosis. Its variant Cimicifuga foetida L. var. simplex Huth. Infusing agent (1:4) in test tubes against Xanthomonas mutans, Bacillus sphaericus, Pseudomonas rustiana, red epidermis Fungal bacteria and other skin fungi have different degrees of inhibition. Some reports indicate that Cimicifuga has a strong inhibitory effect on Staphylococcus aureus and Bacillus anthracis; it also has different degrees of inhibitory effect on Streptococcus, Diphtheria, Salmonella, Salmonella typhi, Escherichia coli, and Shigella.

3. Sedative, anticonvulsant effects The water extract of Cimicifuga has a sedative effect, and it can fight convulsions caused by camphor or strychnine in mice experiments. Xing'an Cimicifuga also has a sedative effect on the animal's central nervous system. It contains isoferulic acid that can slow down animals, tend to be sedated, and has relatively weaker toxicity.

4. Effect of antipyretic and cooling effect Xing'an Cimicifuga extract or isoferulic acid can reduce normal body temperature in rats, and have significant antipyretic effect on febrile rats induced by typhoid fever and paratyphoid mixed vaccine. Cimicifuga extracts and Cimicifolia have a cooling effect on experimental animals.

5. The effect on smooth muscle Cimicifuga water extract can inhibit the isolated intestine and pregnancy uterus, on the bladder and non-pregnant uterus excited; Xing'an غير مجاز مي باشدomnia relaxation intestinal smooth muscle; but also enhance the secretion of bronchial and digestive tract glands; The uterus contracts. It has also been reported that the furanchromone derivative Khellin has a clear antispasmodic effect on smooth muscle (bladder, uterus, etc.), and furanochromones are the main active components of the rhizoma of the coccidia.

6. Other effects of methanol extract of Cimicifuga can effectively prevent carbon tetrachloride-induced animal liver injury.

Cimicifuga can significantly shorten the bleeding time before and after frying the charcoal, and can also shorten the clotting time to a certain extent, and have obvious hemostatic effect. Experiments show that: Cimicifuga extract 0.2g (crude drug) / ml, in vitro can significantly prolong bovine thrombin agglutination of human fibrinogen time, there is a strong anticoagulant effect.

Reports have pointed out that wild ephedra has ***ual hormone-like effects that can establish adolescent rats with adolescent hypoplasia and climacteric female rats, and also increase ovarian weight and increase the number of corpus luteum in juvenile female rats. Long-term injection of wild cohosh extract to female animals can increase the weight of the uterus.

Drug (poison) science

After people apply large doses, headaches, tremors, tetanic contractions of the limbs, abnormal erection of the penis; no special pharmacological effects of ricinine, can cause skin congestion, and even the formation of ulcers; oral administration causes gastroenteritis, severe dyspnea can occur, Oh, wait. Gastric gavage in mice and intragastric administration of rats were 8.1 g/kg and 7.9 g/kg, respectively.

Sesame Products Gift Package

Sesame Products Gift Package,Organic Black Sesame Products Gift Package,Organic Black Sesame Seeds Products Gift,Organic Black Sesame Products Gift Box

Chinese Seasoning (Shandong) Trading Co.,Ltd , https://www.zt-trading.com

For a long time, China's bathroom hardware products have the advantage of being cheap and beautiful. They are deeply loved by foreign distributors and consumers, and their export value has doubled. In the past 10 years, China's sanitary hardware industry has taken over the responsibility of the transfer of national industries and has become the world's largest hardware manufacturing country.

However, as people's living standards improve, people are pursuing the beauty of the bathroom while paying more attention to the comfort and security they bring. The quality of hardware accessories directly affects the health of people. Bathroom hardware companies can no longer walk. The "winning by price" marketing approach should instead put product quality at the top of the list. Only by making consumers comfortable, can companies win the favor of consumers in the fierce competition. Therefore, companies should strengthen the research and development of products and innovate to meet the increasing needs of people with superior product quality.

As a leading company in the hardware industry, Guangdong Dongtai Hardware Group has grown by double digits every year since it was established in 1991. It is the first company in the industry in the same industry to obtain “China Famous Trademark” and one of the largest hardware manufacturers in Asia. Its success also benefits from its strong quality management advantages.

It is understood that from raw material procurement to shipment inspection, Dongtai Group implements strict quality control on the entire process, and provides a strong guarantee for product quality through production automation. Not only that, Dongtai DTC has set up a professional R&D team. It independently researches and develops a large number of products with novel functions and patent protection. It has independently researched and developed five categories of middle and high-end hardware accessories and thousands of products of various types. It satisfies the needs of consumers very well. Its excellent quality and excellent service have won the trust and support of customers from all over the world.

According to industry insiders, the past decade has been the peak period for the development of the hardware industry, but the bottleneck period for the development of the industry is closely followed. In such a large environment, the bathroom hardware market competition must be more quality-oriented, control the quality of the products in order to guide the entire industry on track, and achieve sustainable development of the company. In addition, in addition to quality product quality, companies need to do a good job of after-sales service, establish a good brand image, and help companies transform and upgrade.

Flood Light

We diviided the led light according to the using eviiroment. Most  of our product is the commercial LED Lighting

Commercial lighting is a term used to describe lighting that is used in commercial spaces, including auto dealerships, distribution centers, churches, factories, offices, and warehouses. Unlike residential lighting, commercial lighting is made to withstand more abuse and has a longer lifespan. 

While the focus of residential lighting is often on aesthetics, commercial lighting is task orientated. Commercial lighting systems are designed based on what the application is. For example, in an office-type setting, you may see task lighting, which illuminates specific areas where employees need concentrated light to be able to perform their jobs. 

Flood Light,250W Led Flood Light,Led Flood Light 400 Watt,Led Flood Light Solar

Jiangmen Dilin Lighting High-Tech Co., Ltd. , https://www.dilinlight.com

Technical exchange At present, video surveillance systems using wireless network technology rely on their cheaper prices, more flexible deployment methods to get the majority of video surveillance users of all ages, and gradually become one of the development direction of video surveillance technology. Combining embedded technology and wireless video monitoring technology, this paper presents a solution of wireless intelligent video surveillance system based on embedded ARM technology.

With the development of high-tech such as communication technology, computer technology, digital video technology, and network technology, the field of video surveillance has also progressed rapidly. In recent years, the development of embedded computer technology and network technology has promoted the further progress of video surveillance, and a wireless network video surveillance system based on embedded technology has emerged. The wireless network video surveillance system adopts a multi-task embedded operating system and uses an embedded chip to complete the compression transmission and processing of video. The chip has a powerful digital processing function, and the video can be directly connected to the network after the chip is processed. In this way, the user can view the images captured by the camera over the network for real-time remote video surveillance.

It is understood that, compared with other monitoring systems, the use of embedded wireless video surveillance system is easy to install, small size, can be achieved unattended. This kind of system has low غير مجاز مي باشدt, high stability, real-time characteristics, and convenient operation and maintenance. The embedded wireless video monitoring system integrates wireless communication technology and embedded technology. It has evolved from the previous monitoring system. This system saves a lot of network wiring غير مجاز مي باشدts, and the wireless video monitoring system with embedded technology is compact and flexible. Video surveillance for special occasions can meet application requirements. This article proposes a wireless video surveillance system solution based on embedded technology. The wireless video surveillance system designed by using this scheme has high stability, high reliability, strong video signal processing capability, easy installation and arrangement, and low price.

1, a system design

embedded video monitoring system as the overall design, has two parts: First, the ARM chip embedded video monitoring terminal; second computer video receiver. The video monitoring terminal using embedded ARM chip is mainly responsible for the processing of video images in this system, including image acquisition, compression, image motion target detection, and video data transmission.

The computer video receiver is mainly responsible for receiving and saving images in the computer system in this system.

This paper presents the overall design scheme of wireless intelligent video surveillance system based on embedded ARM technology. The scheme includes the hardware design framework and software design flow of the system. The video monitoring end program is realized by using C language programming under Linux system, and the computer video is received. The end program is directly implemented using C language programming under Windows system. In this design, the wireless intelligent video surveillance system uses the C/S mode to implement video image transmission based on the TCP/IP protocol. The main task of the ARM video surveillance terminal is to wait for a connection request from the PC video receiver to perform continuous video image acquisition. The main task of the computer video receiver is to play and store the video, send a connection request to the video monitor, and receive and display the video.

Figure 1


Figure II

Figure 3

Figure 4

Figure five

Figure 6

Paper Bag-making Machinery

Paper Bag-making Machinery

Applications

1.Use water-based inks to achieve environmentally friendly printing standards;

2.High production efficiency, more suitable for large-scale long-running activities;

3.Can be used with various types of bag making machines; automated production, reducing labor غير مجاز مي باشدts;

4.Save printing paper and ink.

Paper Bag Machine,Paper Bag Making Machine,Biodegradable Bag Making Machine,Square Bottom Paper Bag Machine

Ningbo New Glory International Trading Co.,Ltd , https://www.newglorymachine.com

The main prescription

1. Cimicifuga puerariae soup ("Ran's Pediatric Formula"), to relieve muscle rash, treat typhoid, epidemic fever, fever, headache, limb pain, and sores have not yet been made. Fang Yun’s selection of Wu Kun’s “Medical Examination” Volume 6: “The pulse of foot and Yang Ming is against the nose, so it is painful and dry to the nose. It cannot be insomnia, the Yangming is the stomach, and the stomach cannot be rested. At the beginning of this evil, there was no madness yet, no sweat, no chills, no fever, and there were cold evils. The medicine was ***ual, and the sims could make it to the table, and the light could make it real. The hemp and pueraria light are also light, so use it to reach the table and go to reality. Cold and evil wounded people also, the blood stasis lag, with peony, use and blood also; with licorice, with gas regulation also.”

2. Xuanxue published the soup ("pox rash end record"), relieve muscle rash, governance measles beginning, no desire to come out, heat and no sweat, cough, sore throat.

3. Cimiculi A soup side ("Golden Chamber"), the treatment of yang poisoning for the disease, the face red spots such as Jin Wen, sore throat, spit blood and pus.

4. Buzhong Yiqi Decoction ("Spleen and Stomach"), Bu Zhong Yi Qi, Sheng Yang raise depression, rule Qi deficiency, lazy words, fever, spontaneous sweating, thirst and warm drink, long diarrhea, long time, uterine غير مجاز مي باشدging , Anal prolapse, Qingyang subsidence and other evidence.

5. Lima Decoction ("Medical Center for Participation in Western Record"), Qi Qisheng depression, rule the chest in the atmosphere subsidence, shortness of breath, shortness of breath, difficulty in breathing, the pulse is weak late.

6. Yuan Yuan Jian ("King Yue Quan Shu"), Qi Qi Sheng mention, governance Qi deficiency subsidence, Xuela blood off, death yang is critical.

7. Cimicifuga pills ("Sheng Hui Fang"), treatment of throat pharyngeal occlusion, body fluid barrier.

8. Lima Tang ("San Franciscans"), rule the wind and heat, dizzy sores all over.

9. Lima Tang ("San Franciscans"), the rule began to be hard, purple skin, cold and hot, one or two days did not become a pus.

10. Treatment of postpartum evils is not complete or through January, half year old, one year old: Cimicifuga 150 grams. Five litres of sake will be boiled for two liters and then served. ("Prepare for the Thousand Gold Expenses")

11. Treatment of lung sputum vomiting pus and blood, as odor, chest pain between the pain: Chuanxi Ma, Campanulaceae (fried), Coix seed, earthworms, sub-cockroaches (skin scraping), peony bark, white peony root 25 grams of licorice 1.5 Ke. The upper kibbles serve 50 grams of water per serving and simmer until they reach the fifth. ("Premier Fang" Ci Ma Tang)

other

Fresh Food: Cimicifuga sinensis is the young stem of the Ranunculus plant before the leaves of the Ranunculus Cimicifugadahurica (Tur-CZ.) Maxim. Also known as bitter herbs, bitter teeth. Cimicifuga is a perennial herb, with two to three backs and three compound leaves, alternate and ovate. In the early spring, the juniper stems of the young (before the exhibition leaf) were collected and returned to the home. After cleansing, they were boiled with boiled water and served with salted water. The scent was refreshing and slightly bitter. The wonderful thing is that eating a bit of cohosh and eating a small rice porridge is bitter and sweet. It turns out that because of the polysaccharides in the millet and the ferulic acid and isoferulic acid in the cohosh, a hydrolysis reaction produces sucrose and fructose.

The young leaves can also be used for salad dressing, cooking or staple food filling. With detoxification, pharynx, swelling effect. Regulating gastritis, toothache, sore throat, mouth sores and so on. Can be used as wild vegetables.

Drying: After dipping the buds of Cimicifuga with boiling water, pay attention to separating the tender stems from the leaves and drying them. After winter, soak them in warm water and dip them.

Frozen storage: After dipping the buds of cohosh color with boiling water, they are kept frozen in a freezer and slowly frozen in cold water when consumed.

Pickling: Cinnamon shoots will be collected, bundled together with highly uniform rubber bands, cut into roots, marinated in saturated salt water, and desalted with warm water when consumed.

Taboo

Yin Yang floating, breathing full of gas reverse and measles has been through the permit Jifu served Cimicifuga. Excessive use can cause dizziness, tremors, arrested limbs and other evidence.

Nucleic Acid Extraction Reagent Kit 300T(manual)

This kit can separate and purify high-quality total RNA from various specimen, and can achieve safe, fast, convenient and efficient RNA extraction. This product can also perfectly fit with automated nucleic acid extractors with different throughputs. The magnetic beads can be absorbed, transferred and released by a special magnetic rod to realize the transfer of magnetic beads and nucleic acids and improve the degree of automation.

nucleic acid extraction reagent,nucleic acid purification reagent,dna rna extraction reagent,rna isolation reagent,nucleic acid extraction reagent kit

Shenzhen Uni-medica Technology Co.,Ltd , https://www.unimed-global.com

                    Deck Floor Roll Forming Machine




1.Main Components
Decoiler -------------------------------------------------- 1 Unit
Feeding guide ------------------------------------------ 1 Unit
Main roll forming machine --------------------------- 1 Unit
Hydraulic cutting device ------------------------------ 1 Unit
Hydraulic Station --------------------------------------- 1 Unit
PLC computer control -------------------------------- 1 Unit
Output table ---------------------------------------------- 1 Unit

2.Technological process

Uncoiler-Feeding-Leveling-hydraulic punching-Hydraulic cutting-Roll forming-Output table

Technical drawing



3. Technical parameter
 

FAQ
1)Q:Can you make machine according to my design?
   A:Yes, we have experienced technical team to work out the suitable design for you and confirm with you until you agree.
2) Q: Will you deliver the right goods as ordered? How can I trust you?
    A: Yes, we will. The core of our company culture is honesty and credit.
3)Q:What payment terms you accept?
    A:Commonly is TT, 30% deposit and 70% before shipment, and sometimes we can consider more for you as per your request.
4) Q:What is the warranty for our machine?
    A:We have one year guarantee, and provide whole life's technical support.

Crankshaft

Crankshaft

zhejiang hongwei Cylinder co.,ltd , https://www.hongweicylinder.com

We honored to inform you that we will attend "PLASTVISION INDIA 2017" held in Mubai from Jan19th- 23th, 2017.

You can make an appoinment in advance or visit our booth directly. Warmly welcome !

Contact Person: Andy Lee sales@novistagroup.com

Contact Person: Ron Han manager.han@novistagroup.com

Booth No.: E16-7

Tin Stabilizer

Methyl tin mercaptide stabilizer ProStab - T181

Substitute equivalent to American TM-181-FS

Methyl tin stabilizer is an efficient stabilizer used in PVC hot working process. Its stability, transparency, compatibility and weather resistance are all superior to other organotin heat stabilizers. It is widely used in PVC sheet, panel, tubing and blow molding and injection molding products. It can also be used in food packaging, medicine packaging and non-toxic and harmless PVC products. Overseas, PVC products of various foods, medicine packaging and storage, and container and tubing for supplying drinking water with high requirements have all employed methyl tin as stabilizer. Its products boast pure color and luster, less odor vanishing fast and reliable safety performance. With the same effect, the using amount of methyl tin is reduced by 15-20% than that of other similar organotin stabilizers. Our company`s products have passed the ROHS certification.

Methyl Tin Mercaptide,Tin Stabilizer,Methyl Tin Stabilizer,Organotin Liquid Stabilizer

Shandong Novista Chemicals Co.,Ltd (Novista Group) , https://www.novistachem.com

Dual-screen guest machines can quickly and easily register identity information by scanning the ID card and register visitors. This simplifies the complicated procedures for manual registration and reduces the workload of the company’s front desk staff. Let’s take a look at the dual-screen guest machine. effect:

1. Blacklist management, appointment function, enhanced identity management for visitors;

2. Distribute access control cards and print receipts (printing format can be customized);

3, set the door details, including permissions, coercion code, super password settings;

4, document scanning and identification, automatic entry of visitor information;

5, automatic telephone dialing, client prompts, eliminating the need to check the extension time;

6, real-time camera function, save visitors' real-time information;

7. The guard's surveillance function prevents other people from replacing visitors;

8, query and statistics functions;

9. Visitors can enter the door only through temporary cards or slips;

10, set the time information, normally open normally closed, holidays, etc.;

11, data backup and restore.

Eyelet Fabric

Eyelet Fabric,Cotton Eyelet Fabric,Wholesale Knit Fabric,Eyelet Fabric By The Yard

SHAOXING BAOYING TEXTILE CO.,LTD , https://www.baoyingfabric.com

The sensor believes that you hear a lot, but I believe that everyone is still unfamiliar with the "sensor switch". What is a sensor switch? The following to understand from several aspects, I hope to help everyone!

I. Overview In all types of sensors, there is a component that has "feel" ability to approach its object - displacement sensor. This kind of sensor does not need to touch the detected object. When an object moves to the displacement sensor and approaches a certain distance, the displacement sensor has “perceived”. Usually this distance is called “detection distance”. The proximity switch is a switch that is made by using a displacement sensor to sense the proximity of an object.

Different sensors detect different distances. Sometimes the objects to be inspected are moved one by one at certain time intervals and one by one, so that they repeat continuously. Different sensor elements have different response capabilities to detection objects. This response characteristic is called "response frequency".

Second, the sensor classification Because the displacement sensor can be made according to different principles and different methods, and different displacement sensors on the object's "perception" method is also different, so the common sensors are the following:

1. Inductive Sensors Inductive sensors, also called eddy current sensors, consist of three major components: an oscillator, a switch circuit, and an amplifier output circuit. The oscillator generates an alternating magnetic field. When the metal target approaches this magnetic field and reaches the sensing distance, eddy currents are generated in the metal target, which causes the oscillation to attenuate and even stop vibration. Oscillator oscillation and stop changes are processed by the post-amplifier circuit and converted into a switching signal to trigger the drive control device to achieve non-contact detection purposes. Thus, the object that can be detected by this proximity switch must be a conductor.

2. Capacitive Sensors The measurement of such a sensor is usually a plate where the sensor is fixed to form a capacitor, while the other plate is usually grounded or connected to the housing of the device during the measurement process. When an object moves to a sensor, whether it is a conductor or not, because of its proximity, the dielectric constant between the two plates of the capacitor will always change, so that the capacitance of the capacitor will change, making the state of the circuit connected to the measuring head. It also changes along with it, thereby achieving non-contact detection. The object to be detected by this proximity switch is not limited to a conductor, an insulating liquid, a powder, or the like.

3. Hall-effect sensor When a metal or semiconductor sheet with a current is placed vertically in a magnetic field, potential differences are generated at both ends of the sheet. This phenomenon is called the Hall effect. The potential difference between the two ends is called the Hall potential U, and its expression is U=K·I·B/d, where K is the Hall coefficient, I is the passing current in the slice, and B is the applied magnetic field (Loren The magnetic induction intensity of L. C. Lorrentz), d is the thickness of the slice.

It can be seen that the sensitivity of the Hall effect is directly proportional to the magnetic induction intensity of the applied magnetic field. The Hall element belongs to such an active magnetoelectric conversion device and is a magnetic sensor. It is based on the Hall effect principle, using the integrated packaging and assembly process, it can easily convert the magnetic input signal into the actual application of electrical signals, but also has the practical application of industrial applications, easy operation and reliability The request. The Hall switch is made using this feature of the Hall element. Its input is represented by the magnetic induction B. When the B value reaches a certain level (such as B1), the trigger inside the Hall switch is turned over. The state of the output level of the Hall switch is also reversed. Transistor output is generally used at the output end. Similar to other sensors, there are NPN, PNP, normally open, normally closed, latched (bipolar), and dual signal outputs. Hall switch has the characteristics of no electric shock, low power consumption, long service life, high response frequency, etc. The internal use of epoxy sealing and integration, so it can work reliably in all kinds of harsh environments.

When the magnetic object moves close to the Hall switch, the Hall element on the detection surface of the switch changes the internal circuit state of the switch due to the generation of the Hall effect, thereby recognizing the presence of a magnetic object in the vicinity, thereby controlling the on or off of the switch. The proximity switch must be a magnetic object.

4, photoelectric sensor photoelectric sensor uses the photoelectric effect. The light emitting device and the optoelectronic device are mounted in the same test head in a certain direction. When there is a reflective surface (detected object) approaching, the optoelectronic device receives the reflected light and then outputs the signal, thereby "sensing" the approach of the object.

Optical proximity switches made with photoelectric sensors can detect a variety of substances, but have a large error in the detection of fluids.

5, pyroelectric sensor pyroelectric sensor can sense the temperature changes, the pyroelectric device is installed on the switch detection surface, when there is a different temperature and close to the object, the pyroelectric sensor output signal changes The proximity of the object can be detected by converting the sensor output signal.

6. Linear proximity sensor The linear proximity sensor is a kind of linear device that belongs to metal induction. After the power is turned on, an alternating magnetic field will be generated on the sensing surface of the sensor. When the metal object approaches this sensing surface, the metal will generate eddy currents. The energy of the oscillator is absorbed, and the amplitude of the oscillator output is linearly attenuated, and then the object of non-contact detection of the object is completed according to the change of attenuation.

The proximity sensor has no sliding contact, is not affected by dust and other non-metallic factors during operation, and has low power consumption, long life, and can be used in various harsh conditions. The linear sensor is mainly applied to the intelligent control of analog quantity in the automation equipment production line.

Third, characteristics 1, non-contact detection, to avoid damage to the sensor itself and the target.

2, no contact output, long operating life.

3. Stable detection even in harsh environments with water or oil splashes.

4, the reaction speed.

5, a small sensor head, flexible installation.

Fourth, the main purpose of these proximity switch sensors in aerospace, aerospace technology and industrial production in a very wide range of applications; in daily life, such as hotels, restaurants, garages automatic doors, automatic hot air have applications; in terms of security, such as information Archives, accounting, finance, museums, treasury, and other places are usually equipped with anti-theft devices consisting of various proximity switches. In measurement technology, such as length, position measurement; in the control technology, such as displacement, velocity, acceleration measurement and control, also have a lot of use. The method used is usually made into a proximity switch.

V. Application Cases Proximity Switch Sensors Applied to Metro Screen Doors With the rapid development of the domestic subway industry and the frequent occurrence of subway traffic accidents, subway screen doors will be used more and more by subway stations. Sensors are the best instruments for automated intelligent devices. Proximity switch sensors will be heavily used in the technical application of screen doors. Subway accidents will be minimized in the application of sensors.

Proximity switch sensor is a common scheme used by many screen door systems to detect door opening and closing. Generally, two door switches are used to detect door opening and closing. In addition, the amount of photoelectric switches used in the system is also very large, and all screen doors will use more sensor technologies. It is not difficult to see who has applied many sensor technologies and who will be the strongest in the market. Intelligentization and automation will rely on sensors to be closely linked.

6. Selection Principles In general industrial production sites, eddy current proximity switches and capacitive proximity switches are generally used. Because these two kinds of proximity switches require less environmental conditions.

When the object to be measured is a conductive object or an object that can be fixed on a metal object, an eddy current proximity switch is generally selected because of its high response frequency, good resistance to environmental interference, wide application range, and low price.

If the measured object is non-metal (or metal), liquid level, powder height, plastic, tobacco and so on. Capacitive proximity switches should be used. This switch has a low response frequency but good stability. The environmental factors should be considered when installing.

If the object is magnetically permeable or immersed in the object to be measured in order to distinguish it from objects that move with it, the Hall proximity switch should be used, which has the lowest price.

In the case of better environmental conditions and no dust pollution, photoelectric proximity switches can be used. When the photoelectric proximity switch works, it has almost no influence on the measured object. Therefore, on demanding fax machines, automatic machines, money detectors, power take-off switches and the like are widely used in tobacco machinery.

In anti-theft systems, automatic doors typically use pyroelectric proximity switches, ultrasonic proximity switches, and microwave proximity switches. Sometimes, in order to improve the reliability of recognition, the above-mentioned types of proximity switches are often used in combination.

No matter which kind of proximity switch is chosen, attention should be paid to the requirements for various indicators such as working voltage, load current, response frequency, and detection distance.

Explosion Proof Electric Hoist

Explosion-Proof Electric Hoist 

Maximum Load:1000-100,0000kg 

As a world`s leading Crane manufacture and service provider, we fit out our factory with first-rate manufacturing equipment, in addition to recruiting a team of ecperienced employees with great expertise. Hence we can ensure that every product products is completed to a high level of safety, reliability and quality. There are a full range of explosion-proof, spark-resistant electric chain hoists in our company that meet the latest explosion protection standards. Our products have been widely used in the food, chemical, and petroleum and natural gas industries as well as in any other potentially explosive environment.

We strictly follow the related ATEX 100a (94/90/CE) directives and CE directives in making qualified chain hoist that can be used in Zone1, Zone 2, Zone 21, and Zone 22 areas as classified in the ATEX directives.

Configurations: 

•       Explosion proof classification: EEx de IIB T4 

•       Standard lifting height: 3m

•       One speed for lifting motion, or optional two speed for lifting motion  

•       One speed for trolley travel, or optional two speed for trolley travel

•       Degree of protection for motor: IP55

•       Load moment limiter

•       Pendant control station that contains an emergency stop button

Optional Configurations: 

•       Explosion proof classification: EEx de IC T4 

•       Upper Limit and lower limit switch

•       Platform trolley that provides shorter headroom

•       Remote control system

•       Higher degree of protection

•       Fire-resistant function: copper hook, copper lift wheel, anti-derail copper roller

•       Anti-rotation hook

Explosion Proof Electric Hoist,Electric Wire Rope Hoist,Proof Lifting Hoist,Explosion-Proof Electric Wire

Eurocrane (China) Co., Ltd. , https://www.craneparts.pl