UL is short for Underwriter Laboratories Inc .. The UL Safety Testing Institute is the most authoritative in the United States and a larger private institution engaged in safety testing and identification in the world. It is an independent, non-profit, professional institution that conducts tests for public safety. It uses scientific testing methods to study and determine whether various materials, devices, products, equipment, buildings, etc. are harmful to life and property; determine, write, and issue corresponding standards and help reduce and prevent life. At the same time, information on the loss of property is carried out, and the fact-finding business is carried out. In short, it is mainly engaged in product safety certification and business safety certification business, and its ultimate purpose is to provide the market with a fairly safe level of commodities, and to contribute to the guarantee of personal health and property safety. In terms of product safety certification as an effective means to eliminate technical barriers to international trade, UL also plays an active role in promoting the development of international trade.
Our automatic door kits include 1 motor+gear reducer, 1 belt,7 meter, 1 idle pulley, Microprocessor, 4 sets of carriage blue wheels, 2 sets of floor guides,2pcs remote control, 2 sets belt clamp mounting brackets, 1 power supply harness and cable connectors, 2 locator, Aluminum track whose length is 2.08 meter, 3 meter, or 4 meter.
We are a manufacturer of automatic door openers that are designed to provide people convenience. Automatic Door Systems` drive to provide that level of service is but one of the reasons why automatic doors are becoming more and more popular. Our Automatic Sliding Door systems are modern, space-saving and elegant.
Automatic sliding doors have many basic functions some of which include: automatic mode with full opening width and/or reduced opening width, and exit only for traffic control. The opening of automatic doors can also be adjustable to make the opening width smaller or larger. Important safety functions such as safety sensors prevent the door from shutting if persons or objects are in the detection zone. If the door leaves are inhibited when closing, they are immediately re-opened or if the door leaves are hindered when opening, they are immediately stopped by a safety automatic reversing mechanism.
Our most popular sliding automatic door. Think of this as the go-to door for everyday automation needs. All components fully tested and pre-assembled at factory for fast, trouble-free installation.
Applications: Retail, healthcare, airports, hospitality, clean rooms. Shenzhen Hongfa Automatic Door Co.,Ltd rated door is designed, test and certified to meet your environment needs. automatic slide doors for industrial, commercial, healthcare, and retail use. You will find our automatic sliding doors throughout in a wide variety of locations, including: Hospitals, Airports, Retail centers, Pharmacies, Hotels, Grocery stores, Hardware stores, Sporting goods stores, and more.
Automatic Sliding Doors can either be a single door sliding in one direction or bi-parting doors where each door leaf slides in the opposite direction. They are often used in grocery stores, entrances to shopping malls, hospitals and other applications where you want to provide your customers a hands free, safe and easy access to your building.In addition, one of the biggest benefits of automatic doors is energy savings. Since these doors only open when someone comes in or out of your building, it prevents the loss of energy when a door may otherwise be left open for a long time.
The control device of sliding automatic door contains basic function and extensional function, automatic operation / hold-open/closed/half-open to meet customer needs. Electric sliding door controller has multiple interfaces for complete access control systems for keeping your life and property more safety. Such as: safety beam photocell, electric locks, sensor etc. Its drive devices adopts European technology to integrate motor with gear box, which offers strong driving and reliable operation and increased power output , it can adapt to a large door.
Providing strength, beauty, and technology all in one package, Hongfa's line of automatic sliding doors provides entrance solutions for practically any application. An exclusive feature is Hongfa's sound-dampening track reducing operational noise to a mere whisper and stops vibration resonance that can be transferred to the building structures.
Automatic Door Kits,Automatic Sliding Door Opener,Automatic Sliding Door Operator,High Performance Automatic Door Kits Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.pvchighspeeddoor.com
The UL standard is a constantly improving document. The requirements for the revision of the UL standard are proposed by people in industry, users, UL engineers, or other interested parties. Industry modification procedures: When it is necessary to modify certain contents of the UL standard, the requirements for the products will change accordingly. For this reason, UL has established a formal industry modification procedure.
The effective date will be announced when each change to the UL standard is published. From the effective date, the relevant products that belong to the UL tracking inspection service must be changed accordingly in accordance with the new requirements, so there is sufficient time between the date of standard modification and the effective date of publication, so that the factory can change its own Products and submit UL test again. After the change request is formally adopted, the industry revision procedure is implemented. The procedure includes: sending a formal notice to the applicant, the starting date of the change, and UL engineers following the same method of identifying the product, helping the applicant to check the parts of the product that need to be changed, and modifying the UL factory tracking inspection file before the effective date. After the new standard comes into effect, UL inspection representatives will visit the manufacturer to review the corresponding changes according to the revision requirements.