Modern hydraulic door closer achieve the buffer action by throttling the liquid in it. When the door is opened, the door drives connecting rod to act and rotates the drive gear, making the driving rack piston move to the right. In this process, the spring is compressed, as well as the hydraulic oil in the right cavity. The one-way valve ball in the left of plunger opens under the action of oil pressure, and hydraulic oil flow from right cavity to the left through the one-way valve. When the open ...

Door closer is a kind of door hardware fittings and it is the hydraulic device equipped on the door, which is similar with spring. After the door is opened, door closer can close it through releasing the compression, achieving the door’s automatic close like a spring door. And this can ensure that after the door is opened, it can accurately, timely and automatically close to the initial position. The basic components of hydraulic door closer are a supporting guide, a transmission gear, a r ...

With the continuous development of the economy, stainless steel hardware tools manufacturing industry in our country has gradually become the main force for World Hardware tool industry. In some developed countries and developing countries like Africa Middle East, the demand for hardware tools increase by the annual rate more than 10%.The development of electronic commerce: If the traditional traders are still remaining in considering whether the electronic commerce is suitable for hardware circ ...

     Magnetic lock is a new kind of lock body, now has been widely used in various fields. Magnetic lock’s design is the some as electromagnet, when an electric current passes through the silicon steel sheet, electromagnetic lock will produce a powerful suction adsorption to tightly absorb iron plate to achieve the effect of locking the door when you leave. As long as the small current electromagnetic lock can produce a great deal of magnetic, electromagnetic lock power of e ...

Spring hinge, just as its name implies, is a kind of hinge which is made of spring and uses of the elasticity of the spring to avoid the weakness of hinges that cannot close the door. So, when the spring hinge is created, it relies on its own advantages to become popular products in the hinges, immediately to grab the most shares of other hinges. Spring hinge mainly adopts spring steel which has a good  enough flexibility. What’s more, since it is working under the condition of dynamic loa ...

Fluorescent Lamp Starter is our featured product. Ourfluorescent lamp starters use the environmental protection materials and have longservice life. We promise the quick starting of our lamp starter.It is an important componentof the fluorescent lamp, without it, fluorescent lamp cannot be started. Itsworking principle is using the properties of bimetallic strip when heatedbending, which can be made into a special kind of switch to control the on andoff of the circuit. The starter is automatic s ...

      Hardware Fittings are our main products. Hardware accessories are made of metal machineparts or components, as well as some hardware products. It can use alone, alsocan do to assist. For example, hardware tools, metal parts, daily hardware,building hardware, security products and so on. Hardware products are not thefinal consumer goods, however, they are often as industrial manufacturing ofproducts, semi-finished products and tools used in production process and soon. Only a ...

TEERYES supplies the whole series ofbuilding and decorative hardware fittings: hinges, handles, locks, closers,stoppers, bolts, chains, views, indicator, sign plate and so on. After years oftechnical innovation and transformation, production level enhances unceasingly,our company has owned complete hinge line. We are professional productionenterprises, and products continuously allocate and supply throughout thecountry. The continuous piano hinge is used to connecttwo solids, and allow the two s ...