Load-bearing and Rotating Types
Ordinary Hinges: They have a simple structure, consisting of two metal sheets connected by an axis. With a relatively low cost, they are commonly used for ordinary casement windows and can meet the basic functions of opening and closing.
Stainless Steel Hinges: Made of stainless steel material, they have good corrosion resistance and are suitable for humid environments or places with high requirements for the durability of hardware fittings, such as bathrooms, buildings by the sea, etc.
o Damping Hinges: A damping device is added to the hinges. When the window sash closes, it can play a buffering role, slowing down the closing speed, reducing noise and impact force, protecting the window and the hardware fittings. At the same time, it can also prevent the window sash from pinching hands due to closing too quickly.
Spring Hinges: Equipped with a spring device, they can make the window sash close automatically after opening. They are suitable for occasions where the window needs to be kept closed frequently. However, the spring may fatigue and fail after long-term use.
Casement Stays
Ordinary Casement Stays: Composed of a sliding rail and a sliding block, they are installed on the upper and lower frames of the window sash. They are mainly used to support larger-sized or heavier window sashes, enabling the window sash to slide smoothly along the sliding rail for opening and closing, and have a relatively strong bearing capacity.
Hidden Casement Stays: After installation, these stays are hidden between the window sash and the window frame and are not visible from the outside. They have good aesthetics, making the overall appearance of the window more concise and smooth. However, the installation and maintenance are relatively more complicated.
Operation and Locking Types
Handles
Plastic Handles: They have a relatively low cost and a certain degree of decorativeness, with a variety of colors and styles. However, relatively speaking, their durability is not as good as that of metal handles, and they are prone to wear or breakage.
Metal Handles: Such as handles made of aluminum alloy, copper alloy, stainless steel, etc. They have high strength and good durability. The surface can be treated by electroplating, spraying, etc., to increase the aesthetic appeal and corrosion resistance. Among them, aluminum alloy handles are light in weight and moderate in price; copper alloy handles have a good texture and are often used for high-end doors and windows; stainless steel handles have excellent corrosion resistance.
Espag Handles: They integrate the functions of a handle and a lock. By rotating the handle, the window can be opened, closed and locked. These handles are usually used in conjunction with a multi-point locking system, which is convenient to operate and improves the security of the window at the same time.
Locks
Single-point Locks: Install a single locking point on the window sash. They have a simple structure and are generally used in ordinary households or places with low requirements for security. Their advantages are low cost and convenient operation, but their anti-theft performance is relatively weak.
Multi-point Locks: Multiple locking points are set on the upper and lower frames and the middle position of the window sash, and are connected to the handle through a transmission device. When the handle is rotated, multiple locking points are locked or opened simultaneously, greatly improving the sealing performance and anti-theft performance of the window. They are widely used in buildings with high requirements for security.
Smart Locks: With the development of technology, smart locks are gradually applied to casement windows. Smart locks can be unlocked by means of fingerprint, password, mobile phone APP, etc., which is convenient for users. At the same time, they also have functions such as remote control and unlocking record keeping, improving the intelligence level and security of the window.
Limiting and Protective Types
Window Stays
Ordinary Window Stays: Usually made of metal, one end is fixed on the window frame, and the other end is connected to the window sash. They can limit the opening angle of the window sash, prevent the window sash from being damaged due to excessive opening caused by strong wind and other reasons. At the same time, when the window sash is opened, they can play a supporting role, making the window sash more stable.
Invisible Window Stays: After installation, they do not affect the overall appearance of the window and are more aesthetically pleasing. They adopt a special design, hiding the window stay inside the window frame or the window sash. When the window sash is opened to a certain angle, the window stay automatically pops up to function.
Limiters
Mechanical Limiters: They limit the opening range of the window sash through a mechanical structure. Generally, the opening angle can be set by adjusting screws or knobs. They are simple to operate and have high reliability.
Magnetic Limiters: They achieve limiting through the principle of magnetism. Magnetic components are installed on the window sash and the window frame respectively. When the window sash is opened to the set position, the magnetic force attracts each other to limit the further opening of the window sash. This kind of limiter has the advantages of being silent and wear-free. However, the magnetic strength may be affected by environmental factors.
Sealing and Drainage Types
Sealing Rubber Strips
Ethylene Propylene Diene Monomer (EPDM) Rubber Strips: They have excellent weather resistance, aging resistance, corrosion resistance and elasticity. They can maintain good sealing performance under different climatic conditions, effectively blocking the intrusion of wind, rain, dust and noise. They are commonly used sealing rubber strip materials for casement windows.
Silicone Rubber Strips: They have higher heat resistance and cold resistance. At the same time, they have good insulation performance and physiological inertia. They are suitable for some special places with high requirements for environmental temperature, such as high-temperature workshops or buildings in cold regions.
Drainage System Fittings
Drainage Hole Covers: Generally made of plastic or metal materials, they are installed on the drainage holes at the bottom of the window. They are used to prevent dust and debris from entering the drainage holes and ensure that rainwater can be discharged smoothly. The drainage hole covers usually have a certain waterproof design, which can effectively prevent rainwater from flowing back.
Drainage Troughs: Installed at the bottom of the window frame, they are used to collect and guide rainwater out of the window. The design of the drainage trough should ensure smooth drainage and avoid water accumulation. They are usually made of aluminum alloy or plastic materials, which have good corrosion resistance and drainage performance.