Fan Guard provides a physical barrier around a fan blade to prevent accidental contact with fingers, hands and other objects. The guards are typically constructed of metal wire and are available in a variety of sizes and layouts. They may be plated or coated for protection against wear, corrosion, or aesthetics. Some guards include filter media designed to reduce the passage of dust particles and contaminants through fans into enclosures. They may also be assembled with a thermostat to control when the fan should turn on and off, keeping heat-sensitive equipment cool without overusing it.
Some types of fan guards are manufactured from a variety of plastics, while others are made from welded wire mesh, stainless steel, or other metal materials. They may be resistant or arc-welded into a variety of shapes, including circular and rectangular with flat or bowed sides. They are often provided with mounting holes or brackets and can be fastened to a fan or motor in various ways. The wire material is usually powder or chrome-plated to protect against rust and corrosion, and some guards are anodized, polished, or painted for cosmetic purposes.
Chaotuo produces custom or standard shapes, sizes and layouts of fan guards to suit specific applications or industry requirements. They may also be manufactured from plastics, stainless steel, or other materials that provide resistance to corrosion and other environmental factors. In general, the designs are intended to maximize airflow and minimize noise, and some feature filters that trap dust or debris and keep it from passing through a fan into an enclosure. These are commonly used for industrial fans and ceiling or wall-mounted appliances that require high-volume, quiet operation.
Other types of fan guards are designed to be installed inside computers, or on other pieces of electrical and mechanical equipment. They are intended to protect fans from accidental contact with cables or other close objects, particularly in tight spaces inside a computer chassis. These are particularly useful for protecting fans mounted near power supply cables in Small Form Factor (SFF) computer cases, as well as other tight space areas where fans are usually located.
For industrial and commercial applications, fan guards are often fabricated from a more durable material, such as aluminum or stainless steel, for a longer lifecycle. They are also sometimes made from plastic for use in areas where the risk of damage is higher, such as chemical-resistant varieties that are frequently found in laboratories or other areas where chemicals might be used.
Some industrial and other fan guards are supplied as kits that include a fan, guard, and power cord. They are mainly used for cooling heat-sensitive electronic equipment and may be powered by either AC or DC current. Depending on the design, these kits are available in different voltages and are rated for use with up to 250 volts. Some are also rated for UL 94V-0. They are often used in conjunction with a filter to reduce the passage of EMI (electromagnetic interference) or RFI (radio frequency interference), which can be produced by certain electronics.