Industrial electric heaters are essential for many production processes. As a professional electric heater manufacturer, our factory designs and produces high-performance air duct electric heaters, flange heaters, immersion heaters, and custom industrial heating systems. With advanced machinery, strict quality control, and experienced engineers, we offer durable heaters with accurate temperature control, high thermal efficiency, and long service life. Every product is fully tested before shipping to ensure stable operation.

The air duct electric heater is one of our core products. It is specially designed to heat air flowing through ducts in HVAC systems, drying rooms, spray booths, cleanrooms, and industrial processes. The heater uses finned tubular electric heating elements to improve heat exchange efficiency. A steel or stainless steel casing encloses the elements, while insulation reduces heat loss. It can be installed into circular or rectangular ducts, making retrofitting easy.

We offer a comprehensive range of industrial electric heaters. Flange-type heaters are ideal for tanks and pressure vessels. Threaded immersion heaters suit containers and oil tanks. Air duct heaters are optimized for forced air convection. Tubular and finned heating elements can be made of stainless steel, Incoloy, or other high-temperature alloys. Customers can also request multi-zone heating, special watt density, and custom mounting frames.

The heating core uses high-quality nickel-chromium alloy wire wound and packed tightly with magnesium oxide powder. This construction provides excellent electrical insulation and heat transfer. The outer metal tube is compressed to increase density and maximize thermal conduction. For air heating, spiral finned tubes enlarge the contact area and promote heat dissipation. The element surface temperature remains stable even when air velocity changes, preventing hot spots and extending service life.

Temperature control is critical for safe and efficient heating. Our air duct electric heaters can be supplied with a control cabinet including PID controllers, SCR power regulators, contactors, circuit breakers, and overheat protection. A thermocouple at the air outlet detects the temperature. The controller automatically adjusts power to maintain the temperature. An airflow interlock switch prevents the heater from starting when the fan is off. This feature avoids overheating and protects the production line.

Safety is a critical part of our heater design. Each unit can include over-temperature limit switches, thermal fuses, and moisture-resistant terminal boxes. Explosion-proof air duct heaters are also available with Ex d or Ex e certification. The terminal enclosure is sealed and made of die-cast aluminum or steel. All electrical connections are protected against dust and water. Before delivery, every heater passes high-voltage, insulation resistance, and grounding continuity tests.

Industrial electric heaters from our factory are used in HVAC systems, food drying, grain drying, pharmaceutical production, chemical processing, tobacco curing, packaging machines, plastic molding, and surface treatment. Electric heating produces no exhaust gas, smoke, or noise, making it an environmentally friendly solution. It is especially suitable for cleanrooms and locations where gas or oil heating is impractical. The user can obtain consistent heat quickly and control it precisely.

When selecting an air duct electric heater, users should confirm voltage, frequency, power, air flow rate, inlet/outlet temperatures, duct size, and installation position. These parameters affect the heater design and price. Our engineering team can calculate the heating capacity accurately and provide CAD drawings and proposals. As a factory-direct supplier, we offer competitive electric heater prices. Send us your inquiry for air duct electric heater price, and our sales team will reply within 24 hours.