CAST-IN HEATERS
Brand: Alfa Heaters, Product Code: Standard, Availability: In Stock
Description:
Alfa Heaters specializes in manufacturing cast-in heaters, engineered for efficient heating of solids or for applications requiring indirect heat transfer. These heaters feature electrical resistances embedded within blocks of high thermal conductivity metals such as aluminum, brass, bronze, or cupronickel, ensuring uniform heat distribution and reliable performance.
Widely used across industries such as plastics, packaging, food processing, and rubber molding, cast-in heaters are ideal for applications involving extruded dies, sheaths, heating plates, or press molds. Their rugged build ensures high resistance to corrosion, vibration, and harsh environments. Gravity casting technology guarantees material homogeneity, resulting in superior heat transfer and longer heater life.
These heaters are capable of operating at process temperatures up to 400°C (aluminum) and 650°C to 750°C (cupronickel). They can also be customized with cooling circuits for air or water cooling, offering greater control and efficiency in complex industrial processes.
Applications:
Heating plates for molding presses
Extruded die and sheath heating
Sealing in automated packaging lines
Homogeneous heating for rubber curing and aerated concrete
Food and plastic processing equipment
Key Features:
Indirect heating protects resistance elements from direct contact
Manufactured from durable materials: aluminum, brass, bronze, or cupronickel
Excellent corrosion resistance
Process temperature tolerance: up to 750°C
Gravity molded for material homogeneity
Custom cooling circuits (air/water) for process optimization
High mechanical strength to withstand impacts and vibration
Operating Conditions:
Temperature range: –60°C to +80°C
Suitable for onshore, offshore, and hazardous (ATEX/IECEx) environments
Compatible with NEC 505 standards for safe industrial use
Cast-in heaters from Alfa Heaters offer durable, high-performance solutions for industrial heating challenges. Let us tailor a heating solution that meets your exact process requirements.
Would you like FAQs added for this product as well?
Frequently Asked Questions
A cast-in heater is an electric heating device where resistance wires are embedded in a solid metal block (typically aluminum, brass, bronze, or cupronickel) to provide uniform, indirect heating for industrial applications.
They are widely used in the plastics, food processing, packaging, rubber molding, and aerated concrete industries for press heating, extrusion dies, and packaging sealers.
Aluminum cast heaters: up to +400°C
Cupronickel alloy heaters: up to +750°C
Yes, Alfa Heaters can customize heaters in terms of size, shape, metal type, wattage, and additional features like built-in cooling circuits (air or water-based).
Yes. Cast-in heaters can be equipped with water or air cooling circuits for optimized temperature control during industrial processes.
They offer excellent heat transfer, high corrosion resistance, long lifespan, and can operate efficiently in extreme environments. They also support custom cooling options and indirect heating that protects internal components.
Heaters can be manufactured in various sizes and wattages depending on the application. Maximum weight can go up to 400 kg for aluminum and 300 kg for cupronickel.
Yes, these heaters are designed to operate safely in ATEX/IECEx classified zones and comply with NEC 505 standards.
They are generally bolted or mounted onto machinery and require electrical connections based on custom specifications.
You can provide your specific requirements—dimensions, material, wattage, voltage, and cooling needs—through Alfa Heaters' ordering form or by contacting their technical team.