Precision Heat Where It Matters Most
Caldor Heat ceramic band heaters deliver uniform, rapid heat transfer for extruder barrels, nozzles, and cylindrical industrial components — engineered for continuous operation and reliable performance in demanding industrial applications.
Request a quote!Ceramic Band Heaters
≤7.5
W/cm² specific power density
Request a custom-engineered quote
Our engineering team reviews every enquiry and provides dimensioned confirmation drawings with each quotation. Provide the parameters below and we will respond within one business day.
650°C
Max. operating temperature (custom)
440 V
Single · three-phase · Δ / Y
IP 40
Protection class · 1000 VAC rated
±10%
Power tolerance
4
Cladding material options
Ceramic Band Heater Manufacturing
Performance, Temperature & Applications
Caldor Heat Engineering designs and manufactures ceramic band heaters with precision engineering and rigorous quality control to support demanding industrial heating applications. These heaters feature a ceramic insulated core and rugged metal cladding, producing superior thermal transfer and longevity under continuous use.
Our ceramic band heaters are specifically engineered to deliver uniform heat distribution and rapid thermal response — qualities essential for processes requiring consistent and stable temperature control. Thanks to the ceramic insulation, these elements can withstand elevated operating temperatures typically up to 650°C in standard configurations, with custom options available to meet higher thermal requirements.
Ideal applications include cylindrical components such as barrels, pipes, and nozzles, where targeted heating is crucial for efficiency and product quality. Ceramic band heaters are widely used in industries such as plastics processing, packaging, and other high-heat industrial environments.
Key Features
High Operating Temperature Capacity: Designed to operate reliably at elevated temperatures, ensuring stable heating performance for demanding processes.
- Rapid thermal response: Low thermal mass means fast heat-up from cold start and immediate response to setpoint changes — critical for tight process windows and frequent temperature cycling applications.
Uniform Heat Transfer: Ceramic insulation promotes even thermal transfer across the full heater surface, eliminating hot spots and ensuring stable, consistent temperatures throughout the process cycle.
Robust Construction: Available in four cladding options — mild steel, stainless steel, aluminized steel, and galvanized steel — each matched to the corrosion resistance and temperature demands of the target environment.
- Fully customizable geometry: Heaters are manufactured to exact customer dimensions — diameter, width, watt density, connection position, and cut-out requirements — ensuring optimal fit for both standard and non-standard machinery.
Integration Options: Optional cut-outs, thermocouple bridges, and reinforced mounting configurations for seamless installation.
Proven across demanding industries
Caldor ceramic band heaters are actively deployed wherever cylindrical components require reliable, controllable, and energy-efficient heat.
- Plastic injection molding : Maintain precise melt temperatures on extruder barrels, injection cylinders, and nozzle zones across high-cycle production lines.
- Extrusion lines : Consistent barrel and die heating for uniform polymer flow, reduced scrap rates, and stable dimensional output across profile, sheet, and film extrusion.
- Packaging machinery : Reliable heat for sealing jaws, forming heads, and hot-melt systems in high-speed packaging and form-fill-seal equipment.
- Food processing equipment : Stainless-clad heaters rated for food-grade environments — suitable for filling nozzles, jacketed vessels, and temperature-controlled conveying systems.
- Chemical & process engineering : High-temperature reactors, heat exchangers, and pipe-trace heating in chemical processing and hazardous area installations.
- Custom industrial systems : Bespoke heating profiles for specialty machinery, laboratory equipment, and OEM applications where standard products do not meet the thermal or mechanical brief.
Why Choose Caldor’s Ceramic Band Heaters
Engineering Excellence:
Designed and manufactured to the highest industrial standards with strict quality oversight.
Thermal Efficiency:
Superior ceramic insulation enhances energy transfer, reducing heat loss and operational costs.
Custom Solutions:
We tailor each heater to your dimensions, power requirements, and installation needs — ensuring the best fit for your process.
Durability in Harsh Conditions:
Built to endure continuous operation in high-temperature, industrial environments with minimal maintenance.
Trusted Industrial Partner:
Backed by Caldor’s deep experience in industrial heating systems and commitment to reliable delivery and support.
Full performance data
All parameters are quoted for standard configurations. Higher temperature, power, and voltage ratings are achievable in custom-engineered designs — contact our engineering team for application-specific data.
| Category | Parameter | Specification |
|---|---|---|
| Mechanical | Inner diameter | ≥ Ø 60 mm (custom below on request) |
| Width | ≥ 21 mm | |
| Wall thickness | ≈ 12 mm | |
| Cladding materials | Mild steel · Stainless steel · Aluminized steel · Galvanized steel | |
| Thermal | Standard max. operating temperature | 450°C |
| Custom max. operating temperature | up to 650°C | |
| Specific power density | up to 7.5 W/cm² | |
| Power tolerance | ±10% | |
| Electrical | Voltage | up to 440 V — single-phase, three-phase (Delta / Star) |
| High-voltage strength | 1000 VAC | |
| Insulation resistance | ≥ 1 MΩ at 500 VDC (cold state) | |
| Protection class | IP 40 | |
Connection cable (standard) | Conductor material | Nickel conductor |
| Insulation | Glass-silk braided with steel protective sheath | |
| Exit directions | Axial · Radial · Tangential | |
| Temperature sensing (optional) | Thermocouple types | Type J (Fe-CuNi) · Type K (Ni-CrNi) |
| Resistance thermometer | PT 100 | |
| Electrical isolation | Potential-bound or potential-free | |
| Sensor thread sizes | M12 · M12×1 · M14×1.5 · R3/8" |
Order Information
Provide the following details so we can tailor the right solution for you:
Desired electrical power (W) and supply voltage (V)
Diameter (mm) and width (mm) of the band
Sensor cavity dimensions (if required)
Position of power connection (angle relative to the closure)
Connector type or cable specification and length
A ceramic band heater is an industrial heating device specifically designed to heat cylindrical components such as pipes, barrels, extruder cylinders, and nozzles. It is constructed around a flexible ceramic insulation core, which is enclosed within a robust metal sheath, typically manufactured from steel or stainless steel. Heat is generated by passing an electric current through the heating element, causing the ceramic insulation to heat up and efficiently transfer thermal energy to the surface of the component being heated.
Ceramic band heaters are widely used across a broad range of industrial processes, including plastic injection molding, extrusion, packaging machinery, and food processing equipment. They are valued for their high thermal efficiency, excellent heat transfer characteristics, and ability to maintain stable, uniform temperatures over extended operating periods. Their design allows them to withstand high operating temperatures and perform reliably in harsh industrial environments, while remaining relatively easy to install and service.
One of the key advantages of ceramic band heaters is their low thermal mass, which enables rapid heat-up times and quick response to temperature adjustments. This results in improved process control and reduced energy consumption. In addition, ceramic band heaters are highly versatile and customizable, allowing them to be manufactured to fit standard or irregular shapes and specific application requirements. With a long service life and minimal maintenance needs, they represent a dependable and cost-effective heating solution for demanding industrial applications.
Request a custom-engineered quote Ceramic band heaters
Our engineering team reviews every enquiry and provides dimensioned confirmation drawings with each quotation. Provide the parameters below and we will respond within one business day
- Desired electrical power (W) and supply voltage (V)
- Inner diameter (mm) and heater width (mm)
- Required operating temperature (°C)
- Preferred cladding material and connection type
- Cable exit direction and cable length (mm)
- Temperature sensor type and thread size (if required)
- Cut-out or recess drawing (.pdf / .dxf / .step) if applicable
- Quantity and required delivery lead time