Bobbin & Pipe Heater

Bobbin & Pipe Heaters represent advanced industrial heating technology specifically engineered for efficient indirect heating of fluids, gases, and semi-solid materials in demanding industrial applications. These sophisticated heating elements utilize premium high-temperature refractory ceramic insulators available in various diameters and lengths, providing exceptional thermal stability and electrical insulation properties. The precision-engineered ceramic bobbin cores support high-quality NiCr or FeCrAl resistance wire coils, ensuring optimal heat transfer characteristics and long-term operational reliability in diverse industrial environments.

Operate up to 800 °C
Standard and custom bobbin diameters
100% immersion heat transfer efficiency

Technical Specifications

Temperature Range	Up to 800°C (1472°F) continuous operation
Heating Element Material	FeCrAl, NiCr 80/20, NiCr 70/30 (premium alloys)
Ceramic Bobbin Sizes	Ø 25, 30, 36, 42, 45, 57, 93 mm (custom available)
Watt Density Range	1–10 W/cm² (optimized for application)
Power Rating	500W to 50kW (custom ratings available)
Voltage Options	110V, 230V, 415V AC (custom voltages available)
Immersion Tube Material	SS316, Incoloy, Titanium, Cast Alloys
Tube Wall Thickness	1.5–3 mm (application dependent)
Tube Length Range	300mm to 3000mm (custom lengths available)
Terminal Box Rating	MS IP54 standard, IP66 optional
Control Integration	Thermocouple, RTD, Thermostat options
Cold Resistance Tolerance	≤3%
Mounting Options	Flange, threaded, clamp-type configurations
Service Life	8,000 to 12,000+ hours typical operation

Construction

Refractory Ceramic Insulator: High-purity ceramic bobbin cores available in diameters from 25 mm to 93 mm (custom sizes available) providing exceptional electrical insulation, thermal stability, and precise wire support.
Resistance Wire Element: Premium FeCrAl or NiCr alloy resistance wire precision-wound on ceramic bobbins for uniform watt density (1–10 W/cm²), optimal heat generation, and long-term reliability.
Protective Immersion Tube: Premium-grade titanium, stainless steel SS316, Incoloy, or cast-alloy protective tubes (1.5–3 mm wall thickness, 300–3000 mm length) providing corrosion resistance and mechanical protection.
Weather-Resistant Terminal Box: Robust MS construction with IP54 or IP66 rating featuring ceramic terminal blocks and cable glands for secure electrical connections and environmental protection.
Temperature Sensor Assembly: Optional stainless-steel thermowell with integrated PT100/RTD sensors or thermocouples (J, K, T-type) for accurate temperature feedback and process control.
Mounting and Support System: Precision-engineered mounting flanges, threaded connections, and support brackets ensuring secure installation, proper alignment, and easy maintenance access.

Key Features

Versatile sheathed and unsheathed design configurations
Custom lengths, diameters, and power ratings available
Low-pollution, environmentally friendly operation
Simple installation and maintenance procedures
Corrosion and chemical resistant alloy construction
100% immersion heat transfer efficiency
Precise temperature control with integrated sensor options
Robust ceramic construction for extreme temperature stability
Multiple mounting and installation configurations
Energy-efficient operation reducing operational costs

Applications

Indirect heating of fluids, oils, and industrial chemicals
Heating semi-solids including wax, fats, and bitumen
Process gas preheating in protective tube systems
Laboratory and analytical instrumentation heating
Chemical processing and reaction vessel heating
Pharmaceutical manufacturing and sterilization
Food processing and commercial kitchen equipment
HVAC systems and air handling unit heating
Galvanizing baths and metal treatment processes
Plating tanks and electrochemical applications