Need durable heating for industrial barrels and pipes? NBRAM’s mica band heater wrap around surfaces with precision, delivering fast, uniform heat for plastics processing, chemical reactors, and extrusion systems. Withstand vibrations and high pressures thanks to rugged stainless steel cladding and interlocking mica insulation. Custom diameters (25mm–600mm), voltages, and thermocouple integrations available. As a trusted OEM supplier, NBRAM ensures rapid delivery and 24/7 technical support. Simplify your procurement—request a free heating solution design today!
NBRAM’s mica band heater excel in plastic injection molding machines, where they maintain ±2°C temperature stability on barrels to ensure polymer flow consistency. The crisscrossed mica layers provide double insulation, preventing energy loss while resisting moisture and chemical corrosion—critical in humid environments like rubber vulcanization workshops. For extrusion lines, we add optional cooling fins to dissipate excess heat, extending lifespan by 30%. OEM clients often choose our dual-zone designs with separate circuits for precise top/bottom heating control. These heaters also serve high-temperature packaging machinery, where quick installation (via spring-loaded hinges) minimizes downtime during maintenance.
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Diameter Range |
25mm to 600mm (custom sizes within 1mm tolerance) |
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Power Density |
3–8 W/cm² (standard), up to 12 W/cm² for high-temp model |
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Voltage |
110V/220V/380V AC, or DC options |
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Max Temperature |
600°C continuous operation |
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Band Width |
30mm–150mm (wider for large barrels) |
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Insulation Resistance |
≥100 MΩ at 500V DC |
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Terminal Types |
High-temp fiberglass leads, stainless steel junction boxes |
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Certifications |
CE, RoHS, ISO 9001, custom compliance for ATEX zones |
Every NBRAM mica band heater begins with hand-selected Muscovite mica sheets—chosen for superior dielectric strength (withstands 2500V AC)—which are precision-cut into crescent shapes using ultrasonic knives to prevent micro-fractures. Heating wires made of Cr20Ni80 alloy are woven into a zigzag pattern on ceramic spools, ensuring tension consistency across all loops. During assembly, technicians layer mica strips in a cross-hatch formation around the core, creating air pockets that enhance thermal efficiency. The outer shell is formed from 304 stainless steel, cold-rolled to 0.8mm thickness for optimal heat transfer, then spot-welded with reinforced hinges and latches.
But what truly sets our process apart is the "barrel simulation" test: we mount each heater on a rotating steel cylinder and cycle between 50°C and 450°C for 72 hours, monitoring for any insulation degradation. A client in Ningbo reported 18 months of uninterrupted operation in their PET extrusion line—50% longer than previous suppliers. We also offer customizations like lead wire exits at specific angles to avoid machinery interference, or copper-plated terminals for corrosion resistance in chemical plants. From food-grade coatings for packaging machines to explosion-proof designs for oil refineries, NBRAM’s craftsmanship ensures your processes run hotter, longer, and safer.
