steatite ceramic resistor case ceramic case for RX27 resistor

• Cement Power Resistors (Core Application) Serves as the core insulating shell for cement resistors, encapsulating internal resistance wires and quartz sand fillers, widely compatible with horizontal and vertical cement resistors of all specifications. The high-insulation alumina ceramic body ensures electrical safety under high voltage and high power load, and withstands continuous heat generation during resistor operation, covering power ratings from 10W to 10kW.
• Wirewound & High-Power Resistors Fits wirewound resistors, enamel resistors, load resistors and various power resistor products. It provides insulation protection and structural support as an outer shell, resists high-temperature shock and mechanical vibration during resistor operation, and extends the overall service life of resistors, making it a standard supporting component for industrial-grade power resistors.
• New Energy & EV Charging Industry Applied to bleeder resistors, current-limiting resistors and sampling resistors in EV charging piles, energy storage converters and photovoltaic inverters. Its temperature resistance and insulation performance meet the stringent working condition requirements of new energy equipment, adapting to outdoor and frequent on-off operation scenarios.
• Industrial Control & Power Supply Equipment Matched with power resistors in frequency converters, servo drives, switching power supplies and UPS systems. It provides stable insulation protection and heat dissipation support, adapts to complex electromagnetic environments and temperature fluctuations in industrial sites, and ensures long-term reliable operation of industrial control equipment.
• High-Voltage Power Transmission & Rail Transit Used for high-voltage resistors in high-voltage switchgears and rail transit traction systems. It has excellent insulation and voltage resistance as well as anti-aging performance, maintains stable electrical performance under high-voltage and strong electromagnetic environments, and meets the high reliability standards of electric power and rail transit industries.

Our cement resistor ceramic case is a high-performance insulating protective component fabricated from 95% high-purity alumina ceramic via automatic dry pressing, high-temperature sintering and precision finishing processes. It delivers outstanding electrical insulation, excellent high-temperature resistance, high mechanical strength, reliable thermal shock stability and strong aging resistance, providing dependable insulation and structural protection for internal resistance elements and filling materials.

Specially engineered for cement resistors, wirewound power resistors and high-power resistor products, this ceramic housing effectively isolates the internal resistance body from the external environment, prevents breakdown and leakage under high voltage and high load conditions, and maintains stable performance in harsh environments such as high temperature, humidity and vibration. We support full customization of dimensions, inner cavity structure and mounting holes to match different resistor power ratings and assembly requirements.

As a professional advanced ceramic manufacturer with full-process production capacity from powder preparation to finished product processing, we provide stable mass supply, consistent dimensional accuracy and cost-effective solutions for global resistor manufacturers, new energy enterprises and industrial control component suppliers.

Changsha Zhongci New Material Technology Co., Ltd. is a professional manufacturer focused on thermal field consumables for lithiumbattery production. We dedicate ourselves to supporting the high-temperature sintering and graphitization processes of lithium batterycathode and anode materials, delivering high-reliability kiln furniture solutions for the global new energy battery industry.

• Corundum-mullite and cordierite-mullite saggers (mullite cordierite saggers), with an annual production capacity of 4 million units
• Graphite saggers, with an annual production capacity of 600,000 units

We develop application-specific saggers tailored for a wide range of battery material systems, including ternary cathode materials (NCM/NCA), sodium-ion battery materials, lithium cobalt oxide (LCO), lithium manganate (LMO) and lithium iron phosphate (LFP). These products serve as critical consumable kiln furniture throughout the cathode material sintering and anode material graphitization processes.

Leveraging our proprietary core compression molding technology, our graphite saggers feature outstanding flexural and compressive strength. Compared with traditional assembled or solid-machined graphite saggers, our solutions deliver superior performance in production output, cost efficiency, manufacturing yield and quality consistency, earning wide recognition across the lithium battery industry.

We maintain close strategic partnerships with leading enterprises across the lithium battery industrial chain, covering top-tier cathode material manufacturers and power battery giants. 70% of our sales revenue comes from industry leaders.

Our core partners include CTAL, BYD, BASF Shanshan, Wanhua Chemical and Huayou Cobalt. In 2023, we were honored with the "Best Quality Supplier" award by Huayou Cobalt, a testament to our stable product quality and reliable supply capability.

with our partners.

Our production bases cover a total area of 68,000 square meters, with a workforce of over 300 employees. The company has maintained annual revenue exceeding RMB 250 million for three consecutive years.