Ceramic Body

New Energy Fuse Ceramic Body
The high-voltage safety of new energy vehicles and energy storage systems depends on a stable fuse ceramic matrix. Apollo is manufactured from 95% high-purity alumina ceramic (Al₂O₃≥95%), which offers excellent insulation, high-temperature stability, and arc resistance.
1.1 Core Advantages

Material Properties: Flexural strength ≥300 MPa, volume resistivity ≥10¹⁴Ω·cm, and long-term operating temperature up to 1200°C.

Structural Design: Precision molded, dimensional tolerance ±0.05mm, compatible with DC1000V-1500V new energy fuses, with a breaking capacity ≥100kA.

Safety Certifications: UL248-19, IEC60269 international standards certified, with excellent arc erosion resistance.

1.2 Precision Manufacturing Process

Raw Material Pretreatment: Imported high-purity alumina powder (D50 ≤ 1μm) is used, and nano-dispersion technology is used to prevent sintering porosity.

Molding Process: Dry pressing or cold isostatic pressing, density consistency ≥ 99%, mold accuracy ±0.02mm.

High-Temperature Sintering: Continuous sintering in a 1650°C atmosphere-protected kiln ensures dense, crack-free crystals.

CNC Finishing: Aperture tolerance ±0.01mm, flatness ≤0.005mm.

Full Inspection and Testing: X-ray inspection + withstand voltage test (AC 50kV/1min), pass rate ≥ 99.8%.

1.3 Typical Parameters

1.4 Application Scenarios

New Energy Vehicle High-Voltage Battery Protection (800V Platform)

Photovoltaic Energy Storage System DC1500V Fuse Carrier

Fast Charging Module and Industrial Inverter Overcurrent Protection

NH Fuse Ceramic Body

Designed specifically for medium and low voltage power systems, the NH fuse ceramic body utilizes high-purity alumina and quartz sand filling arc extinguishing technology, delivering both high strength and high interrupting performance.

2.1 Core Advantages

Arc-Extinguishing Performance: Filled with high-purity quartz sand (SiO₂ ≥ 99.5%), particle size 100–200 μm, breaking time ≤ 10 ms;

Melt Matching: Copper-tin alloy solder melt (melting point 170°C), short-circuit breaking capacity up to 120 kA (400 V AC);

Environmental Reliability: Passed 500-hour salt spray test, no cracks after temperature cycling (-40°C to +125°C).

2.2 Technical Parameters

2.3 Application Scenarios

Photovoltaic Inverter and Wind Power Converter Protection (DC 1500V System)

UPS Power Supply and Industrial Equipment Overcurrent Protection (160A~630A)

Rail Transit Traction System (Compliant with EN45545 Fire Protection Standard)

Power Switchgear (≤35kV) Compliant with GB/T15166.5

Resistor Ceramic Body

Apollo offers both round and spiral tube structures to meet the needs of high precision and high power loads. Using low-alkali alumina ceramic, the insulation resistance is ≥10¹²Ω and the high-temperature dielectric loss is ≤0.002 (1MHz).

Process Features

Extrusion + High-Temperature Sintering (1330°C ±10°C), Surface Roughness Ra ≤ 0.8μm;

CNC + Laser Cutting Finishing, Aperture Tolerance ±0.01mm;

High-Voltage Test: AC3kV/1min, Full Inspection.

Application Scenarios

Non-inductive damping resistors for high-frequency circuits (≥50kHz);

High-voltage power loads and IGBT snubber circuits;

Corrosion resistance in high-temperature environments in the chemical and metallurgical industries.

3.1 Materials and Parameters

Xiamen Apollo boasts a fully automated, fully automated system, encompassing everything from ceramic raw materials to molds, sintering, machining, and testing.
The group's core technical team, drawn from Xiamen Hongfa Group, boasts over 30 years of experience in the relay and electrical industry.

1. Core Strengths

Group Management and Sufficient Production Capacity: Annual production capacity reaches millions of ceramic bodies, enabling high-volume supply.

Quick Response: Samples can be delivered within 1–2 days, with batch delivery within 15–20 days.

Deep Industry Experience: Annual output value of the new energy business exceeds RMB 120 million.

Strong Technical Extension Capabilities: Proven expertise in metal cold heading, stamping, welding, CNC machining, and electroplating, enabling customized integrated ceramic and metal components.

2. Full-Process Production Process

Ceramic isostatic pressing, tunnel kiln high-temperature sintering, and CNC precision machining

Metal welding, vacuum welding, high-frequency welding, and laser cutting

Plating surface treatment (gold, silver, nickel, copper)

Automated testing and finished product cleaning and packaging

3. Quality and Certification

Our products are certified by international standards such as ISO9001:2015, IATF16949, RoHS, and REACH. Each ceramic body undergoes:

X-ray inspection

High-voltage withstand voltage test

Flexural strength test

Salt spray and thermal cycling tests

The Ceramic Body fuse series utilizes high-purity alumina as its core material, integrating precision molding and high-temperature sintering technologies to provide safe and reliable high-insulation solutions for new energy and industrial electrical systems.

Xiamen Apollo will continue to help global customers achieve more efficient, safer, and more sustainable electrical connection systems through technological innovation and integrated manufacturing.
 

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