hollow Alumina sphere is a new type of high-temperature heat insulation material, which is produced by smelting and blowing industrial alumina in an electric furnace, and the crystal form is a-Al2O3 microcrystal. Taking alumina hollow balls as the main body, it can be made into various shapes. The maximum operating temperature is 1800℃. The mechanical strength of the products is high, which is several times that of general light products, and the bulk density is only half of corundum products.

hollow Alumina sphere and its products are a kind of light-weight refractory material with high temperature resistance and excellent energy saving. hollow Alumina sphere is very stable in various atmospheres. Especially applied in high temperature kiln at 1800℃. Hollow spheres can be used as high-temperature, ultra-high-temperature insulation fillers, high-temperature refractory concrete lightweight aggregates, high-temperature castables, etc. Hollow ball brick can be used in high temperature energy saving (>30%) inverted flame kiln, shuttle kiln, molybdenum wire furnace, tungsten rod furnace, induction furnace, nitriding furnace, etc. For reducing the weight of the furnace body, transforming the structure, saving materials, and saving energy, obvious results will be achieved.

1. Materials as Insulation filler

2. Materials for refractory castable

3. Materials for alumina hollow ball bricks

1. Strong professional:

Our company has thirty years producing experience in refractory product. Our manager will supervise on a various refractory' s production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
2. Annual exports:
Now we have gained a global sales network reaching Taiwan, Russia, Mongolia, South Korea, Vietnam, Pakistan, Bulgaria, Finland, Greece, Spain, Congo, Angola, South Africa, and Maldives, Jordan and so on. The export figure is more than USD 4 million.
3. Production equipment:
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.
4. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester

Certificates