Products

Insulation blocks are available in Hengli, which require no mortar joints to produce sizes up to 610*500*100mm. These blocks give furnace designer more choices on specific area to reduce mortar joints and significant fuel & labor savings.
A large-scale machine shop at the factory is capable of supplying accurate machined shapes. Single brick tolerance is within +/-1mm while pre-assembled tolerance can be strict controlled according to drawings.
Hengli insulation blocks are divided into:
a. FJM23, FJM26, FJM28 grade according to ASTM standard;
b. High strength insulation blocks with CCS reach 10MPa

The Orifice Ring we produced also including the quality Zircon-Mullite (10-13% ZrO2 ;18-20% ZrO2 ).
As a daily work, we handle the testing of samples as following method:
Three vertical positions (top, middle and low) and five horizontal positions(right, mid-right, middle, mid-left and left), For each area, we can introduce a cloured tracer representing a glass defect as a 'heterogeneity in the glass structure'. High-resolution cameras record the behavior of the tracer. Results more than 150 trails were made covering all the above cases. to evaluate the performance of the patented rotor-tube we established a ranking from one to five as:
1. Sharp cord in the Orifice Ring.
2. Nearly sharp cord in the Orifice Ring.
3. Part of the tracer is mixed, part is nearly invisible cord in the Orifice Ring.

Hengli Corundum Bricks are made from high purity tabular alumina, fused alumina, sintered in high temperature shuttle kiln. The bricks possess characters of high density, high purity, low porosity, and good thermal shock resistance.
Hengli Corundum bricks can withstand corrosion attack in oxidizing atmospheres and highly reducing atmospheres. It can also withstand high temperature hydrogen attack.
Hengli Corundum Brick is available in standard brick sizes (straight, arches and wedges) as well as custom plates and shapes.

Sillimanite brick is a type of refractory brick primarily composed of the mineral sillimanite (Al2SiO5). It is known for its high resistance to thermal shock, high temperature stability, and chemical inertness, making it suitable for use in high-temperature industrial processes. Here are some key characteristics and uses of sillimanite bricks:

Hengli Bubble Alumina Bricks choose high purity bubble alumina as main raw material, high property micro powder as additive, organic material as temporary binder, sintered in high temperature shuttle kiln. The finished products possess large quantity of closed pore, have the characters of light weight & high temperature resistance, low thermal conductivity, high strength, tiny reheating linear change, good thermal shock resistance, good erosion resistance to erosive gas & melting slag.
Bubble Alumina Bricks can greatly improve the furnace heat efficiency, shorten production circle, lighten furnace weight and realize energy saving.

1.High alumina bricks are refractory bricks made primarily from alumina (Al2O3) and other materials, designed for high-temperature applications like furnaces, kilns, and reactors. 
2.Processing: bauxite is used as the main raw material, clinker is sorted by grading and sieved to remove iron, and is prepared by high temperature firing.
3. Manufacturing: Made by mixing raw materials (bauxite or other high-alumina minerals), shaping them into bricks, and firing them at high temperatures. The manufacturing process may include different additives and binders to achieve the desired properties.
4. High alumina bricks are chosen for their durability and efficiency in extreme environments, making them a crucial component in many high-temperature industrial applications.

Vibrating cast sillimanite blocks are advanced refractory materials used in glass furnaces. They are specifically designed to withstand the extreme temperatures and corrosive environments encountered in glass manufacturing. 

1. Tank Bottom Sillimanite Block (HL-A-60 TB) 
2. Sillimanite Rider Arch

Hengli high alumina insulating block is made from selected refractory material, extrude or casting to shape, sintered by high temperature natural gas tunnel kiln, saw & grinded by the advanced machines. The product enjoys the character of uniform structure, accurate dimension, high strength, low iron content, low thermal conductivity, good reheating linear change.

99 dense alumina forehearth channel blocks have the property of high purity, high density. This inventive product is the first choice to replace fused α-β blocks in forehearths. Dense alumina channel blocks are specialized ceramic components used in various industrial applications. Alumina (Al₂O₃) is known for its excellent mechanical strength, high thermal conductivity, and resistance to wear and corrosion. Here are some key characteristics and uses of dense alumina channel blocks:

Using high-power vibrating platform, adopts the high-quality refractory materials and vibration molding process method, the company produces furnace bottom fireclay blocks with excellent physical and chemical properties and appearance that have exceeded the national standards. The cold compressive strength and resistant ability to molten glass of the product is better than that of traditional casting process and ramming products. The products are especially suitable to build the bottom of furnace melting, cooling and working end, side wall of glass furnace.