Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.
Our production line capa is 150 ton per day, around 50000 ton per year, and product include rock wool board, rock wool blanket, rock wool lamella, rock wool cube for agriculture industry, and our own brand are: Dong Wu Tian Zi, and Liluan Technology. We also have many Invention patents to keep our competitive during the market, and also new products.
Rock wool large board, as a specialized rock wool for metal faced sandwich board, is widely used in sandwich board rock wool core material,decorative integrated board cotton core material, etc. After being cut and flipped,it has high tensile and compress -ion resistance, At the same time, it has the properties of thermal insulation, fire prevention, sound absorption and noise reduction, etc., which plays a decisive role in improving the overall quality of the color steel sandwich board. With the development of the color steel industry, product requirements are also constantly improving to ensure that product performance meets and exceeds industry standards.
| Product model |
LL-HL-80 |
LL-HL-100 |
LL-HL-120 |
Unit |
Standard |
| Compressive strength |
≥40 |
≥60 |
≥80 |
KPa |
GB/T13480 |
| Tensile strength |
≥100 |
≥150 |
≥200 |
kPa |
GB/T30804 |
| The average diameter of fibers |
≤5 |
μm |
GB/T5480 |
| Shot content |
≤4 |
% |
GB/T5480 |
| Thermal conductivity(25ºC) |
≤0.043 |
W/(m·k) |
GB/T30802 |
| Combustion performance |
Class A |
--- |
GB8624-2012 |
| Acidity coefficient |
≥1.8 |
--- |
GB/T 5480 |
| Hydrophobic rate |
≥99 % |
% |
GB/T 10299 |
| Mass moisture absorption rate |
≤1.0 |
% |
GB/T 5480 |
| Water absorption(Partial Immersion) Short term(24h) |
≤0.5 |
kg/m2 |
GB/T 30805 |
| Noise reduction coefficient (NRC) |
≥0.6 |
--- |
GB/T18696.1 |
| Dimensional stability |
≤1.0 % |
% |
GB/T 30806 |
| Melting temperature |
≥1000 |
ºC |
--- |
| Thickness tolerance |
±1 |
mm |
GB/T5480 |
| Planeness tolerance |
≤2 |
mm |
GB/T25975-2018 |
Standard Specifications
| Product model |
LL-HW-80 |
LL-HW-100 |
LL-HW-120 |
| Density,KG/m³ |
≥80 |
≥100 |
≥120 |
| Length, mm |
1200-2400 |
| Width, mm |
30-150 |
| Thickness, mm |
30~150 |
Advantages
1.Rockwool is made of natural rock and is a Class A non-combustible fireproof material. Its melting temperature is over 1000ºC,
which can effectively slow down the spread of fire.
2.The thermal conductivity is low and the thermal insulation effect is significant.
3.Greatly reducing the reflection and propagation of sound waves and providing a beneficial environment without interference for work and life.
4.The open porous fiber structure makes rockwool have excellent air permeability and moisture-drying function, which allows
water vapor to pass freely, effectively reducing condensation and building mildew.
5.The rock wool for external wall insulation, high-strength rock wool board for roofs and composite board with rock wool have high
tensile strength and compression strength, which can effectively resist the alternating effects of positive and negative wind
pressures and have strong impact resistance.
6.Rock wool is frost-resistant, freeze-thaw resistant, and UV-resistant. It does not produce thermal expansion andcontraction due
to temperature differences in the four seasons. It can be used in extreme climates without being affected by other combined
materials.
7.Water-repellent and moisture proof.
8.The energy saved by rock wool in use is more than 100 times the energy consumed in its production, transportation and
recycling.
9.Safe and environmental protection.
10.Easy to carry and cut. It can be completed with a scissors.
Q: Are you a manufacturer or a trading company ?
A: We are a manufacturer founded in 2009, annual production capacity of 50,000 tons.
Q: Can you accept neutral packing & OEM ?
A: Normally, our packing is vacuum bag with "DongWuTianZi" logo , but we can accept the neutral packing and OEM. However, custom should pay the OEM packing charge.
Q: Can you provide the sample for free ?
A: We provide some samples for free, but the express charge should be bore by customer.
Q: What's the lead time?
A: 7-15 days after receipt of advanced payment
Q: What's the payment term?
A: 30% advanced payment and 70% paid prior to load by TT.
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