China HDPE Block White PE Polyethylene - Safe, Non-toxic, and Recyclable Building Blocks from Trusted Suppliers and Factory
Parameter of HDPE Block
| Parameter Items | Specifications/Description |
|---|---|
| Material | HDPE (High Density Polyethylene), through the food grade safety certification |
| Color | Red is the main, other colors can be customized |
| Size | Square: 5.5cm x 5.5cm x 5.5cm; Rectangle: 9.5cm x 19cm |
| Applicable age | Children over 2 years old |
| Density | 0.941~0.965 g/cm³ |
| Temperature range | -70℃ to +130℃ |
| Surface Finish | Rounded corners, smooth, no burrs, anti-scratch |
| Environmentally Friendly | Recyclable, RoHS compliant |
Production Process of HDPE Block
The production process of HDPE cubes is mainly divided into the following steps:
Raw material pretreatment: select HDPE pellets, dry and remove impurities to ensure material purity.
Melt Extrusion: HDPE pellets are heated to 220~260℃ by extruder, and then injected into precision molds for molding after melting.
Cooling and Shaping: Adopt water cooling or air cooling system to cool the product quickly to ensure the structural stability and dimensional accuracy.
Post-processing: cut into square shape, surface polishing to eliminate burrs.
Quality control and packaging: pass the drop test, chemical safety test, etc., and then packaged and shipped out after passing the test.
Advantages of HDPE Block
Safety: non-toxic and odorless, rounded corners to avoid children's scratches, in line with the safety standards for children's toys.
Durability: wear-resistant, strong impact resistance, long service life, suitable for repeated assembly.
Environmental protection: recyclable, low energy consumption in the production process, in line with the requirements of sustainable development.
Easy processing: support injection molding, extrusion and other processes, can be customized complex shapes.
Chemical stability: acid and alkali resistant, corrosion resistant, suitable for chemical industry, sewage treatment and other scenarios.
Application of HDPE Block
1. Children's education
Educational toys: Cultivate hands-on ability and creativity, such as the red cube assembled blocks of Sheng Yu Technology.
Teaching model: used for structure building demonstration in STEM education.
2. Construction
Waterproof layer material: used for seepage control in basements and roofs.
Floor mats/soundproof boards: lightweight and wear-resistant, suitable for stadiums and soundproofing projects.
3. Environmental Engineering
Sewage treatment: to make storage tanks, pipeline lining, strong corrosion resistance.
Landfill: used as impermeable isolation layer to prevent the spread of pollutants.
4. Agriculture and water conservancy
Irrigation system: HDPE pipes and fittings with excellent weather resistance.
Greenhouse structure: UV resistance, prolong service life.
5. Industrial Manufacturing
Equipment guards: abrasion and impact resistance to protect mechanical parts.
Logistics packaging: customized pallets and containers to reduce transportation loss.
Frequently Asked Questions
What is the material and safety standard of the HDPE Block?
The blocks are made of high-quality High-Density Polyethylene (HDPE) that has passed food-grade safety certification. They are non-toxic, odorless, RoHS compliant, and feature rounded corners to prevent scratching, making them safe for children over 2 years old.
What are the physical specifications and temperature limits of HDPE Blocks?
HDPE Blocks have a density range of 0.941 to 0.965 g/cm³ and can withstand temperatures from -70℃ up to +130℃. They are available in square sizes (5.5cm x 5.5cm x 5.5cm) and rectangular sizes (9.5cm x 19cm), primarily in red, with custom colors available.
How are HDPE Blocks manufactured?
The production process involves five major steps: raw material pretreatment, melt extrusion at 220~260℃, cooling and shaping via water/air systems, post-processing (cutting and deburring), and rigorous quality control testing (such as drop and chemical safety tests) before packaging.
What makes HDPE Blocks suitable for environmental and industrial engineering?
Due to their outstanding chemical stability, HDPE blocks are highly resistant to acids, alkalis, and corrosion. This makes them ideal for sewage treatment tanks, pipeline linings, and impermeable landfill isolation layers.
Are HDPE Blocks environmentally friendly and recyclable?
Yes, HDPE is a highly recyclable material. The production process involves low energy consumption, and the final products are fully recyclable and RoHS compliant, aligning with global sustainable development standards.