Sandwich Panel Manufacturer

What is a Sandwich Panel?

Sandwich panel is a kind of composite material composed of three layers: the outer layer is metal material of various materials, the core is polyurethane, rock wool and other materials with the function of heat preservation and insulation. This “sandwich” structure not only reduces the weight of the building but also significantly improves heat preservation, sound insulation, and compression resistance.

Advantages of Sandwich Panel

Energy saving and high efficiency: The closed cell structure of the core material greatly reduces heat conduction, cold storage, and constant temperature workshop can reduce energy consumption by 30%-50%.

Rapid installation: Modular design supports on-site assembly, shortening the construction period by more than 50% compared with traditional building materials.

Durable: GI Sandwich Panel/PPGI Sandwich Panel is corrosion-resistant and UV-resistant, and the core material is moisture- and mold-resistant, which is suitable for high-humidity environments, with a lifespan of more than 30 years.

Versatility: Sandwich Pane surface can be customized in color and texture. In addition, the fire rating of the rock wool sandwich panel can reach Class A, which meets the needs of high-risk industries such as the chemical industry and the electric power industry.

Sandwich Panel Manufacturer – Wanzhi’s Core Competence

Wanzhi Group has coated steel production lines and a wide range of panel processing equipment to provide cost-effective sandwich panel material solutions and customized services for architectural, industrial, and other applications.

Quality control of raw materials

• Outer metal sheet: GI GL PPGI PPGL, thickness error ≤ 0.02mm to ensure flatness and durability.
• Core material performance: polyurethane density ≥40kg/m³, rock wool fire rating should be certified by GB/T 8624, in line with the EU REACH, RoHS standards.

Advanced production process

• Continuous production line: Fully automated equipment ensures that the core material is evenly filled without cavities or air bubbles.
• Precise cutting technology: laser cutting error ≤ 0.5mm to ensure the sealing of splicing seams.

Customized service capability

• Support non-standard size (maximum width 1250mm, unlimited length extension).
• Supports different material, color, and pattern customization.
• Provide samples
• Provide structure calculation and wind pressure test report.

Application Scenario of Sandwich Panel

Sandwich panels are characterized by light weight, high strength, high intensity, widely used in cold chain logistics, industrial plants, commercial buildings, agricultural facilities and other industries, different core materials, such as polyurethane, rock wool, glass wool, EPS, etc., can provide thermal insulation, sound insulation, fire prevention, moisture resistance, is one of the popular metal panel solutions for construction.

Typical applications

Cold storage walls, refrigerated truck door panels

Clean rooms, explosion-proof compartments

Shopping center facades, soundproof cinema halls

Insulated roofs of poultry houses, grain silos

How to Choose Quality Sandwich Panel Manufacturers?

Sandwich Panel manufacturers can provide quality assurance, customized service, wholesale price, variety of choices, and efficient after-sales service. Choosing a technologically advanced and well-serviced Sandwich Panel manufacturer not only ensures the safety and energy efficiency of the building but also creates long-term value for the project. When choosing a supplier, you can consider productivity, service, certificates, customer feedback, and so on.

• Verification of qualification and cases: Check the ISO 9001 quality management system, ISO 14001 environmental management system certification, and ask for past project cases.
• Site visit: Inspect production lines and test samples for performance.
• Compare cost and value: Beware of the low price trap (poor quality core materials can lead to insulation failure and repair costs up to three times the initial investment). Choose an integrated solution provider (offer one-stop shopping for panels + auxiliary materials (sealants, connectors) to save management costs.)

Metal Sandwich Panels have a service life of 25-30 years, and choosing a reliable Sandwich Panel Manufacturer is key to ensuring the quality, cost-effectiveness, and long-term performance of your project. Wanzhi Group has a wide range of products, professional customized services, and a flexible supply chain. Feel free to contact us for more Steel, Sandwich Panel, and expandable Prefabricated House product details!