China Sandwich Panel Manufacturer

The toughness of metal wraps the heat-insulating core, and prefabricated craftsmanship builds an energy-saving barrier – the sandwich panels have millimeter-level precise thickness, supporting the economy and peace of mind of constant temperature.

Sandwich panel types

Sandwich Sheet/PUF Panels

Sandwich panels are high-performance composite panels consisting of two layers of high-strength metal panels and a thermal insulation core material in the middle. The metal panels are mostly made of galvanized steel or stainless steel, which have excellent impact resistance and corrosion resistance. The surface coating further enhances moisture resistance and chemical erosion resistance. Core materials such as polyurethane foam and polystyrene foam achieve high-efficiency thermal insulation with low thermal conductivity. This structure gives sandwich panels excellent thermal insulation, fire resistance, and sound insulation performance, while also having the advantages of being lightweight and easy to install.

Types of Sandwich Panels

Sandwich panels can be divided into EPS foam sandwich panels, rock wool sandwich panels, PIR sandwich panels and PU sandwich panels according to the material. EPS sandwich panels use polystyrene foam as the core material, which is light and cheap, and is often used in temporary buildings, but has weak fire resistance; rock wool sandwich panels use rock wool made of natural basalt, which has excellent fire resistance, sound insulation and thermal insulation properties, and is widely used in industrial plants with high fire safety requirements; PIR sandwich panels use polyisocyanurate as the core material, with outstanding thermal insulation performance and strong anti-aging ability, suitable for low-temperature environments such as cold storage; PU sandwich panels are polyurethane sandwich panels, which have both high strength and good thermal insulation, and are easy to construct, and are more common in commercial buildings and clean workshops. ​

EPS Sandwich Panel
EPS Sandwich Panel
Rockwool Sandwich Panel
Rockwool Sandwich Panel
PU Sandwich Panel
PU Sandwich Panel
PIR Sandwich Panel
PIR Sandwich Panel
Sandwich Roof Panel

As wall panels, sandwich panels are mainly used to divide spaces, provide thermal insulation and bear a certain amount of load.

Glasswool Roof Panel
Glasswool Roof Panel
Rockwool Roof Panel
Rockwool Roof Panel
PU Roof Panel
PU Roof Panel
EPS Roof Panel
EPS Roof Panel
Sandwich Wall Panel

The roof panels must take into account the functions of waterproofing, heat preservation, load-bearing and resistance to erosion by the external environment.

Glasswool Wall Panel
Glasswool Wall Panel
Rockwool Wall Panel
Rockwool Wall Panel
PU Wall Panel
PU Wall Panel
EPS Wall Panel
EPS Wall Panel

Production Workshop and Product Display

We have large-scale automated production equipment that can meet the simultaneous production of various products, regardless of the size of your order. In addition to producing pure polyurethane panels, rock wool sandwich panels, insulation sandwich panels, roofing sandwich panels, cold room panels and other products, ZHUOZHU can also quickly produce any sandwich panel products that meet the needs of your project.

aluminium sandwich panel
aluminium sandwich wall panel
pir sandwich panel
cold room panels
Polyurethane and rock wool sandwich panel
rock wool sandwich panel factory
rock wool sandwich panel
pur sandwich panel
sandwich roofing sheet
sandwich panel 40mm
sandwich panel cladding

CHINA'S LEADING HIGH PERFORMANCE SANDWICH PANEL MANUFACTURER AND SUPPLIER

ZHUOZHU is a leading sandwich panel manufacturer in China, providing high-quality wholesale services to global customers at very competitive prices, supporting OEM/ODM customization, and can customize the size, thickness, etc. according to the scene requirements. The product is made of galvanized steel/stainless steel panels and high-efficiency thermal insulation core materials, which have both thermal insulation, corrosion resistance and structural strength, and low maintenance costs within a 30-year service life. We continue to track industry trends and upgrade processes to provide energy-saving and economical solutions for scenes such as construction and cold chain warehousing.

WHOLESALE CUSTOM HIGH PERFORMANCE INSULATION SANDWICH PANELS

Our sandwich panels are available in a variety of colors, and can be customized in thickness, length, panel color, and texture.

Sandwich Panels:Wall vs Roof

We support customized services according to different usage scenarios.
Common sandwich panels include: cold room panels, interior wall panels, exterior wall panels and roof insulation panels.

Sandwich Panel Corrugated Roofing Panel
Rockwool sandwich panel wall sheet
Rockwool Sandwich Panel/Roof Sheet
Cold Room Panels
  • Core Material: PU (polyurethane)
  • Standard Panel Width: 1000
  • Pane Length: 2000≤L≤30000
  • Standard Panel Thickness: 75/100/120/150/180/200/220/250
  • Outer Steel Sheet: 0.5-0.8
  • Inner Steel Sheet: 0.4-0.5
Exterior Wall Panels
  • Core Material: PU (polyurethane), Rock wool, EPS (foam)
  • Standard Panel Width: 360mm
  • Pane Length: 1.5-10m
  • Standard Panel Thickness: 30mm

Super sound insulation

Interior Wall Panels
  • Core Material: PU (polyurethane), Rock wool, EPS (foam)
  • Thickness: 50mm, 75mm, 100mm
  • Width: 980mm, 1180mm, 20mm-1180mm (Customizable)
  • Length : Customizable,Regular ≤6000mm
  • Galvanizing keel: ≥0.6mm
Roof Insulation Panels
  • Core Material: PU (polyurethane), Rock wool, EPS (foam)
  • Standard Panel Width: 1000
  • Pane Length: 2000≤L≤15000
  • Standard Panel Thickness: 45/50/60/75/80/100
  • Outer Steel Sheet: 0.4-0.8
    Inner Steel Sheet0.4-0.9

Advantages of ZHUOZHU Sandwich Panels

The company has advanced PUMA and OMS production lines, with an annual output of 3 million square meters of cold room interior panels, 1.5 million square meters of purification panels, 80 million square meters of EPS sandwich panels, and 10 million square meters of rock wool sandwich panels. ZHUOZHU strictly follows ISO9001, ISO14001, and OHSAS18001 certification standards, and has obtained CE, GOST, and SGS certifications, and has obtained a number of national patents.

High thermal insulation
High Thermal Insulation

The thermal insulation performance of polyurethane sandwich panels is the best on the market, with a density of 40kg/m3.

Guaranteed quality
Guaranteed Quality

All of our panels are of the highest quality and durability for over a decade.

Easy to install
Easy to Install

If you are an experienced homeowner, you can install it yourself. However, please note that incorrect installation will result in reduced sealing and service life.

Careful esthetic
Careful Esthetic

ZHUOZHU always ensures that quality and beauty coexist.

PVR vs PIR

PUR is more suitable for building wall insulation, ordinary cold storage, car interior and other scenes with low requirements for fire prevention and temperature resistance.

Performance IndicatorsPUR (Polyurethane)PIR (Polyisocyanurate)
Full NamePolyurethanePolyisocyanurate
Fire RatingTypically Class B2 (combustible); flame-retardant types can reach Class B1 (difficult to ignite)Can reach Class B1; some products meet Class A2 (non-combustible) of GB 8624 standard
Thermal Conductivity0.020-0.025 W/(m·K)0.018-0.022 W/(m·K)
Bulk Density30-60 kg/m³40-80 kg/m³
Long-term Temperature Resistance≤80℃120-150℃
Water Absorption Rate≤3%≤1%

PIR is mostly used in industrial high-temperature pipelines, LNG storage tanks, ship insulation, high-end cold storage and other fields that have higher requirements for fire protection, temperature resistance and waterproofness.

Tell us your special requirements for sandwich panels

If our standard styles don’t quite meet your needs, we also offer custom made services.

ZHUOZHU Products

One-stop Building Materials Suppliers

PVC Roof Sheet & PVC Corrugated Plastic Panels

PVC Roof Sheets

Clear Corrugated PVC Sheet & Plastic Corrugated Roof Sheets

Clear Corrugated Sheets

Polycarbonate Sheet & Clear Poly Greenhouse Roofing Panels & Lexan Sheet

Polycarbonate Sheets

Sandwich Panel & Polyurethane Sandwich Wall & Puf Roofing Sheets

Sandwich Panels

Metal carved board

Metal Carved Boards

Stone Coated Steel Roof Tiles & Stone Covered Metal Roofing

Stone Coated Steel Roof

General Faq

Design your beautiful Elementor FAQ widget and get more traffic to your website. 

How to ensure quality?

Before mass production of sandwich panels, we will produce samples in advance; When each batch of goods is on the assembly line, it will be inspected and classified one by one, and only after it is qualified will it be packaged and offline; Fully automatic production line, no manual production, all ingredients and temperature control are controlled by computer programs, and workers operate according to the automatic control system;

Delivery time?

Usually the delivery time for one container is 15-25 days. If the order is continuous and stable, the delivery time will be faster. Large orders or other special circumstances need to be confirmed with the production department.

What is the payment method?

T/T is generally used, 40% of the payment must be paid in advance, and the balance must be paid before shipment.

What are the benefits of buying products from ZHUOZHU?

ZHUOZHU is a construction project supplier certified by the Chinese government and one of the few suppliers involved in China's official infrastructure projects. Its product quality is stable and recognized; ZHUOZHU has global large-scale project experience, and engineers cooperate to conduct feasibility analysis in extreme environments to ensure the use of products in extreme environments; It has an experimental team focusing on polymer material research, and is always committed to developing the latest products, and upgrading the performance of each generation of products to reduce product costs. The third-generation co-extrusion material sandwich panel is on the market, with better performance, lighter weight and lower price; The original composite sandwich panel industry chain base has a very complex and large supply chain system, which supports product innovation and globally competitive prices, helping customers break through the market;

What is the service life of sandwich panels?

The normal service life is 25-35 years.

ZHUOZHU BLOG

Learn about manufacturing processes, technologies and materials

Translucent & Clear Fiberglass Roof Panels: The Ultimate Guide to Natural Light Solutions

Translucent & Clear Fiberglass Roof Panels: The Ultimate Guide to Natural Light Solutions

Introduction: Transform Your Space with Light When it comes to industrial, commercial, and agricultural buildings, the quest for perfect natural […]

Exterior Insulated Metal Cladding: A Modern Building Envelope System Merging Aesthetics and Performance

Exterior Insulated Metal Cladding: A Modern Building Envelope System Merging Aesthetics and Performance

Product Overview: Redefining Building Facades Exterior insulated metal cladding is an advanced building envelope system that perfectly combines the appearance […]

A Comprehensive Analysis of Sandwich Panel Core Materials: How to Choose the Best Core for Your Project

A Comprehensive Analysis of Sandwich Panel Core Materials: How to Choose the Best Core for Your Project

The performance of a sandwich panel hinges on its secret ingredient – the insulation core material. Different core materials directly […]

Scroll to Top