Fully Automatic PU Sandwich Panel Machine

Sinowa is a fully automatic pu sandwich panel machine supplier from china, customized high-quality & high efficiency fully automatic pu sandwich panel machine at low price, the adoption of system integration technology and bus control technology accomplishes the full automatization of integrated and coordinated control of the fully automatic pu sandwich panel machine with accessible remote interactive communication. Ranking the first-class level in the world, it is currently the fully automatic pu sandwich panel machine in the market taking a comprehensive lead in high performance.

The high-tech fully automatic pu sandwich panel machine can meet a variety of production needs of customers, the whole fully automatic pu sandwich panel machine design concept of modularization enables all our components to be integrated and combined at will. Our high efficiency fully automatic pu sandwich panel machine can easily automate the production of roof sandwich panel, wall sandwich panel, cold storage sandwich panel and other products by different combination and configuration selection and siple switching. The inner core layer can be polyrethane or rock wool, glass wool, an so on.

The high precision fully automatic pu sandwich panel machine has high adaptability, which may produce various sandwich panel of the PU, PIR and rock wool systems. We may design various products according to the customer’s requirements, including various configurations, so as to meet their demands with flexible price system. Highly integrated and linked control system centralizes all control points at the main central center, achieving parameter linkage, fault self-diagnosis controlled by the whole line and shipping distance control. High-level automatic control system also saves the manpower and reduces the manpower loss for customers.

The precision servo hoisting mechanism employed by the main engine without hydraulic system makes the board thickness control flexible and the customer may conveniently change or adjust the board thickness. There will be not such troubles as hydraulic system adjustment, leakage, maintenance, etc.

High-level energy saving and protection design makes the whole fully automatic pu sandwich panel machine possible to produce around the clock throughout the year and the customer will save huge budget. In addition, the isolated heat preservation room is constructed for warming the environment. The energy saving and protection design of our manufacturing line may guarantee that the customer’s production line may be freely heated and produce in the main time to save more costs for customers.

The high-power low-consumption design quickens the reaction of the cheap fully automatic pu sandwich panel machine while energy consumption is kept low. With the brand-new, fully sealed inner insulation design, the energy consumption is controlled at the minimum level to achieve the design objective of less than an hour for the insulation system to be activated from the room temperature above 5℃ to the production process temperature. The energy consumption is only 40% that of those similar products.

A fully automatic PU sandwich panel machine is an integrated intelligent production system that combines mechanical, electronic, and chemical technologies, specifically designed for the continuous and efficient production of polyurethane (PU) sandwich panels. This advanced equipment realizes the seamless combination of surface materials (usually metal sheets such as color steel plates, galvanized steel sheets, or aluminum-magnesium-manganese alloy plates) and PU foam core through a highly automated process, forming composite panels with excellent comprehensive performance. Unlike traditional manual or semi-automatic production methods, the fully automatic PU sandwich panel machine achieves the entire production process from raw material feeding to finished product stacking without manual intervention, which not only greatly improves production efficiency but also ensures the stability and consistency of product quality, making it an indispensable core equipment in the modern building materials and industrial insulation fields. The overall structure of the fully automatic PU sandwich panel machine follows the modular design concept, and each functional unit is closely connected and cooperates with each other to form a complete production chain, which can be flexibly adjusted and combined according to different production needs, showing strong adaptability and scalability.

The structural composition of the fully automatic PU sandwich panel machine is scientific and reasonable, and each component plays a key role in ensuring the smooth operation of the production line. The unwinding system is the starting point of the entire production line, mainly composed of a dual-station unwinding machine, an automatic correction device, and a preprocessing unit. The dual-station unwinding machine can realize non-stop roll changing, which effectively avoids production interruptions caused by roll changing and improves production continuity and efficiency; the automatic correction device can accurately control the centering accuracy of the metal coil within ±1 mm, ensuring that the surface material does not deviate during the conveying process, thus laying a solid foundation for the subsequent forming and composite processes; the preprocessing unit includes cleaning, passivation and other processing technologies, which can remove oil stains, dust and other impurities on the surface of the metal sheet, enhance the bonding strength between the surface material and the PU core material, and prevent the phenomenon of delamination between the surface and the core during the use of the finished panel. The forming system is responsible for processing the flat metal coil into the required plate shape, and its main components include a multi-roll continuous forming machine, a hydraulic servo system, and a quick mold changing device. The multi-roll continuous forming machine adopts 16-24 composite roller wheels for progressive forming, which can process metal sheets into various shapes such as corrugated, flat, or profiled according to production needs, and the formed plate has high flatness and structural stability; the hydraulic servo system can precisely control the forming pressure and speed, ensuring the consistency of the forming effect of each batch of panels; the quick mold changing device can complete the switching between different plate types within 30 minutes, which greatly improves the flexibility of the production line and can quickly respond to the diverse needs of the market.

The foaming system is the core part of the fully automatic PU sandwich panel machine, which directly determines the quality and performance of the PU core material. It is mainly composed of a high-pressure foaming machine, a temperature control unit, a mixing head, and a measurement system. The high-pressure foaming machine usually works at a pressure range of 120-200 bar, which can fully mix the two components of PU raw materials (isocyanate and polyether polyol) to ensure the uniformity and fineness of the foam; the temperature control unit can accurately control the temperature of the raw materials within ±0.5 ℃, because the temperature of the raw materials has a crucial impact on the foaming effect, and stable temperature control can avoid problems such as uneven foam density and poor foaming effect; the mixing head adopts a self-cleaning design, with a mixing efficiency of more than 98%, which can prevent the raw materials from adhering to the mixing head and avoid affecting the mixing effect and production progress; the measurement system has a flow accuracy of ±1.5%, which can accurately control the ratio of the two components of the PU raw materials, ensuring the stability of the core material performance. The composite system is responsible for realizing the perfect combination of the surface material and the core material, including a double-track press, a temperature control platform, and an online thickness gauge. The double-track press has an evenly adjustable pressure of 0.1-0.3 MPa, which can ensure that the surface material and the PU core material are closely bonded without gaps; the temperature control platform maintains the optimal foaming temperature environment, providing favorable conditions for the full foaming and curing of the PU raw materials; the online thickness gauge can monitor the thickness of the panel in real time with an accuracy of ±0.2 mm, ensuring that the thickness of the finished panel meets the design requirements. The cutting system and stacking system are the end links of the production line. The cutting system is equipped with a flying saw cutting unit, which has a cutting accuracy of ±1 mm, can realize continuous cutting without stopping the machine, and ensure the neatness of the panel cutting surface; the automatic stacking system adopts a six-axis robotic stacker crane, with a maximum stacking height of 3.5 meters and a load capacity of not less than 500 kg, which can automatically stack the cut finished panels, reducing manual labor intensity and avoiding damage to the panels caused by manual stacking.

In addition to the above core components, the fully automatic PU sandwich panel machine is also equipped with an intelligent control system, which is the "brain" of the entire production line. The control system adopts PLC control technology and industrial robot technology, integrating all control points in the main control center, realizing parameter linkage, full-line fault self-diagnosis, and remote interactive communication functions. Operators can set and adjust production parameters such as production speed, panel thickness, and cutting length through the human-machine interface, and the system can automatically synchronize the operation status of each unit equipment to ensure the smooth connection of the entire production process. At the same time, the control system is also equipped with a safety protection device, including regional laser scanning protection, dual-circuit emergency stop design, and automatic overload protection device, which can effectively ensure the safety of operators and equipment during the production process. The modular design of the entire machine makes the installation, maintenance and maintenance of the equipment more convenient. Each functional module can be disassembled and assembled independently, which reduces the difficulty of maintenance and shortens the maintenance time, thus ensuring the continuous and stable operation of the production line.

The fully automatic PU sandwich panel machine has excellent comprehensive performance, which is mainly reflected in high automation, stable production efficiency, excellent product quality, energy saving and environmental protection, and strong adaptability. In terms of automation, the entire production line realizes full automation from raw material unwinding, preprocessing, forming, foaming, composite, cutting to finished product stacking, without manual intervention, which not only reduces the labor intensity of operators but also avoids human errors, ensuring the consistency of product quality. The number of operators required for the entire production line is only 7-8, which greatly reduces labor costs. In terms of production efficiency, the production speed of the fully automatic PU sandwich panel machine can be adjusted between 3-12 meters per minute, and a standard production line can produce 150-300 square meters of sandwich panels per hour, which is 10-15 times higher than manual production. The daily production capacity can reach more than 5,000 square meters (calculated by 8 hours), and the annual output can reach the million-square-meter level, which can fully meet the needs of large-scale batch production. In terms of product quality, the machine adopts precise control technology in each production link, so that the density deviation of the produced PU sandwich panels is ≤3% (the national standard is 8%), the flatness is ≤1 mm/m, and the bubble uniformity is ≥95%, which fully meets the strict requirements of the modern construction industry for material performance. The panels produced have excellent thermal insulation, sound insulation, fire resistance, and corrosion resistance, and the bonding strength between the surface and the core is high, which is not easy to delaminate and deform.

Energy saving and environmental protection are important performance advantages of the fully automatic PU sandwich panel machine. The machine adopts a variety of energy-saving designs, such as the heating system only heats the surface of the chain plate instead of the entire machine, which greatly improves energy utilization efficiency and reduces energy consumption; the heat recovery utilization rate reaches 65%, which can effectively recycle the waste heat generated during the production process and reduce energy waste. In terms of environmental protection, the machine uses 141b or cyclopentane instead of CFC as a foaming agent, which avoids the damage of CFC to the ozone layer and meets the global environmental protection requirements; the VOC emission is less than 50 mg/m³, and the waste recycling rate is more than 90%, which minimizes environmental pollution. In terms of adaptability, the fully automatic PU sandwich panel machine has strong flexibility and can produce various types of PU sandwich panels by adjusting parameters and replacing modules. It is compatible with different surface materials such as color steel plates, stainless steel plates, aluminum foil, and non-woven fabrics, and can also be compatible with core materials such as rock wool and glass wool, realizing the production of multi-functional composite panels. At the same time, the machine can produce panels of different widths (600-1200 mm, customizable) and thicknesses (30-200 mm), which can meet the diverse needs of different application scenarios. The quick mold changing and formula storage functions (supporting the storage of more than 100 formulas) enable the production line to quickly switch between different product specifications, improving the market response speed.

According to the differences in production mode, core material type, and surface material type, the fully automatic PU sandwich panel machine can be divided into various types to adapt to different production needs and application scenarios. According to the production mode, it can be divided into continuous and discontinuous production lines. The continuous production line adopts a fully automated continuous operation mode, with high production efficiency, stable operation speed, and suitable for large-scale standardized product production. It can realize continuous output of finished panels, and the production process is highly automated, which is suitable for enterprises with large production volume and stable product specifications. The discontinuous production line is more suitable for small-batch and customized product processing. It can flexibly adjust process parameters to meet the production needs of special specifications and shapes of panels, and the investment cost is relatively low, which is suitable for small and medium-sized enterprises or enterprises with diverse product needs. According to the type of core material, it can be divided into pure PU sandwich panel machines, PU-rock wool composite sandwich panel machines, and PU-glass wool composite sandwich panel machines. The pure PU sandwich panel machine takes pure PU as the core material, which has excellent thermal insulation and sound insulation performance, and is suitable for scenarios with high requirements for thermal insulation effect; the PU-rock wool composite sandwich panel machine takes PU and rock wool as composite core materials, which not only has the thermal insulation performance of PU but also has the fire resistance of rock wool, and is suitable for scenarios with high requirements for fire safety; the PU-glass wool composite sandwich panel machine has the advantages of light weight, good sound absorption, and low cost, and is suitable for general industrial and civil building insulation scenarios.

According to the type of surface material, the fully automatic PU sandwich panel machine can be divided into color steel surface PU sandwich panel machines, stainless steel surface PU sandwich panel machines, and aluminum foil surface PU sandwich panel machines. The color steel surface PU sandwich panel machine is the most widely used type. The color steel plate has the advantages of beautiful appearance, corrosion resistance, and low cost, and is suitable for the exterior walls, roofs, and partitions of industrial plants, warehouses, and prefabricated buildings; the stainless steel surface PU sandwich panel machine has strong corrosion resistance and easy cleaning, and is suitable for high-humidity, high-corrosion scenarios such as food processing workshops, cold storage, and chemical plants; the aluminum foil surface PU sandwich panel machine has good heat reflection performance and is suitable for thermal insulation projects such as pipelines and equipment. In addition, according to the foaming method, it can be divided into double-component foaming and multi-component pentane foaming production lines. The multi-component pentane foaming production line has more outstanding environmental performance and meets higher environmental protection standards, which is the mainstream development direction in the future.

The fully automatic PU sandwich panel machine has a wide range of applications, covering many fields such as construction, cold chain logistics, industrial insulation, and environmental protection, and has become an important supporting equipment for the development of related industries. In the construction field, it is mainly used for the production of exterior wall insulation panels, roof insulation panels, partition panels, and prefabricated building components. The PU sandwich panels produced by the machine have excellent thermal insulation performance, which can effectively reduce the energy consumption of buildings, meet the requirements of building energy conservation, and at the same time have the advantages of light weight, high strength, and quick installation, which can greatly shorten the construction period and reduce the construction cost. They are widely used in steel structure factories, high-rise buildings, commercial complexes, prefabricated houses, and other buildings. In the cold chain logistics field, the machine is mainly used for the production of cold storage insulation panels, refrigerated truck compartment panels, and cold chain logistics transfer station insulation panels. The PU sandwich panels have excellent low-temperature insulation performance and can effectively maintain the constant temperature inside the cold storage and refrigerated truck, ensuring the quality of frozen and refrigerated goods such as food, medicine, and aquatic products. In meat processing, aquatic freezing and other high-frequency flushing scenarios, stainless steel surface PU insulation panels are widely used due to their strong corrosion resistance and easy cleaning; embossed aluminum plate surface panels are suitable for curing warehouses and processing workshops in high-humidity environments, which can maintain long-term use stability.

In the industrial insulation field, the fully automatic PU sandwich panel machine is used to produce insulation panels for industrial pipelines, equipment, and workshops. The PU sandwich panels have good thermal insulation and sound insulation performance, which can reduce the energy loss of industrial equipment and improve the working environment of the workshop. They are widely used in metallurgy, petroleum, chemical, electric power, and other industries. For example, in the petrochemical industry, they are used for the insulation of pipelines and storage tanks to prevent heat loss and ensure the normal operation of equipment; in the power industry, they are used for the insulation of power plant workshops and equipment to improve energy utilization efficiency. In the environmental protection field, the machine can produce insulation panels for waste treatment equipment and environmental protection facilities, which can effectively reduce the diffusion of harmful gases and noise and protect the environment. In addition, the PU sandwich panels produced by the machine can also be used in special fields such as clean rooms, laboratories, and high-temperature and high-humidity environments, which have the advantages of corrosion resistance, dust prevention, and easy cleaning, and can meet the special requirements of these fields for building materials.

With the continuous development of the global construction industry, the increasing requirements for building energy conservation and environmental protection, and the rapid development of the cold chain logistics industry, the market demand for fully automatic PU sandwich panel machines is constantly growing. The machine not only improves the production efficiency and product quality of PU sandwich panels but also promotes the upgrading and development of the building materials industry, and makes important contributions to the realization of energy conservation and emission reduction goals. In the future, with the continuous progress of science and technology, the fully automatic PU sandwich panel machine will develop in the direction of higher automation, intelligence, energy saving, and environmental protection. The integration of artificial intelligence technology will make the production line more intelligent, realizing automatic parameter adjustment, fault prediction, and remote maintenance; the optimization of production technology will further improve production efficiency and product quality, reduce energy consumption and environmental pollution; the expansion of product types will better meet the diverse needs of different fields, and the application scope will be further expanded. As an important equipment in the modern industrial production system, the fully automatic PU sandwich panel machine will play a more important role in promoting the development of related industries and creating greater economic and social benefits.

« Fully Automatic PU Sandwich Panel Machine » Update Date: 2026/4/13

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