Understand the Continuous Sandwich Panel Line

Currently, polyurethane insulation boards can be divided into two types based on their production methods: continuous polyurethane insulation boards and ordinary hand-made insulation boards. As the name suggests, hand-made boards are made by manual methods. 

This involves first bending color-coated steel plates through a machine, then manually installing surrounding keels, applying glue, filling core materials, and pressing them together. Continuous boards, on the other hand, are made by continuously pressing color steel sandwich panels. On a specialized production line, color-coated steel plates are bonded with core materials and cut to size in one go, producing the final product.

Insulation Board Production Process

High-quality polyurethane foaming equipment is introduced for this process. The user-friendly interface of the continuous sandwich panel line facilitates operation and monitoring. Advanced computer control allows for easy adjustment of the entire line's parameters, effectively ensuring the stable and rapid operation of the continuous sandwich panel line. Not only does it exhibit excellent performance, but it also reflects an extreme pursuit of quality in every detail. 

The design fully considers the various needs of actual production, ensuring production efficiency while significantly reducing operational difficulty. Furthermore, the continuous sandwich panel line boasts a high level of automation and intelligence, which can greatly reduce human interference, enhancing the consistency and reliability of the product.

The production process of the continuous sandwich panel line roughly includes the following steps: active decoiling → film covering and cutting → forming → film interface roller → panel preheating → foaming → double-belt curing → bandsaw cutting → quick roller → cooling panel → automatic stacking → final product packaging.

The continuous sandwich panel line can complete tasks such as panel conveying, flipping, moving, and packaging, improving the efficiency of the production line. The product packaging is effective, ensuring that the product is undamaged during production and transport. The performance is excellent, the quality is stable, and it has been widely applied and well-received.

Advantages of Continuous Sandwich Panel Line Insulation Boards

Controlled Quality

Manufacturers of insulation boards will introduce automated production lines and use high-pressure foaming systems. Pentane-based polyurethane foaming systems are generally used, which foam evenly and have a high closed-cell rate that remains stable at over 90%. The quality is controllable, the density of each measurement point on the board is consistent, and it has strong fire resistance and thermal insulation properties.

Flexible Dimensions

Compared to hand-made boards, the production of continuous boards is more flexible. Hand-made boards are limited by the production method and cannot produce large sizes, while continuous boards can be customized to any size according to customer requirements, with no size limitations.

Production Capacity Upgrade

The production line for polyurethane continuous sandwich panels is fully automated. The panels are formed in one piece, without the need for human intervention during the process. It can operate continuously for 24 hours, with strong production capacity, short production cycles, and fast delivery speeds.

Convenient Use

Continuous polyurethane boards use a tongue-and-groove structure for connection, with rivets used to reinforce the connection at both ends. The assembly operation is convenient, the construction time for cold storage is short, the panels are tightly connected, the seam airtightness is strong, and the probability of deformation is low.

Powerful Performance

Pentane-based polyurethane continuous boards have stable overall performance, a fire resistance rating that can reach B1 level, excellent thermal insulation properties that exceed national standards, and can meet the needs of different cold storage users.