USA Case Study: 13-Meter Automatic Conveying Hot Press Line Supports Stable Sandwich Panel Manufacturing in San Diego

Market Background

As industrial facilities, logistics warehouses, cold storage projects, and renewable energy infrastructure continue to expand across the U.S. West Coast, demand for rock wool sandwich panels remains strong.

These panels are widely used due to their fire resistance, thermal insulation performance, and installation efficiency. However, manufacturers increasingly recognize that product quality depends not only on raw materials and adhesives but also on the stability of the hot pressing process.

For extra-long panels exceeding 10 meters, hydraulic synchronization, pressure stability, and temperature control play a critical role in ensuring panel quality.

Customer and Application Scenario

The customer, located in San Diego, California, specializes in:

• Rock wool sandwich panel manufacturing
• Industrial building enclosure systems
• Warehouse insulation panels
• Commercial construction panel processing

As project volumes increased, the company sought a solution capable of producing long-span panels while maintaining consistent bonding quality and panel flatness.

Pressure stability during the curing stage was one of the customer's primary concerns.

Our Solution

To meet the customer's requirements, we supplied a 13-meter automatic conveying hot press production line, completing manufacturing and delivery within 45 days.

The system features:

13-Meter Integrated Hot Press Platform

Supporting panel lengths up to 12.8 meters.

100-Ton Hydraulic Pressing Capacity

Providing sufficient and stable pressing force for large-format sandwich panels.

Multi-Point Independent Hydraulic Cylinders

Hot pressing is not simply about applying force. The adhesive layer requires continuous pressure holding under controlled temperature conditions to achieve proper curing.

For a 13-meter press, hydraulic synchronization becomes critical. Uneven pressure between the two sides may result in:

• Panel center bulging
• Edge collapse
• Reduced flatness
• Inconsistent bonding quality

PLC Closed-Loop Control System

The hydraulic system maintains pressure fluctuation within ±0.5 MPa, supporting stable pressure distribution throughout the curing process.

Customer Feedback

After commissioning, the customer highlighted the system's pressure-holding stability as one of its most valuable advantages.

According to the customer:

• Pressure control remained stable during production
• Long-span panel manufacturing operated smoothly
• Panel flatness met production expectations
• Adhesive curing performance was consistent
• Product quality remained reliable across batches

Conclusion

In long-span sandwich panel manufacturing, successful hot pressing depends not only on temperature control but also on maintaining stable pressure throughout the curing cycle.

This San Diego project demonstrates how a 13-meter hot press platform, multi-point hydraulic cylinder design, and PLC closed-loop control system can work together to provide reliable bonding quality, panel flatness, and production consistency for modern rock wool sandwich panel manufacturers.