High pressure Sandwich Panel Machines

Modern building materials must meet key technical specifications including strength performance, density control, installation convenience, structural stability, and long-term durability. High-pressure polyurethane (PU) foam technology not only fulfills these requirements but also exhibits outstanding flame resistance and insulation properties. Due to these technical advantages, high-pressure PU materials are widely applied across multiple construction sectors, including cold chain storage, medical refrigeration, automotive manufacturing, sports arenas, and high-end residential projects. Our factory’s PU production line adopts high-pressure foaming technology, achieving industry-leading performance levels.

Advantages of High Pressure Sandwich Panel Line:

1. **Flame Resistance** – Complies with B2-grade fireproofing standards for building materials.
2. **Insulation Performance** – Meets thermal conductivity requirements for professional cold chain facilities.
3. **Advanced Mixing Process** – High-pressure blending ensures homogeneous material distribution, creating denser foam cell structures, improving product lifespan by **30%+**.
4. **Higher Material Efficiency** – Compared to low-pressure processes, **7-9% less raw material consumption**, significantly lowering production costs.
5. **Self-Cleaning Nozzle System** – Proprietary automatic cleaning eliminates manual maintenance, reducing downtime by **50%**.
6. **Intelligent Flying Cutting System** – Fully automated operation cuts labor costs by **60%**.
7. **Multi-Layer Pressure Monitoring** – Ensures **safe and stable** machine operation.

**Optional Product Configurations:**
1. **PU Composite Panels** (metal/PVC surface, Thickness: **18-22mm or 22-25mm**)
2. **Double-Metal Sheets** (standard **25mm & 50mm** thickness)

2 Sätze von 5 Tonnen hydraulischen Abrollern mit Ladewagen

** Multi-Level Feeding System for Enhanced Roll Forming Performance**

Our unloading system to deliver synchronized material distribution to both upper and lower roll forming stations. This innovative stratification enables:

1. **Independent Material Management**
– Upper deck: Precision-calibrated for optimal feed to top-tier roll formers
– Lower deck: Engineered for flawless material routing to bottom-tier forming units

2. **Smart Flow Regulation Technology**
• Real-time feed rate adjustment through controlled mechanisms
• Embedded optical sensors for continuous material tracking

3. **Production Optimization Benefits**
– 10% reduction in material transfer fluctuations (vs conventional single-tier systems)
– Elimination of cross-tier interference through isolated control circuits

4.The system’s modular design allows seamless integration with existing roll forming lines while delivering:
✓ 8-9% throughput enhancement

This advancement represents a fundamental improvement in continuous manufacturing processes.

2 Sätze von Walzprofiliermaschinen

Double Roll Forming Machine: Two of the most important machines on the production line are the double roll forming machines. They are essential to the production process because they ensure that the raw materials can be formed synchronously, accurately and efficiently. In order to meet the product requirements, the forming machine uses roll forming to process the raw materials into preset sizes and shapes.
The double-layer machine can be controlled by PLC, with two layers produced synchronously, or it can only run a single layer

The stable operation of this equipment not only improves production efficiency, but also ensures product consistency and excellent quality.

1 Satz Hochdruck-PU-Schaumsystem

**Principle and comparison of high-pressure foaming and low-pressure foaming of polyurethane**

1. Low-Pressure Foaming
Principle:
Mechanical mixing: Mix material A (isocyanate) and material B (polyol + additives) by low-speed stirring (200-1000 rpm), and inject them into the mold by gravity or low pressure.
Chemical reaction: Isocyanate (-NCO) reacts with polyol (-OH) to form polyurethane, accompanied by the formation of CO₂ bubbles (foaming agent effect).
Merkmale:
– The mixing accuracy is low, and problems such as uneven bubbles and inconsistent density are prone to occur.

2. High-Pressure Foaming
Principle:
High-pressure impact mixing: A and B materials are accurately measured under high pressure (100-200 bar) and instantly mixed (mixing time <1ms) by high-precision collision mixing heads (such as Hennecke, Cannon).
-Atomization mixing: High pressure makes the raw materials atomized to ensure uniform mixing at the molecular level.

Core advantages of high-pressure foaming:
1. More uniform mixing and finer pores
– High-pressure atomization can reduce dead zones and avoid defects caused by unmixed materials (such as lumps and uneven bubbles).
2. Higher production efficiency
– Suitable for automated continuous production.
3. Less material waste
– The mixing head is self-cleaning, with a residual amount of <0.1%, which reduces raw material loss and can save 7-9% of raw materials compared to low-pressure foaming.
4. Better product performance
– The pore structure is more uniform.

High-pressure foaming technology is superior to low-pressure foaming in terms of mixing accuracy, production efficiency and product performance, and is particularly suitable for high-end manufacturing.

1 Satz pu-Host-Maschinen

Die Länge des PU-Hauptrahmens beträgt in der Regel 25 bis 30 Meter und wird durch die vom Kunden zur Verfügung gestellten Zeichnungen und die erforderliche Schaumstoffdicke bestimmt. Um den Produktionsanforderungen der Kunden besser gerecht zu werden, wurde die Anlage unter Berücksichtigung der Vielfalt und Flexibilität der verschiedenen Produktspezifikationen entwickelt, so dass sie sich an verschiedene Produktionsszenarien anpassen kann.

Unser Hauptrahmen ist mit einem Gummiriemenantriebssystem ausgestattet, das nicht nur die Stabilität und Effizienz der Anlage während des Betriebs gewährleistet, sondern auch die Herstellungskosten der Maschine erheblich senkt. Im Vergleich zu herkömmlichen Übertragungsmethoden sind Gummiriemen hervorragend stoßdämpfend und verschleißfest, wodurch die Lebensdauer der Ausrüstung verlängert, die Wartungshäufigkeit reduziert und die Betriebskosten für Unternehmen gesenkt werden.

1 Kompletter Satz PLC-Steuerungssystem

Die gesamte Hauptmaschine besteht aus 3 Teilen: Rollformmaschine, PU-Schaumsystem und Schersystem. Jeder Teil hat ein unabhängiges elektronisches Steuerungssystem, und die 3 Systeme können intelligent online betrieben werden.

1 Fliegendes Schneidsystem

Schneidesystem mit Servomotor: Das Schneidesystem verwendet einen hochpräzisen Servomotor, um das präzise Schneiden von Polyurethanplatten zu gewährleisten, und kann schnell, genau und stabil Materialien verschiedener Größen und Anforderungen schneiden. Es ist auch mit einem speziellen Staubabscheider ausgestattet, der hygienisch und schön ist.