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PU Continuous Sandwich Panel Line

PU Continuous Sandwich Panel Line

PU Continuous Sandwich Panel Line

Product Overview

This production line is used for manufacturing polyurethane (PU) sandwich panels, which possess properties such as insulation, heat insulation, and fire resistance. It is widely applied to the walls and roofs of factories, cold storage facilities, warehouses, and public buildings.
The entire line includes processes such as unwinding, forming, foaming, dual-track composite, fixed-length cutting, and automatic stacking. It adopts high-pressure foaming and dual-track curing technologies to ensure the flatness and dimensional accuracy of the panels.
The equipment has a high degree of automation, operates stably, is suitable for large-scale continuous production, and has obvious investment return advantages.

Configuration Options

Basic

Standard

Advanced

Economical and practical, meeting basic needs

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Balanced performance, stable and reliable

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High-speed, high-efficiency, intelligent and durable

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Line Speed3–6 m/min6–8 m/min8–12 m/min
Panel Thickness30–100 mm30–150 mm30–200 mm
Panel Width600–1000 mm600–1200 mm600–1250 mm
Foaming SystemSingle Mixing Head Double Mixing Head Dual-mixing head + Automatic Dosage Ratio System 
Double ConveyorStandard tracks, basic cooling system Strengthened tracks, water-cooling system Heavy-duty crawler, water-cooled + temperature control system 
Cutting SystemManual length setting cutting Semi-auto Flying Saw Fully automatic servo flying saw 
 Stacking SystemManual plate collection Semi-auto stacking Full-auto Stacker (Full-automatic Palletizing and Conveying Line) 
Control SystemBasic PLC ControlPLC + Touchscreen HMI Fully automated production management system - SCADA 
Raw MaterialPUPU、PIRPU, PIR, rock wool (optional composite)

Performance Comparison

 Roll Forming MachineOther SuppliersEffect
Forming machine frame structure Arched-shaped welding, CNC gantry milling processing Ordinary wall panel structure Our product offers higher stability and accuracy, and the wall panel type meets basic requirements. 
Drive mode Hybrid transmission of gearbox and chain Single chain drive The mixed transmission has a longer service life and the chain transmission has a lower cost. 
Roller material GCr15 undergoes quenching treatment, resulting in excellent wear resistance. 45# steel chrome-plated The production is generally consistent, but it shows significant advantages during high-speed or long-cycle operations. 
Foaming system Multiple sets of high-pressure foaming machines, equipped with imported metering pumps Single pump configurationMultiple pumps ensure stability, and a single pump can also be used at low production capacity. 
Heating system Electric heating + circulating heat transfer oil Single electric heating The dual-system temperature control is more stable, and the electric heating is more energy-efficient in terms of consumption. 
Cutting method Fly-saw tracking cutting, Cr12MoV blade Stoppage hydraulic cutting The flying saw is suitable for continuous production, while the stationary saw is suitable for medium and low-speed production. 
Degree of automation Full-line PLC centralized control, touchscreen operation Segmented control High degree of automation, reducing reliance on human resources; conventional solutions are more economical 
Stability Annual maintenance: 1-2 times per year Average annual maintenance: 3-5 times Less frequent maintenance, reducing the risk of long-term downtime 
Energy consumptionApproximately 120 - 150 kW (depending on the configuration)100-130 kWOur company has a higher production capacity and the energy consumption gap is within an acceptable range.

Video

PU Continuous Sandwich Panel Line

Product photo

  • Equipment assembly line
  • Equipment assembly line
  • Equipment assembly line
Ultrasonic control
The entire process is controlled by variable frequency through ultrasonic detection. The slackness of the unwinding process is monitored by photoelectric induction to ensure smooth and continuous feeding.
Film covering device
Apply a protective film on the surface of the tablet to prevent scratches during transportation and processing, thereby enhancing the protection effect of the finished product.
Preheating oven
The heating is carried out by a hot air circulation method. The heated air is then sent into the oven to uniformly preheat the double-layered sheets. The temperature can be adjusted continuously to ensure stable and efficient heating.
Foaming system accessories
The package includes a sheet conveyor device, a tape sealing device and a sponge sealing device, ensuring a stable foaming process and reliable edge sealing.
DBL Double Sideband System
The two-way belt device controls the thickness and production speed of the sheet during the foaming process. It synchronously clamps both sides, restricting horizontal expansion and guiding the sheet forward. As an active running mold, it can effectively prevent deformation and scratches, ensuring the dimensional accuracy and surface quality of the finished sheet.
Online cutting system
The cutting device is set to the desired length by the PLC and precisely triggered by the encoder. It can complete the fixed-length cutting without stopping. During operation, an adsorption device is also equipped to promptly remove foam debris and dust, ensuring the continuity of production and the cleanliness of the finished products.

Finished product example

Exterior wall composite panel
Composite panel
Composite panel
Laminator
Laminator
PU interior panel
Service Support
On-sale
After-sales
On-sale

Senior engineers provide on-demand, phased training and on-site machine inspections. Efficient supply chain integration and excellent value for money.

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After-sales

Professional pre-shipment inspection services, lifetime technical support; engineers dispatched to your site for on-site installation, commissioning, and operational training to accelerate production and operations; spare parts marketplace with instant replenishment and express shipping to ensure production and operational continuity.

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On-sale
Engineer Training Appointment
Efficient meeting communication, focused on answering questions and resolving issues. Utilizing a "theoretical explanation + hands-on demonstration + group practice" model to accurately convey knowledge.
On-site machine inspection at the factory
On-site machine inspection at the factory to personally test equipment performance and accuracy. Conducted by a team of professional engineers and in collaboration with a third-party testing institution.
Recommended high-quality supporting suppliers
We have established a high-quality supply chain resource pool based on more than ten years of industry experience and have built an intelligent supplier matching system.
After-sales
Professional device inspection service
A team of senior engineers equipped with professional testing tools provides 24/7 online support and a 2-hour response time for urgent tickets.
Engineer dispatch on-site
A team of senior engineers with over 10 years of industry experience. Implementation of a three-stage training system comprising theory, practical application, and assessment. A special "on-the-job training" component is included, with engineers fully participating in the first week of trial production.
Accessories Store
Build your own full-category accessories mall. Rely on an intelligent warehousing system to achieve 24-hour lightning-fast delivery. Through visual logistics tracking and factory-based safety stock solutions.
Qualification Certificate

The company has obtained ISO 9001:2008 quality management system certification. The over 30 series and thousands of specifications of products produced have passed the national CCC certification and CE certification issued by TUV.

Forming machine MD main certificate
Forming machine MD main certificate
Forming machine EMC main certificate
Forming machine EMC main certificate
Vertical stacking MD main certificate
Vertical stacking MD main certificate
Vertical stacking EMC main certificate
Vertical stacking EMC main certificate
Open Book MD Main Certificate
Open Book MD Main Certificate
Open Book EMC Master Certificate
Open Book EMC Master Certificate
Two-way stacking MD main certificate
Two-way stacking MD main certificate
Two-way stacking EMC main certificate
Two-way stacking EMC main certificate
FAQ
01 /
Payment Method

We usually adopt the payment method of 30% advance payment + 60% payment before shipment + 10% payment after installation and commissioning are completed to ensure the rights and interests of both parties.

02 /
Delivery Cycle

The delivery time for standard equipment is generally 45 to 60 days. If personalized customization is involved, the specific time will be adjusted appropriately according to the complexity of the plan.

03 /
Installation and Commissioning

We provide detailed installation instructions and operation materials. Customers can complete the basic installation according to the instructions. If professional engineers are needed for on-site services, our team members hold multiple national visas and can directly go to the customer's factory for debugging and training. The related travel and service costs will be borne by the customer.

04 /
Warranty and Services

The equipment comes with a 1-year warranty and lifetime technical support by default. If the customer agrees to authorize the project for case presentation, we can extend the warranty period by an additional 1 year.

05 /
Operators and Skill Requirements

Each device is equipped with detailed operation instructions. Generally, 2-3 workers can complete the production process. The operation interface is simple. The default language is English (other languages can be optionally selected), and basic training is provided to ensure that the operators can start working quickly.

06 /
Equipment maintenance and servicing

We offer comprehensive maintenance manuals and schedules, covering daily inspections, maintenance of key components, and long-term maintenance. This ensures that customers can operate in accordance with the standards, and the maintenance procedures are clear and easy to understand, facilitating on-site implementation.