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1. The function of the high-frequency corona equipment is to clean the oil stains on the surface of the steel plate.
2. To facilitate better bonding between steel plate and PIR foam
Company and Service Advantages:
2. The company has a professional The Adjuster team, 24 hours to provide uninterrupted after-sales service
(1) Installation and debugging
Equipment arrived at the customer workshop, according to the flat layout of our equipment. We will arrange experienced technicians to install, debug and test-produce the equipment, and make the equipment reach the rated production capacity of the production
line.
(2) Training
Our company provides technical training for our customers. The training includes the structure and maintenance of the equipment, the control and operation of the equipment, experienced technicians will guide and establish the training program. After training, the buyer's technical personnel can master the operation and maintenance of the equipment, can adjust the process and deal with different failures
3. After-sales quality problems within 2 hours to answer, if the telephone video guidance can not be solved, domestic 24 hours to send engineers to the site to solve the problem
4. Factory direct sales price concessions, 40,000 square meters factory, 20 years of Export Enterprises, CE certification, patents more than 100 items
ITEMS |
TYPE/UNIT |
SP-PU-C |
Color Steel Sandwich Panel Specifications |
mm |
Width: 700 ~ 1000
Thickness: 30 ~ 150
|
Production Line Speed |
m/min |
3~8 |
The Maximum Temperature of The Hot Air Circulation |
°C |
70 |
Total Power |
kw |
300 |
Line Dimensions L × W × H |
mm |
86000×7000×3800 |
The Total Installed Power Capacity |
kw |
207 |
Stove Power |
kcal |
200,000 |
Double Belt Iaminated Conveyor Length |
m |
24 |
We are the first drafter of the China National Standards for 3D Panel.
We cooperated with a German manufacturer where the first EPS block molding machine in the world was produced in 1960.
We have a joint venture with Alessio Hi-tech, a leading Italian company for shape molding and pre expansion technology of EPS and EPP.
We have Korean Hi-tech for continuous sandwich panel line with core in Polyurethane, Mineral Wool, Phenolic or EPS. Ten overseas branch offices are responsible for the worldwide sales and after-sales services.
We warmly welcome friends and all those who are interested in our products and services to visit our factories in Shanghai, China.
The High-grade High Frequency Corona Treatment Device from shanghaizhongji is engineered to deliver reliable corona treatment performance for a wide range of substrates and production environments. Designed as a robust solution for surface activation, the device focuses on corona treatment to ensure consistent surface energy enhancement across films, foils, papers and molded parts. With an emphasis on high-frequency corona technology, this system integrates precise control, easy integration into production lines and proven durability to meet the demands of modern packaging industry equipment as well as specialty industrial processes
Product features and core benefits
The core of this offering is advanced high-frequency corona technology that generates a stable, uniform discharge for optimal surface activation. The device provides adjustable power and gap controls so operators can tailor corona treatment intensity to the specific substrate. This tunability ensures that corona treatment outcomes are repeatable and can be matched to the process windows required for downstream operations such as printing, coating and adhesive bonding. A primary benefit is the consistent surface energy enhancement that improves wettability and adhesion, reducing production defects and improving throughput
Key features include:
- High-frequency corona technology with stable output for repeatable surface activation
- Precise power modulation and adjustable electrode gap for substrate-specific corona treatment
- Modular electrode heads and quick-change design for minimal downtime
- Integrated monitoring and feedback systems to ensure consistent surface energy enhancement
- Rugged construction for continuous operation within packaging industry equipment and industrial lines
- Safety interlocks and shielding to meet workplace safety standards
Applications across industries
This High-grade High Frequency Corona Treatment Device is especially suited for the packaging industry equipment segment, where consistent corona treatment is critical for achieving high-quality printing, lamination and adhesion. Typical substrates addressed by corona treatment include polyethylene (PE), polypropylene (PP), oriented polypropylene (BOPP), polyester (PET), polyvinyl chloride (PVC), paper, cardboard and various coated materials
In packaging, corona treatment is applied prior to printing to ensure inks bond reliably and maintain color fidelity. As part of converting lines, the device improves surface energy enhancement so adhesives, laminates and barrier coatings adhere uniformly. For flexible packaging, the high-frequency corona technology improves the interface between polymers and inks or adhesives, enhancing package durability and shelf appeal. In label production, web processing and industrial film extrusion, consistent corona treatment delivered by this unit reduces waste and rework
Innovation and technical advantages
shanghaizhongji’s High-grade High Frequency Corona Treatment Device leverages several innovations that distinguish it from legacy corona systems. First, the use of high-frequency corona technology reduces electrode wear and produces a cleaner, more controlled discharge. This translates to longer electrode life and fewer maintenance intervals. Second, the device incorporates feedback-controlled power delivery to maintain consistent corona treatment intensity even under variable line speeds and environmental conditions. This ensures surface energy enhancement remains within target ranges, minimizing variability from shift to shift
Electrode design is another technical advantage. The device employs optimized electrode geometries and high-precision insulation to produce an even corona treatment profile across the web width. Combined with modular electrode heads, the system can be scaled for narrow web label lines or wide web packaging industry equipment without sacrificing uniformity of corona treatment. Modular design also accelerates changeover and reduces spares inventory
Integration and controls
The unit is designed for straightforward integration into existing production lines and packaging industry equipment. A compact footprint and flexible mounting options allow installation in constrained spaces common in retrofit projects. The device includes industrial-grade controls with an intuitive interface for setting corona treatment parameters, power levels and alarm thresholds. Built-in sensors monitor key variables related to corona treatment performance and surface energy enhancement, providing real-time data for quality control systems
Communication protocols are supported for Industry 4.0 connectivity, enabling centralized monitoring of corona treatment operations across multiple lines. This connectivity supports predictive maintenance strategies by tracking operational hours and treatment parameters, while real-time alerts help avoid off-spec production when corona treatment deviates from target settings
Performance metrics and testing
During validation, the High-grade High Frequency Corona Treatment Device consistently improved water contact angle measurements across tested substrates, demonstrating measurable surface energy enhancement necessary for reliable adhesion. In side-by-side trials with conventional corona systems, the shanghaizhongji device delivered faster stabilization of surface energy at startup and maintained target levels across prolonged run times. These results underscore the effectiveness of high-frequency corona technology when applied to demanding packaging industry equipment and high-speed converting lines where consistent corona treatment is essential
Maintenance and lifecycle cost
The design emphasizes low-maintenance operation. High-frequency corona technology and optimized electrode materials extend service intervals, while modular components simplify replacement tasks. Reduced electrode wear and reliable performance lower the total cost of ownership for plants that routinely rely on corona treatment. Additionally, the system’s ability to maintain consistent surface energy enhancement decreases rejects and rework, contributing to more efficient material usage and improved profitability
Safety and compliance
Safety is integral to the device design. Shielding and interlocks prevent accidental access to high-voltage components during operation. Compliance with relevant electrical and workplace safety standards is provided, along with documentation to support safe installation and operation within packaging industry equipment
Why choose shanghaizhongji’s corona treatment solution
shanghaizhongji combines deep application expertise with robust high-frequency corona technology to deliver a practical, high-performance corona treatment solution for modern production demands. The device targets reliable surface energy enhancement to enable superior printing, coating and adhesive processes across packaging and industrial markets. With scalable electrode configurations, feedback-controlled power management and streamlined maintenance, this High-grade High Frequency Corona Treatment Device is an effective investment for operations seeking to upgrade their corona treatment capabilities and improve overall process yield. The High-grade High Frequency Corona Treatment Device by shanghaizhongji offers advanced high-frequency corona technology for consistent and controllable corona treatment of films, foils and papers. Its precise controls, modular electrode design and integration-ready features make it well-suited to packaging industry equipment and other industrial processes requiring repeatable surface energy enhancement. By delivering stable corona treatment performance, extended electrode life and real-time monitoring, this device helps manufacturers achieve better adhesion, improved print quality and reduced waste, making it a compelling choice for modern converting and packaging operations
