production line
The production process of PP (polypropylene) boards mainly includes 5 core steps:
Raw Material Preparation: Mix PP resin (main material) with additives (e.g., anti-aging agents, flame retardants) in a mixer to ensure uniform blending.
Melting & Extrusion: Feed the mixed materials into an extruder. The extruder heats (at 180-220℃) to melt the materials, then pushes the molten PP through a die to form a continuous sheet.
Calendering & Shaping: Pass the molten sheet through a set of calender rolls. The rolls (controlled for temperature and pressure) flatten and smooth the sheet to the target thickness.
Cooling & Cutting: Cool the shaped sheet with water or air to solidify it. Then, use a cutting machine to trim it into standard-sized boards or custom dimensions.
Quality Inspection: Check the boards for thickness uniformity, surface defects (e.g., scratches), and mechanical properties (e.g., impact resistance) before packaging and storage.
Our polycarbonate sheet production process adopts advanced extrusion technology and strict quality control systems to ensure high performance, durability, and consistent product quality. From raw material selection to final inspection, every step is carefully managed to produce premium polycarbonate hollow sheets, solid sheets, and corrugated sheets for various architectural and industrial applications.
1. Raw Material Preparation
We use 100% virgin polycarbonate resin as the main raw material, combined with high-quality UV protection additives and functional modifiers. The raw materials are carefully tested and prepared to ensure excellent impact resistance, weather resistance, and long service life.
2. Material Drying and Mixing
Before extrusion, polycarbonate raw materials are dried to remove moisture and mixed evenly with UV stabilizers and other additives. This process improves the sheet’s transparency, strength, and outdoor performance.
3. Extrusion Process
The prepared polycarbonate material is melted and extruded through a high-precision extrusion machine under controlled temperature conditions. Advanced extrusion technology ensures uniform thickness, smooth surface, and stable product dimensions.
For different products:
Polycarbonate Hollow Sheets are formed through special multi-wall extrusion technology to create excellent thermal insulation performance.
Polycarbonate Solid Sheets are produced with a compact structure, providing outstanding impact resistance and high transparency.
Corrugated Polycarbonate Sheets are shaped through professional forming equipment to achieve excellent strength and easy installation for roofing applications.
4. UV Coating Treatment
A UV protective layer is co-extruded onto the surface of polycarbonate sheets to prevent aging, yellowing, and degradation caused by long-term sunlight exposure. This ensures reliable performance in outdoor environments.
5. Cooling and Shaping
After extrusion and UV treatment, the sheets pass through a cooling and shaping system to maintain precise dimensions, flatness, and surface quality.
6. Cutting and Surface Protection
The finished polycarbonate sheets are cut according to customer requirements. Protective films are applied on both sides to prevent scratches and damage during transportation and installation.
7. Quality Inspection
Each batch of polycarbonate sheets undergoes strict quality inspection, including thickness measurement, impact resistance testing, light transmission testing, UV protection testing, and appearance inspection to ensure compliance with international standards.
8. Packaging and Delivery
After passing quality inspection, the polycarbonate sheets are carefully packaged with protective materials and prepared for shipment worldwide. We provide customized sizes, colors, and solutions to meet different roofing, greenhouse, skylight, and construction requirements.
oem/odm
The OEM (Original Equipment Manufacturer) model for PP plastic plates has become a preferred cooperation method for many enterprises due to its flexible adaptability and resource integration capabilities, with core advantages focusing on the following four aspects:
1. Precisely meeting personalized needs for diverse application scenarios
PP plastic plates are used in multiple fields such as chemical industry, construction, and food industry, where requirements for plate specifications (thickness, size), performance (flame retardant grade, acid and alkali resistance), and appearance (color, surface texture) vary significantly. The OEM model enables customized production according to customer needs, eliminating the need for customers to adjust production lines themselves and achieving the flexibility of "customization on demand".
2. Lowering production entry barriers and reducing enterprise operating costs
The production of PP plastic plates requires investment in professional equipment such as extruders, calendering equipment, and cutting units, as well as a technical team to control key parameters like melting temperature (180-220℃) and calendering pressure, resulting in high initial fixed asset investment and later maintenance costs. By choosing the OEM model, customers do not need to purchase production equipment or build a technical team. They can focus funds and energy on core businesses (e.g., product design, marketing) and reduce unit production costs through bulk OEM, avoiding resource waste caused by equipment idleness and production capacity loss.
3. Ensuring stable product quality with professional production experience
Formal PP plate OEM manufacturers have mature production processes (e.g., raw material proportioning, melt extrusion, quality inspection) and rich technical accumulation to strictly control product quality. On one hand, they ensure the performance of PP plates meets standards by accurately controlling the proportion of additives (anti-aging agents, flame retardants); on the other hand, they reduce product defect rates through standardized quality inspection links (thickness uniformity check, surface defect screening, impact performance test). Compared with in-house production, the OEM model can more stably produce PP plates that meet industry standards or specific customer requirements, reducing quality risks.
4. Shortening production cycles and improving market response efficiency
When customers face urgent orders or fluctuating market demand, OEM manufacturers can quickly adjust production capacity relying on large-scale production capabilities and mature supply chain systems. Meanwhile, the OEM model supports small-batch trial production, facilitating customers to quickly verify market feedback on products and adjust specifications or performance in a timely manner, thus improving the response speed to market changes.
OEM means we produce strictly according to your specifications,
- Customize sheet thickness, width, cut-to-length size, colors (clear, bronze, blue, etc.) and co-extruded UV layer.
- Print your brand logo on PE protective film,
- Available for polycarbonate hollow sheets, solid polycarbonate sheets and corrugated PC sheets-
ODM Service
ODM means we develop products based on your application & performance requirements. Our engineering team handles formula selection, profile design, mold development and sample testing.
- Develop custom corrugated profiles, special Twin-wall Polycarbonat Hollow structures, custom solid sheet thickness.
- Custom functional formula: flame retardant, anti-static, high light transmission, low temperature resistant PC sheets.
- One-stop solution: proposal → sample making → performance testing → mass production.
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Customization Options
- Dimensions: thickness, width, any custom cutting length
- Colors: clear, bronze, blue, and customized
- Functions: co-extruded anti-UV layer, flame retardant, anti-drip
- Branding: logo printing on PE film
R&D
1. Innovation in Environmental Protection and Sustainability
Centering on "full-lifecycle environmental protection", the raw material sector focuses on the recycling and modification of PP waste (e.g., industrialization of glass fiber-reinforced recycled PP). The process sector has made breakthroughs in formaldehyde-free technology (e.g., "paperless direct lamination technology" to eliminate formaldehyde). Meanwhile, the utilization of solid waste as resources is further deepened to reduce raw material consumption and carbon emissions.
2. High-Performance Modification and Functional Upgrading
To address the shortcomings of traditional PP plates, basic performance is enhanced through transparent modification (three technical routes) and high melt strength modification (HMSPP). At the same time, functional compounding is promoted—for example, ultra-thin PP ceramic plates achieve weight reduction and bendability while maintaining core performance, expanding high-end application scenarios.
3. Process Innovation and Scenario Adaptation Optimization
Molding processes (microporous technology) and finishing processes (integrated "paperless direct lamination") are continuously innovated. Meanwhile, customized production lines are optimized to flexibly adjust the thickness, texture, and functional properties of plates, adapting to the needs of diverse fields.
4. Expansion of Application Scenarios and Form Innovation
Relying on technological breakthroughs, cross-field penetration is achieved in construction (thin plates), new energy (microporous membrane PP plates), and medical care (antibacterial transparent PP plates). At the same time, form innovation (mass production of large-sized plates) is promoted to support new application models and improve construction efficiency.
Our company focuses on the R&D innovation of polycarbonate sheets, covering three main product lines: Twin-wall polycarbonate hollow sheets, solid polycarbonate sheets and corrugated PC roof sheets.
Our R&D team continuously optimizes PC raw material formulation, co-extruded anti-UV technology, sheet structure and forming molds. For different application scenarios such as outdoor roof daylighting, greenhouses, carports and factory buildings, we carry out various performance tests including weathering aging, impact resistance, flame retardancy, light transmittance and anti-condensation.
For Twin-wall polycarbonate hollow sheets, our R&D team optimizes hollow rib structures to improve thermal insulation and load-bearing capacity. For solid PC sheets, we keep improving internal stress control technology to reduce cracking risks under temperature cycling. For corrugated PC sheets, custom wave profiles, wave pitch and wave height can be developed to fit different roof installation systems.
Equipped with a complete R&D laboratory, we can rapidly complete new product sampling, performance testing and process adjustment. We support ODM development of functional sheets, such as flame-retardant, high-transmittance, and anti-drip PC sheets, to meet differentiated project requirements for global customers.
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