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Injection Mold Cooler Box Factory

Injection Mold Cooler Box

Injection-molded coolers utilize food-grade PP and are produced through a high-precision injection molding process. They are lightweight, durable, compact, and aesthetically pleasing. Filled with a high-density polyurethane (PU) foam layer, they provide excellent insulation for 3–5 days, making them suitable for daily travel, family gatherings, short camping trips, and commercial deliveries. Compared to rotationally molded products, injection-molded coolers are lighter and more cost-effective, making them suitable for mass production and market promotion. Their practical design features reinforced handles, sealing strips, and drain outlets. Some models can be equipped with wheels and cup holders for easy portability. Their lightweight, economical, and practical features make them an ideal choice for both daily life and commercial use.

About Us
Ningbo Nelgreen Outdoor Products Co., Ltd.
Ningbo Nelgreen Outdoor Products Co., Ltd.
Ningbo Nelgreen Outdoor Products Co., Ltd. was established in May 2023 with a registered capital of 3.88 million yuan. Its subsidiaries include Yuyao Longyu Rubber Products Co., Ltd. and Yuyao Ziming Electronics Trading Co., Ltd., a sales center. As a famous China Injection Mold Cooler Box Manufacturers and Injection Mold Cooler Box Factory, located at No.6 Guantong Road, South District, Xiaocao'e Town Industrial Park, Yuyao City, Zhejiang Province, the company covers an area of 10,000 square meters and employs approximately 100 people. The company specializes in plastic mold design, production, and product processing, and is a leading provider of this industry-leading product. Our main products include various seafood coolers, ice buckets, vehicle coolers, roto-molded coolers, and other outdoor equipment and related parts. We also offer OEM and ODM services.
As a professional manufacturer of rotational molding outdoor products, the company takes independent research and development as its core, equipped with multiple shuttle rotational molding machines and polyurethane high-pressure foaming machines and other advanced equipment. The annual production capacity reaches 400,000 rotational molding products, with an annual output value exceeding 150 million yuan. Our main products include refrigerated boxes, vehicle-mounted refrigerated boxes, seafood refrigerated boxes, and various related parts and accessories, specifically designed for fishing, camping, hunting, and seafood transportation. We use imported food-grade LLDPE as raw materials, which are non-toxic, odorless, environmentally friendly, and safe, with stable performance. We have an independent research and development mold factory to support customized production. The inner layer of the insulation box is injected with PU foaming material, which has a strong heat insulation, heat preservation, and shock absorption effect, and the physical insulation performance reaches the industry-leading level. The product can maintain its insulation for 120 hours. It adopts a seamless one-piece molding process and has passed SGS and CE certifications, strictly adhering to FDA and EU standards. From raw material procurement to finished product delivery, the entire process is subject to quality control.
Our R&D team has over 15 years of rich experience in the field of rotational molding products and has applied for 6 product patents. The number of factory employees has exceeded 100. Strict management and quality control have enabled us to take the leading position in the industry. In addition, the experienced sales team can provide customers with a variety of solutions and high-quality services.
Our company's products are mainly targeted at the mid-to-high-end market. With the advantages of high quality and high cost performance, they are popular overseas, including the United States, Canada, Australia, Spain, Mexico, Japan, Southeast Asia and other countries, and have received high praise. Since its establishment, our company has always adhered to the development policy of "Quality builds brand, service wins future", and is committed to becoming the best manufacturer of insulated boxes at home and abroad. We sincerely welcome customers from home and abroad to visit and guide us!
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Design Features and Functionality of Injection Mold Cooler Boxes
The cooler box's durability is a defining factor in its overall performance. The harsh environments encountered during outdoor activities require products that can withstand physical stress, temperature extremes, and exposure to various elements. At Ningbo Nelgreen Outdoor Products Co., Ltd., we ensure that our injection mold cooler boxes are built with high-impact materials that are engineered to last. The use of high-quality food-grade LLDPE (Linear Low-Density Polyethylene) contributes significantly to the overall toughness of our products. LLDPE is known for its resilience against cracking, bending, and warping, ensuring that our cooler boxes maintain their structural integrity even in demanding conditions. Whether it's being dragged across rough terrain, knocked over, or exposed to intense UV rays, our cooler boxes remain functional and aesthetically intact. The robust construction of our cooler boxes also prevents damage from extreme cold or heat, making them ideal for use in diverse climates. The injection molding process allows for precise control over material distribution, providing consistent strength throughout the cooler's design. In addition to the outer shell's durability, our cooler boxes' interior is designed to maintain a clean and hygienic environment for food and drinks. Our manufacturing process ensures that the cooler box is tough enough to handle frequent usage while also offering protection against contaminants. At Ningbo Nelgreen Outdoor Products Co., Ltd., we understand that a cooler box must endure the roughest handling without compromising on its ability to preserve the temperature of the contents inside.

The efficiency of a cooler box relies heavily on its ability to prevent temperature loss. Traditional coolers, which often use seams and joints, are prone to leaks and weak points where air can escape. Our cooler boxes, designed by Ningbo Nelgreen Outdoor Products Co., Ltd., feature a seamless one-piece molding process that eliminates such vulnerabilities. This continuous construction ensures that no part of the cooler box is prone to leaking, giving it better thermal insulation performance compared to other cooler boxes on the market. By using the one-piece molding method, we create a solid, durable structure that enhances the product's ability to retain cold or warm temperatures for extended periods. With no seams or joints, there are fewer opportunities for air to escape or for moisture to penetrate the box. The absence of seams also improves the structural integrity of the cooler box, making it more resistant to impacts and wear over time. The one-piece design guarantees that our cooler boxes perform consistently, maintaining their thermal properties and providing users with a reliable solution for keeping food and beverages at the desired temperature. Ningbo Nelgreen Outdoor Products Co., Ltd. takes pride in this advanced manufacturing technique, which elevates the insulation capabilities of our cooler boxes. The seamless design not only contributes to the product’s durability but also ensures that it maintains a high level of functionality, even under extreme conditions. For customers who need reliable, long-lasting coolers, the seamless design is a crucial feature that ensures performance over time.

The primary function of a cooler box is to maintain the internal temperature, and this is where insulation technology plays a pivotal role. At Ningbo Nelgreen Outdoor Products Co., Ltd., we have adopted advanced polyurethane (PU) foaming techniques to ensure superior thermal insulation for our cooler boxes. PU foam has excellent insulating properties, preventing the flow of heat and ensuring that the contents of the cooler stay at the required temperature for longer periods. The PU foam is injected into the walls of the cooler box, creating a thick layer of insulation that provides significant resistance to both heat and cold. This not only helps in keeping ice frozen for extended periods but also ensures that cold drinks and perishables are preserved efficiently. Our use of PU foam also helps in reducing the weight of the cooler boxes while maintaining excellent insulating properties, offering a lightweight but highly effective solution for outdoor storage. The PU foam provides shock-absorbing capabilities that protect the contents from damage during transport. Whether it’s fragile seafood, meat, or beverages, our cooler boxes ensure that the contents are cushioned against physical impacts. The strong insulating performance of the foam also contributes to the overall efficiency of the cooler box, allowing users to enjoy longer trips without the need to constantly replenish ice or refrigerants. At Ningbo Nelgreen Outdoor Products Co., Ltd., we continue to improve the insulation technology in our cooler boxes to ensure that our products remain at the forefront of the industry, offering customers long-lasting cooling solutions that are both effective and reliable.

While insulation and durability are crucial, convenience is equally important for any outdoor product. Our cooler boxes feature ergonomically designed handles and latches that make handling and securing the cooler easy, even during strenuous activities. The handles on our coolers are molded for comfort and reinforced for strength, allowing users to carry heavy loads without straining their hands or arms. The latches on our cooler boxes are designed to provide a secure and tight seal while also being easy to operate. Made from high-quality materials such as stainless steel or durable plastics, these latches provide a reliable closure that prevents cold air from escaping and ensures the contents of the cooler stay fresh. At Ningbo Nelgreen Outdoor Products Co., Ltd., we focus on user-friendly designs that improve the overall experience of using the cooler box. The simple, yet effective latching system offers secure closure while ensuring that the box can be opened and closed without difficulty. Our cooler boxes are also equipped with additional features such as side handles for easier lifting and carrying, ensuring that moving the cooler from one location to another doesn’t become a hassle. Whether you’re unloading the cooler from a vehicle, carrying it over sand dunes, or securing it on a boat, our ergonomic design features provide comfort and efficiency.

Outdoor products are constantly exposed to the sun, which can cause degradation over time, leading to cracking, fading, and reduced functionality. Our injection mold cooler boxes are built to withstand the elements, thanks to the UV-resistant materials used in their construction. The high-quality LLDPE and other materials selected by Ningbo Nelgreen Outdoor Products Co., Ltd. are specifically designed to resist the damaging effects of ultraviolet rays. This ensures that the exterior of the cooler box remains intact, maintaining its color and strength even after prolonged exposure to the sun. UV resistance is essential not only for aesthetic reasons but also for the overall longevity of the cooler box. Cooler boxes subjected to continuous UV exposure can experience a breakdown of their material structure, leading to brittleness and eventual failure. Our UV-resistant cooler boxes, however, are built to last. The high-performance seals on our products also enhance their insulation capabilities. These seals create an airtight and watertight barrier, preventing any external temperature changes from affecting the internal contents of the cooler. Whether you’re using the cooler for fishing trips in sunny weather or storing food in a hot climate, the UV-resistant properties of our cooler boxes help preserve both their appearance and performance over time. At Ningbo Nelgreen Outdoor Products Co., Ltd., we ensure that our cooler boxes are built to last, offering reliable protection against UV damage, moisture, and heat.

At Ningbo Nelgreen Outdoor Products Co., Ltd., we recognize that not all outdoor adventures are the same, and therefore, not all cooler boxes should have the same storage configuration. Our injection mold cooler boxes are designed with versatility in mind, offering a range of customizable storage solutions to meet the specific needs of our customers. Whether you are packing for a weekend camping trip, a multi-day fishing expedition, or a hunting adventure, we provide options that help you organize your goods efficiently. Our cooler boxes come with features such as adjustable dividers, built-in trays, and removable sections that allow you to separate different types of food or beverages. This customization ensures that your items are organized, and it prevents items from getting crushed or damaged during transit. For example, if you are transporting delicate seafood, our cooler boxes can be equipped with a separate compartment that keeps it away from other items, preserving its quality and freshness. We offer cooler boxes in various sizes and shapes to cater to different needs. Whether you need a compact cooler for personal use or a larger model for group outings, our products can be customized to suit your requirements. At Ningbo Nelgreen Outdoor Products Co., Ltd., our goal is to provide products that make storage and transportation more convenient for every type of user, enhancing the overall outdoor experience.
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