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Injection Molding/Rotomolding Molds

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We are committed to providing customers with integrated rotational molding solutions. Our services cover product development, mold design, manufacturing, and testing, enabling us to tailor a wide range of rotomolding molds to meet specific requirements. These molds are widely used in cooler boxes, fish tubs, water tanks, traffic facilities, playground equipment, and military cases. By using high-quality steel and precision machining technology, we ensure high strength, long service life, and excellent molding efficiency. With strict quality control, our molds deliver stable and reliable performance.

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 Molding Molds Manufacturers and Rotational Molding Molds Suppliers, 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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Advantages of Injection Molding/Rotomolding Molds for Custom Outdoor Equipment
One of the key advantages of using Injection Molding/Rotomolding Molds in the production of custom outdoor equipment is the ability to create highly durable products. Outdoor equipment such as coolers, ice buckets, and fishing gear are frequently exposed to harsh conditions like extreme temperatures, rough handling, and prolonged use. As a result, these products must not only meet the aesthetic demands of the market but also provide superior performance under extreme physical stress. At Ningbo Nelgreen Outdoor Products Co., Ltd., we understand the unique demands placed on outdoor products. By utilizing advanced injection molding and rotomolding technologies, we are able to create products that are structurally sound, impact-resistant, and long-lasting. Injection molding allows us to produce intricate and precise shapes with consistent wall thicknesses, which enhances the strength and durability of our products. Meanwhile, rotomolding produces hollow, seamless products that are highly resistant to cracking, fading, and wear, even under heavy usage. Through these advanced molding processes, we ensure that each custom product, such as our roto-molded coolers and vehicle-mounted refrigerated boxes, is able to withstand the rigors of outdoor use. Whether used in extreme heat, sub-zero temperatures, or exposed to direct sunlight for hours, our products are designed to remain functional and durable over time.

Custom outdoor equipment requires versatility in design to meet the varying needs of different outdoor activities. Injection Molding/Rotomolding Molds offer unparalleled flexibility in creating complex and highly customized shapes that would be difficult to achieve with other manufacturing methods. This capability is especially important in the production of outdoor products, where functionality often requires unique shapes and sizes. At Ningbo Nelgreen Outdoor Products Co., Ltd., we take full advantage of this flexibility to deliver bespoke solutions to our clients. For instance, rotomolding enables us to create products with thick, uniform walls that provide superior insulation, making our coolers ideal for long-duration outdoor activities such as fishing or camping. These molds also allow us to design features like recessed handles, ergonomic grips, and compartments tailored to specific uses, all while maintaining high structural integrity. Injection molding, on the other hand, excels at producing precise, small to medium-sized parts with intricate features. This is particularly beneficial when designing accessories and components for larger outdoor products. Whether it's a specialized lid for a cooler or a component for a vehicle-mounted refrigerated box, our injection molding process ensures every part is crafted with precision and consistency. We can also work with our clients to create completely custom designs, whether it’s for a particular outdoor niche or a unique brand identity. The ability to customize the size, shape, color, and texture of our molded products allows us to cater to a wide range of outdoor applications and customer preferences.

Injection molding and rotomolding are both highly cost-effective manufacturing methods, especially when it comes to producing large quantities of custom outdoor equipment. Ningbo Nelgreen Outdoor Products Co., Ltd. is committed to offering high-quality products at competitive prices. The initial investment in mold creation may be significant, but the cost per unit decreases substantially as the production volume increases. With injection molding, the ability to produce large batches of identical parts at a rapid pace ensures efficiency in mass production. This makes injection molding particularly suitable for outdoor products like ice buckets, coolers, and containers, where uniformity and speed are critical. We are able to pass these cost savings on to our customers, providing them with durable, high-quality outdoor products at a lower cost per unit. Similarly, rotomolding allows for the production of large, hollow products with minimal waste, which is ideal for custom outdoor equipment. The process involves placing a material into a mold and rotating it slowly to evenly distribute the material around the mold’s interior. This method produces a seamless, uniform product with a strong structure and no joints, which reduces the need for secondary processes like welding or sealing. The cost savings gained from the reduced material waste and streamlined production process make rotomolding an excellent choice for large-scale manufacturing of products like coolers and refrigerated boxes. By combining the strengths of both injection molding and rotomolding, we at Ningbo Nelgreen Outdoor Products Co., Ltd. are able to provide cost-effective, high-performance products that meet the needs of our diverse client base while maintaining competitive pricing.

One of the primary concerns for outdoor products such as coolers and refrigerated boxes is the ability to maintain temperature control. Whether it’s keeping seafood fresh during transport or storing drinks cold during a long camping trip, insulation is a critical feature that cannot be overlooked. The use of Injection Molding/Rotomolding Molds allows us to incorporate advanced insulation techniques that significantly improve the thermal performance of our products. At Ningbo Nelgreen Outdoor Products Co., Ltd., we utilize rotomolding to produce seamless, insulated products with thicker walls that offer superior heat retention and cold preservation. Our roto-molded coolers, for example, are designed to maintain a low temperature for up to 120 hours, making them ideal for outdoor activities that require long-lasting cooling solutions. The seamless construction of these products also eliminates the risk of leaks, ensuring that the insulation remains intact throughout the product’s lifespan. We also incorporate polyurethane (PU) foaming materials in the insulation layer of our products, further enhancing the temperature control capabilities. The PU foam injected into our coolers, ice buckets, and refrigerated boxes provides an additional layer of thermal resistance, improving both heat insulation and shock absorption. This ensures that our custom products are not only efficient at maintaining temperature but also highly resistant to damage from impacts, making them perfect for rugged outdoor environments.

Time-to-market is crucial in the fast-paced outdoor equipment industry. Injection Molding/Rotomolding Molds enable us to streamline our production process, ensuring faster lead times without compromising on quality. The high efficiency of these molding techniques allows Ningbo Nelgreen Outdoor Products Co., Ltd. to quickly produce large quantities of custom outdoor products while maintaining the precision and durability that our customers expect. With injection molding, the ability to produce parts rapidly means we can meet tight deadlines and respond quickly to customer demands. Whether it's a new cooler design or a special batch of customized equipment, our injection molding process allows us to complete production faster than traditional methods. This makes it easier for us to deliver large orders on time and scale production to meet seasonal demands. In rotomolding, the process is also relatively quick, especially for larger products, due to its simple yet efficient nature. We can produce complex, multi-part molds that can be assembled into complete products in a shorter time frame. This efficient process is particularly advantageous when working with custom orders that require a high degree of design flexibility and functional performance. By maintaining an efficient production workflow, Ningbo Nelgreen Outdoor Products Co., Ltd. ensures that our clients receive high-quality, custom outdoor products with minimal delays, making us a trusted partner in the industry.
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