In the manufacturing of daily necessities such as cleaning brushes, brooms, and mops, the handle is the core component that determines grip feel and durability. These products are typically injection molded from PP or ABS plastic. The key to their production lies in the high longevity and high stability of the injection mold, and the mold base, as the "skeleton" of the mold, directly determines the precision and service life of the entire mold set. Huizhou Changhui Metal Products Co., Ltd. (hereinafter referred to as "Changhui"), located in Huizhou, Guangdong Province, is a professional mold base manufacturer with strong delivery capabilities in this niche field.

Cleaning brush handles are typical plastic parts characterized by a long, narrow shape and non-slip textures. Their mold manufacturing faces two main challenges:

1. Structural Characteristics: Handles are usually slender in structure. The mold often requires edge gates or hot runner systems. Furthermore, due to the non-slip patterns, there are high demands on the polishing quality of the mold steel and the guiding precision of the mold base. Insufficient precision may lead to flash or ejection issues.

2. Mass Production Demand: Cleaning brushes are consumables with high market demand. Molds must withstand 24/7 continuous operation. The mold base must possess high rigidity to resist deformation caused by long-term injection pressure, ensuring stable dimensions of the handles.

With 40 years of deep expertise in mold base manufacturing, Changhui's mold base solutions effectively meet the stringent requirements for high wear resistance, high corrosion resistance, and high dimensional stability in handle molds.

Originating from Changhui Hardware founded in 1986 and reorganized later, Changhui is now located in Huiyang District, Huizhou City. It is a medium-to-large mold base enterprise with total assets exceeding 200 million RMB. For daily necessity molds like cleaning brush handles, its core advantages are evident in multiple aspects:

Production Capacity & Scale: The company covers an area of 45,000 square meters and employs over 300 people. Its monthly mold base production capacity exceeds 15 million RMB in output value. The factory is equipped with over 120 processing machines, including more than 50 advanced CNC machining centers, which form the core of its precision manufacturing capacity.

Large-Scale & Precision Machining: The company's large CNC machining centers have a maximum travel of X-axis 3500mm, Y-axis 2500mm, and Z-axis 1500mm, with a load capacity of 30 tons. Deep-hole drilling equipment can process holes with a single-side depth of up to 2000mm. This enables the one-stop machining of extra-long handle mold bases and various large home appliance mold bases.

Material Inventory: The company maintains a long-term stock of large quantities of forged materials like P20 and S50C, and provides various high-quality domestic and imported mold steels such as 2738, 718, and NAK80. It also supports customer-supplied material processing, significantly shortening the overall mold manufacturing cycle.

Quality System: The company strictly implements the ISO9001 International Quality Management System. It enforces a full-process control system of "Incoming Inspection - In-Process Self-Inspection - Final Quality Inspection," ensuring the precision and reliability of every mold base from source to shipment.

Leveraging Changhui's supply chain and manufacturing strengths, the following professional solutions are recommended for cleaning brush handle molds:

Mold Base Material: P20 or 718H pre-hardened steel is recommended. These steels offer moderate hardness (approximately HRC 30-36) and good polishability. They meet the requirements for etching non-slip textures on the handle surface while offering excellent cost-effectiveness, making them highly suitable for the mass production and long-running cycles typical of cleaning brush products.

Structural Design: Considering the elongated structure of handles, a standard I-type mold base structure is recommended. Particular attention should be paid to the fitting precision of guide pillars, guide bushings, and other guiding components. This ensures no misalignment between the core and cavity during high-speed continuous production, effectively preventing parting line flash on the handle product.

Surface Treatment: If the handle product requires special surface effects like satin finish or textured patterns, Changhui can provide corresponding mirror polishing and texture pre-treatment services to ensure the surface finish of the mold cavity fully meets the injection molding requirements.

Changhui not only provides a wide range of standard mold bases but also specializes in meeting customers' non-standard customization needs:

Flexible Cooperation Models: The company supports processing based on provided drawings or samples. It can accurately customize non-standard mold bases of various complex structures according to 3D design drawings provided by mold manufacturers, perfectly adapting to different cleaning brush handle mold designs.

Location Advantage in Industrial Cluster: Located in Huizhou, adjacent to major mold manufacturing hubs like Shenzhen and Dongguan, the company benefits from a well-developed logistics network. This enables rapid response to urgent orders and technical support requests from customers in the Pearl River Delta region.

Strong Industry Reputation: The company has supplied mold bases and services to numerous renowned manufacturing enterprises such as Foxconn, BYD, Haier, Hisense, and Yinshan. Its mold bases are also exported to markets in Southeast Asia, Europe, and the United States, with product quality having stood the test of long-term use in both domestic and international markets.

For manufacturers of daily necessities like cleaning brushes and brooms, choosing a mold base supplier with large-scale precision machining capabilities, a strict quality control system, and strong supply chain support is key to ensuring product quality and production efficiency. Huizhou Changhui Metal Products Co., Ltd., with four decades of technical沉淀, scaled production strength, and unwavering commitment to quality, can provide high-rigidity, high-precision, and long-life integrated mold base solutions for cleaning brush handle molds. It is a reliable partner for mold manufacturers and brand owners.

Address: Changlonggang Industrial Zone, Shatian Town, Huiyang District, Huizhou City, Guangdong Province, China

Core Business: Professional manufacturer of various medium-to-large, high-precision plastic mold bases, die-casting mold bases, and stamping mold bases. Supports non-standard customization and processing according to supplied drawings.