Henghui Precision Mold Co., Ltd. specializes in Cold Heading dies for "mold Screws," covering various cavity "Fastener Molds" including triangular, hexagonal, and tapered rod shapes. Available in tungsten steel or alloy steel, these molds offer multiple production lines, long lifespan, and quick interchangeability. They are already being supplied in bulk for automotive wheel hub Bolts and high-strength nuts for wind power applications.

Henghui Precision Mold Co., Ltd.

Henghui Precision Mold Co., Ltd. was founded in 2009 and currently operates three production bases in Dongguan, Guangdong, Jiaxing, Zhejiang, and Chongqing. As a specialized manufacturer, we focus on develoPing, producing, and distributing various tungsten carbide molds for industries such as precision electronics, communications, automotive, aerospace, and more.

Our products, including screw and Nut fastener molds, as well as various Stamping and stretching tungsten carbide molds, are manufactured using high-precision CNC equipment, advanced testing devices, and cutting-edge processing techniques to ensure impeccable accuracy. Supported by a team of technical engineers with extensive design experience and skilled technicians and quality inspectors, we adhere to ISO 9001 quality management system and ERP system management standards.

Email: hou@citool.com

Web: tungstencarbide-die.com

Tel: +86 13657605002

Contacts: Hui Hou

Address: 2nd Floor, No. 3, Building 9, Sundi Times Industrial Base, No. 1 Sundi Avenue, Xipeng Town, Jiulongpo District,

WhatsApp：+86 13983025528/+86 17396225108

In Chongqing, a major industrial city in southwest China, the confluence of the Yangtze and Jialing Rivers not only nurtured the city's grandeur but also fostered Heng Hui Precision Mold Co., Ltd., a company deeply rooted in the field of cold forging molds for many years. Stepping into their production workshop, you'll see rows of precision five-axis machining centers operating at high speed, metal cutting fluid drawing intricate arcs under the lights. At the output of these modern machines are Nut molds, crucial for industrial connection safety. These molds, seemingly just hard metal blocks, actually contain the magical code that instantly transforms metal wire into precision nuts.

Heng Hui's understanding of Nut molds has long surpassed the simple concept of a "metal container." In their view, each set of nut molds is a miniature metal sculpture workshop, requiring precise control of the metal's flow direction, filling speed, and final shape under high pressure. Especially for products with complex geometries like Hexagonal Nuts, traditional monolithic molds often suffer from poor venting. When metal fills the closed cavity at high speed, trapped air forms bubbles or air marks, affecting not only the nut's appearance but also shortening the mold's lifespan. To solve this industry-wide problem, Heng Hui's technical team spent years developing a unique six-piece modular mold core technology. This technology breaks down the traditional monolithic mold core into six independent fan-shaped components, precisely assembled like flower petals. This ensures molding accuracy while providing microscopic channels for gas escape, allowing the metal to "breathe" during flow, thus significantly improving product density and mold durability.

In material selection, Heng Hui demonstrates an unwavering pursuit of ultimate performance. They understand that nut molds must withstand the immense impact of cold Heading Machines and the high-temperature friction generated during metal deformation, making ordinary steel unsuitable. Therefore, the company selects high-quality imported tungsten steel and special alloy tool steel, employing professional vacuum heat treatment processes to endow the mold surface with extremely high hardness and wear resistance, while maintaining the toughness of the core to prevent cracking under millions of impacts. This "hard on the outside, tough on the inside" characteristic allows Heng Hui's molds to maintain dimensional stability during high-speed continuous production. Whether producing ordinary carbon steel nuts or high-strength titanium alloy or Stainless Steel Nuts, it ensures that every formed hexagonal facet is clearly defined, and every internal thread meets stringent precision standards.

Heng Hui's nut molds not only serve conventional Fastener production but are also making their mark in high-end manufacturing. The aerospace industry has extremely demanding requirements for nuts, needing to maintain reliable connections under extreme temperatures, strong vibrations, and corrosive environments. To address this, Heng Hui developed molds specifically for forming titanium alloy nuts. Through precise temperature control design and special surface treatment, it solves the cracking and sticking problems that easily occur in high-strength materials during cold heading. In the automotive manufacturing sector, with the dual pursuit of lightweighting and safety in new energy vehicles, Heng Hui's molds help produce high-performance nuts that are both lightweight and strong, used in critical components such as battery packs and motor housings. These molds are not only production tools but also a guarantee connecting modern industrial safety and efficiency.

From design drawings to final delivery, Heng Hui has established a complete quality assurance system. Every set of nut molds undergoes rigorous hardness testing, dimensional measurement, and trial molding verification before leaving the factory to ensure perfect matching with the customer's cold Heading Machine. The company has also established a rapid-response after-sales service network, ensuring timely technical support and mold maintenance guidance regardless of the customer's location. This focus on the entire lifecycle has forged a deep bond of trust between Heng Hui and its customers.

In today's fastener industry, which is developing towards higher precision and higher strength, Heng Hui Precision Mold Co., Ltd., with its focus and research on nut molds, interprets the profound meaning of "precision manufacturing." The nuts that emerge continuously from their molds, though ultimately disappearing into car chassis, aircraft structures, or the interiors of precision instruments, are precisely these unseen connection points that bear the weight of modern industrial civilization. What Heng Hui does is provide the most reliable forming tools for these critical connections, safeguarding the moment each nut is born within a six-piece, petal-shaped mold core, with micron-level machining precision.