Views: 222 Author: Amanda Publish Time: 2025-06-26 Origin: Site
Content Menu
● The Legacy and Scale of Guangdong Jinhui
● Step-by-Step Knife Forging Process at Guangdong Jinhui
>> 1. Raw Material Selection and Preparation
>> 3. Heat Treatment: Quenching and Tempering
>> 5. Handle Assembly and Finishing Touches
>> 6. Quality Assurance and Testing
● Advanced Technology and Skilled Craftsmanship
● Environmental and Social Responsibility
● FAQ
>> 1. What materials does Guangdong Jinhui use for their knives?
>> 2. How does Guangdong Jinhui ensure the sharpness of their knives?
>> 3. What heat treatment techniques does Guangdong Jinhui apply?
>> 4. Does Guangdong Jinhui manufacture knives for other brands?
>> 5. How does Guangdong Jinhui maintain quality control?
Guangdong Jinhui Knife & Scissors Incorporated Company Ltd., established in 1989, stands as a leading high-tech enterprise specializing in the OEM production of stainless steel kitchen knives for international brands, wholesalers, and manufacturers. Covering nearly 130,000 square meters and employing over 1,000 skilled staff, Guangdong Jinhui combines advanced technology with craftsmanship to produce forged knives that are renowned worldwide for their quality, style, and durability.
This article takes you behind the scenes of Guangdong Jinhui's knife forging process, revealing the intricate steps from raw steel to finished product. Along the way, we explore the factory's advanced machinery, skilled workforce, and quality control measures that ensure every knife meets international standards.
Founded over three decades ago, Guangdong Jinhui has grown into a powerhouse in knife manufacturing. The company's modern factory, built in 2012, houses over 1,000 employees, with 65% being technical personnel and 3.5% development experts. Equipped with more than 1,000 advanced machines, the factory operates under rigorous quality management systems, including ISO9001:2008 certification and 6 Sigma management practices, ensuring consistent excellence.
Their product range includes chef knives, steak knives, bread knives, butcher knives, kitchen shears, and scissors, all made from premium stainless steel. Guangdong Jinhui exports to over 48 countries, including the USA, Europe, Southeast Asia, and the Middle East, earning numerous accolades for quality and innovation.
The journey of a Guangdong Jinhui knife begins with the selection of high-quality stainless steel. The steel is carefully chosen for its durability, corrosion resistance, and ability to hold a sharp edge. The raw steel billets are cut to size and prepared for forging.
The factory sources stainless steel grades that meet international standards, such as 440C, VG10, or AUS-8, depending on the client's specifications. Each batch undergoes chemical composition analysis to guarantee consistency in hardness and corrosion resistance. The billets are then cleaned and inspected for any impurities that could affect the forging process.
The steel billets are heated in industrial forges to temperatures exceeding 1,100°C (2,012°F), making the metal malleable and ready for shaping. This intense heat allows the steel to be shaped without cracking or compromising its structural integrity. The heated billets are then placed under power hammers or forging presses that shape the blade's rough outline, tapering the steel to form the blade's spine, edge, bolster, and tang.
This forging process is repeated multiple times to ensure the blade's shape is precise and the metal structure is dense and uniform. The forging also blends the steel's grain, enhancing strength and flexibility. This grain refinement is crucial as it improves the blade's toughness and resistance to wear.
The forging machines are equipped with programmable controls, allowing for consistent pressure and shaping, which reduces human error and increases production efficiency. Skilled operators monitor the process closely to adjust parameters as needed for different knife designs.
After forging, the blades undergo a sophisticated heat treatment process to optimize hardness and toughness.
- Quenching: The blades are reheated to around 750°C - 800°C and rapidly cooled in water or oil. This process hardens the steel, increasing its ability to hold a sharp edge. The choice between water or oil quenching depends on the steel grade and desired hardness.
- Tempering: To reduce brittleness caused by quenching, the blades are reheated to a lower temperature (around 200°C) and cooled slowly. This step balances hardness with flexibility, ensuring the knife is durable and resistant to chipping.
Guangdong Jinhui has mastered advanced heat treatment techniques, including sub-zero treatment, which was once thought difficult for Chinese enterprises to achieve. This innovation involves cooling the blade to sub-zero temperatures after quenching to transform retained austenite into martensite, further enhancing blade hardness and edge retention.
The company employs computer-controlled furnaces that maintain precise temperature control, ensuring uniform heat treatment across every blade. This consistency is vital for maintaining high-quality standards across large production volumes.
Once heat treated, the blades enter a multi-stage grinding process designed to refine the blade's shape and edge.
- Rough Grinding: Defines the blade's bevel and edge angle. This stage removes excess material and shapes the blade according to design specifications.
- Fine Grinding and Polishing: Smooths the blade surface, removing imperfections and preparing it for sharpening. Polishing also enhances corrosion resistance and aesthetic appeal.
- Sharpening: Using whetstones and precision machinery, the blade edge is honed to a razor-sharp finish. This step is critical for performance and user safety.
Guangdong Jinhui utilizes CNC grinding machines that can achieve complex blade geometries with high repeatability. The sharpening process is carefully controlled to maintain the ideal edge angle, which varies according to knife type (e.g., thinner edges for chef knives, thicker edges for butcher knives).
Experienced craftsmen perform final hand sharpening and polishing to ensure each blade meets the highest standards. This combination of machine precision and human skill results in knives that are both sharp and durable.
The blade is fitted with a handle, which may be welded, riveted, or molded depending on the design and material. Guangdong Jinhui uses ergonomic designs and durable materials such as pakkawood, stainless steel, polypropylene, and composite materials to ensure comfort, stability, and longevity.
Handle assembly includes precise fitting to ensure the blade and handle form a seamless, balanced unit. The tang is often full-length for strength and balance, especially in professional-grade knives.
Final polishing of the handle and blade is done to enhance aesthetics and grip. The knives then undergo sharpness testing and quality inspections before packaging. The company offers customized packaging solutions to meet client branding requirements.
Quality control at Guangdong Jinhui is meticulous and multi-layered. Each knife undergoes:
- Visual Inspection: Checking for surface defects, uniformity, and finish quality.
- Dimensional Inspection: Ensuring blade length, thickness, and handle dimensions meet specifications.
- Sharpness Testing: Using standardized tests to confirm edge sharpness and durability.
- Balance and Weight Testing: Ensuring ergonomic comfort and handling.
- Corrosion Resistance Testing: Simulating real-world kitchen conditions to verify stainless steel performance.
The company's adherence to international standards such as ISO9001:2008 and compliance with EU food contact regulations ensures that every knife is safe, reliable, and ready for global markets.
Guangdong Jinhui's success lies in its seamless integration of modern technology and traditional craftsmanship. Automated CNC machines, robotic polishers, and computer-controlled heat treatment furnaces handle precision tasks, improving efficiency and consistency.
At the same time, experienced artisans oversee critical steps such as final sharpening, handle fitting, and quality inspection. This human touch ensures that every knife not only meets technical standards but also delivers an exceptional user experience.
The factory's investment in research and development fosters continuous innovation. New steel alloys, ergonomic handle designs, and eco-friendly manufacturing processes are regularly tested and implemented, keeping Guangdong Jinhui at the forefront of the kitchen knife industry.
Guangdong Jinhui is committed to sustainable manufacturing practices. The factory employs waste reduction measures, recycles steel scraps, and uses energy-efficient equipment to minimize environmental impact. Worker safety and welfare are prioritized, with regular training and a supportive work environment.
The company also actively supports local communities through charitable initiatives and skills development programs, reinforcing its role as a responsible corporate citizen.
Guangdong Jinhui Knife & Scissors Incorporated Company Ltd. exemplifies the fusion of traditional forging techniques and modern manufacturing technology. Their dedication to quality, innovation, and craftsmanship has positioned them as a trusted OEM partner for international kitchen knife brands.
From raw steel to finished product, each step in their forging process is carefully controlled to produce knives that combine durability, sharpness, and aesthetic appeal. Their commitment to advanced heat treatment, precision grinding, and rigorous quality control ensures that every knife leaving their factory is a tool chefs worldwide can rely on.
Guangdong Jinhui primarily uses high-quality stainless steel known for its corrosion resistance, durability, and ability to maintain a sharp edge. They also employ advanced steel treatments to enhance performance.
They use a multi-stage grinding and sharpening process involving rough grinding, fine polishing, and honing with whetstones and precision machinery. Final sharpness tests guarantee performance standards.
The company uses quenching and tempering processes, including advanced sub-zero treatments, to balance hardness and toughness in the blades, ensuring durability and resistance to chipping.
Yes, Guangdong Jinhui specializes in OEM services, producing kitchen knives for various international brands, wholesalers, and manufacturers, providing customized solutions.
They implement 6 Sigma management, ISO9001:2008 certification standards, and rigorous inspections at every production stage, including defect checks, sharpness testing, and compliance with international safety regulations.
