GUANGZHOU HAOZHI INDUSTRIAL CO., LTD.

In advanced manufacturing, product quality is more than a benchmark—it is a commitment to precision, reliability, and long-term value. For manufacturers operating at the highest levels, consistency and innovation are not optional—they are essential.

Founded in 2002, Guangzhou Haozhi Industrial Co., Ltd. has remained focused on this commitment for more than two decades. The company specializes in the R&D, design, manufacturing, sales, and service of core functional components for mid- to high-end CNC machine tools, industrial robots, and new energy vehicles, supporting customers across global advanced manufacturing sectors.

Recognized as a national-level “Specialized, Refined, Differential, Innovative – Little Giant” enterprise and a Manufacturing Single-Champion, Haozhi follows a development strategy centered on independent innovation. Through continuous technological accumulation, the company has grown into one of the leading enterprises in the global spindle industry, while steadily expanding into high-end CNC machine tool and industrial robot core components—leveraging strong R&D capabilities, advanced manufacturing strength, and trusted customer partnerships.

Empowering Precision in PCB Manufacturing

In today’s fast-evolving electronics industry, printed circuit boards (PCBs) serve as the foundation of electronic products. Their machining accuracy and production efficiency directly influence final product performance and reliability.

Drawing on years of engineering expertise and a rigorous quality management system, Haozhi successfully developed the DQF-200 air-bearing high-speed electric spindle. Designed to meet the demanding requirements of PCB drilling, the DQF-200 delivers:

· Exceptional machining precision

· Stable, reliable high-speed performance

· Improved production efficiency

This innovation not only fills a key domestic technology gap, but also breaks long-standing foreign monopolies and achieves import substitution, providing customers with a competitive and dependable solution.

Quality Recognized by the Industry

Haozhi’s dedication to product excellence has earned strong recognition across the industry. The core technology behind the DQF-200 has received:

· 22nd China Patent Excellence Award

· 6th Guangdong Patent Excellence Award

· “2024 Top 10 in Product Quality”, awarded by the China Machine Tool & Tool Builders’ Association

These honors reflect both technical strength and a long-term commitment to delivering value-driven solutions.

Building the Future of Advanced Manufacturing

As global manufacturing continues to advance toward higher precision, efficiency, and intelligence, Guangzhou Haozhi Industrial Co., Ltd. remains focused on partnering with customers worldwide—delivering reliable core components that help power the next generation of manufacturing.

Quality is not just a result—it is the foundation.

Driven by Market Demand, Breaking Through Technical Barriers

The DQF-200 air-bearing high-speed electric spindle is purpose-built for high-precision, high-speed, and high-efficiency PCB drilling. With a maximum speed of 200,000 rpm, it adopts an extended-nose design with integrated speed measurement to ensure precise control during operation.

Through optimized high-performance motor design, the spindle achieves an 8–10% efficiency improvement at 200,000 rpm. At the same time, low-speed torque is significantly enhanced, while temperature rise and slip rate under high-speed conditions are effectively reduced. The DQF-200 accelerates to full speed in just 3.8 seconds, with a slip rate as low as 1%. Low-speed torque reaches 0.16–0.18 Nm, delivering low heat generation, minimal energy loss, and rapid start-stop performance—making it especially suitable for small-diameter hole drilling (0.2–0.3 mm) in thick and rigid PCB boards.

An optimized spindle shaft structure further improves radial load capacity and overall rigidity, while the floating bearing design significantly enhances core stability. This innovation fundamentally resolves vibration and precision degradation issues commonly encountered in traditional electric spindles during high-speed operation.

In terms of durability, the DQF-200 incorporates an ultra-long-life tool-pulling mechanism composed of high-strength polymer components, high-stability disc springs, and high-nitrogen stainless steel. This design enables up to 500,000 failure-free cycles, extending maintenance intervals by 50% compared with similar products and substantially reducing downtime and maintenance costs for PCB manufacturers.

Full-Process Quality Control: Building a Solid Foundation for Excellence

Haozhi’s quality philosophy—“Craftsmanship in Every Detail, Creating World-Class Precision Core Components”—is implemented through comprehensive, process-based management spanning the entire product lifecycle, from incoming materials to final delivery. By promoting shop-floor-centered collaboration, the company strengthens quality awareness among frontline employees and encourages organization-wide participation in continuous improvement.

Quality management is systematically advanced across five core dimensions: quality culture, supplier management, production process control, inspection and testing, and system governance. Through a robust quality-cost measurement and control system, Haozhi strengthens quality prevention and improvement while minimizing quality losses to achieve optimal cost efficiency.

1. Quality Culture Development

Haozhi promotes the philosophy of “Small Improvements, Big Achievements” through initiatives such as Quality Month, Zero-Defect Team Awards, and the Haozhi Craftsman Award. Leveraging QCC activities, the 5 Why methodology, and PQCP process control plans, quality awareness is embedded throughout design and manufacturing—fostering a culture in which everyone is a guardian of quality.

2. Supplier Quality Management

Strict supplier admission and management procedures are enforced through the Supplier Management Program and Product & Process Control Program. Core materials—including metals, disc springs, and sensors—undergo rigorous incoming inspections based on six dedicated operating guidelines. Using tools such as Pareto analysis, control charts, and capability studies, Haozhi ensures real-time monitoring and early warning of material quality. When nonconformities arise, materials are returned, and suppliers receive on-site process guidance to eliminate risks at the source.

3. Production Process Quality Management

Manufacturing quality is ensured through pre-production inspections, real-time monitoring of critical process parameters, and systematic checks of semi-finished products. The Manufacturing Process Quality Control Method links quality accountability to performance evaluation, while the IPQC mechanism enforces routine inspections.

A daily improvement team—comprising quality, process, and production departments—conducts focused meetings to implement rapid corrective actions. PQCP plans clearly define 5W1H, responsibilities, sampling frequency, and feedback mechanisms for each process step. Under the Tier-3 On-site Abnormality Response System, specialized teams ensure fast, transparent issue resolution, maintaining stable and efficient production.

4. Inspection and Testing

Equipped with advanced domestic and international precision measurement instruments and supported by a professional metrology team, Haozhi ensures reliable and accurate testing. The company operates comprehensive laboratory systems covering metallurgy, bearings, metrology, motors, performance, cutting, linear motors, and reducers, alongside a mass-production reliability laboratory to fully validate long-term product performance.