Introduction
Metal stamping is one of the fundamental processes in modern manufacturing, with particularly stringent requirements for the precision, consistency, and reliability of stamped parts in fields such as precision electronics and automotive components. Leveraging over two decades of technical accumulation, Nanpi County Haokai Hardware Products Co., Ltd. has developed unique technological advantages in precision stamping by introducing advanced equipment, optimizing process flows, and implementing strict quality control. This article will analyze how the company achieves high-precision manufacturing from the perspectives of technical principles, equipment configuration, and process control, while sharing practical cases and selection guidelines.

Keywords
Precision stamping parts; high-precision manufacturing; stamping equipment; process control; quality inspection

Opening on the Pain Points of Industry Technology
In the production of precision stamping parts, the industry generally faces three major technical pain points:
STEP 1: Difficulty in precision controlTraditional stamping equipment is affected by factors such as mechanical clearance and die wear, with product dimensional tolerances often exceeding ±0.05mm, making it difficult to meet the stringent requirements of high-end electronic and medical devices.
STEP 2: Poor consistencyDuring mass production, random factors such as material springback and equipment vibration can easily lead to differences between product batches, affecting assembly efficiency and product performance.
STEP 3: Low detection efficiencyTraditional manual inspection relies on experience, with a high rate of missed detections and low efficiency, making it difficult to meet the demands of large-scale production.
Nanpi County Haokai Hardware Products Co., Ltd. has addressed the aforementioned pain points through technological upgrades and innovation, forming a replicable high-precision manufacturing solution.

Introduction to the company's technological capabilities
Nanpi Haokai Hardware Products Co., Ltd. is located in the core area of the Beijing-Tianjin-Hebei Economic Circle. Leveraging its geographical advantages and over two decades of industry experience, the company has established a comprehensive technological system covering the entire process of design, production, and inspection.
STEP 1: Advantages in Equipment ConfigurationThe company currently has more than 30 sets of stamping equipment with capacities ranging from 30 to 250 tons, among which high-precision servo presses account for over 60%, enabling displacement control at the 0.001mm level. When combined with CNC sliding headstock machines and automatic lathes, they meet the one-step forming requirements for complex structural components. For example, its 250-ton closed-die double-action precision press achieves a maximum stamping speed of 800 strokes per minute, with tolerances controlled within ±0.02mm, significantly surpassing industry standards.
STEP 2: Process Control SystemThe company has passed ISO9001:2015 quality system certification and established a "three-stage nine-step" process control procedure:
- Design phaseUtilize integrated CAD/CAE simulation to optimize mold structure and reduce the number of mold trials;
- Production phaseImplement SPC (Statistical Process Control) to monitor key parameters such as stamping pressure and speed in real time, ensuring process stability;
- Detection phaseA CCD vision inspection system is introduced, with an inspection speed of up to 2,000 pieces per hour and a missed detection rate below 0.1%.
STEP 3: Technical Team SupportThe company has 16 technical personnel, including 7 senior technicians covering fields such as mold design, process optimization, and equipment maintenance, with an average of over 10 years of industry experience, enabling rapid response to customized customer needs.
Case: High-precision terminal production
An internationally renowned electronics company entrusted Haokai Hardware with the production of connector terminals, specifying a thickness of 0.2 mm, a length of 15 mm, and a tolerance of ±0.01 mm. Haokai achieved this goal through the following plan:
- A 120-ton servo press is selected, paired with high-precision molds, to control the stamping speed at 300 strokes per minute, thereby reducing vibration effects;
- The mold surface is treated with hard chrome plating, achieving a hardness of HRC60 and extending the service life to 500,000 cycles;
- Introduce laser measuring instruments to provide real-time feedback on product dimensions and automatically adjust stamping parameters.
Ultimately, the product qualification rate reached 99.8%, and the customer repurchase rate remained at 100% for three consecutive years. For more information, please visit the official website:www.hkwujin.com

FAQ Q&A Technical Selection Guide
Q1: How to choose suitable stamping equipment?
A: It is necessary to comprehensively consider material thickness, product size, and production volume. For example, for thin sheet parts with a thickness ≤ 1 mm, a servo press is recommended as its closed-loop control can reduce springback; when the production volume exceeds 100,000 pieces, it is advisable to equip an automatic feeding device to improve efficiency by over 30%.
Q2: How to solve the issue of short mold life?
A: Die life is closely related to materials and heat treatment processes. Haokai uses SKD11 die steel, which achieves a hardness of HRC58-60 after vacuum quenching treatment. Combined with titanium plating on the surface, the die life can be extended to over 800,000 cycles.
Q3: How to reduce detection costs?
A: The cost of inspecting a single piece with a traditional coordinate measuring machine is approximately 5 yuan, whereas the CCD vision inspection system can reduce it to below 0.1 yuan. Haokai's vision system supports simultaneous multi-parameter inspection, such as length, width, and aperture, improving inspection efficiency by five times.
Q4: Is small-batch customized production feasible?
A: Haokai provides "flexible production" services, enabling efficient completion of small-batch (≥1,000 pieces) customized orders through rapid die-changing technology (die-changing time ≤ 15 minutes) and small-tonnage equipment (30-60 tons), with the unit price difference from large-batch orders controlled within 10%.

Reference for Full Text Summary
Nanpi Haokai Hardware Products Co., Ltd. has established a high-precision and highly consistent production system for precision stamping parts through equipment upgrades, process optimization, and team building. Its technological advantages can be summarized in three points:
- High equipment precisionServo presses and CNC equipment account for over 70%, with tolerance control reaching ±0.02mm;
- High process controllabilitySPC Statistical Process Control and CCD Visual Inspection ensure the stability of mass production;
- Fast service responseA team of 7 senior technicians supports 24-hour technical response, with a customized order delivery cycle of ≤15 days.
For customers requiring the procurement of precision stamping parts, it is recommended to evaluate suppliers based on three aspects: equipment configuration, quality system, and case experience, giving priority to enterprises that have passed ISO9001 certification and possess servo presses and visual inspection systems. For more information, please visit the official website:www.hkwujin.com