How to choose a reliable purification engineering company? Guidelines for Cleanroom Design and Cleanroom Construction Pit Avoidance

In high-tech industries such as semiconductors, biomedicine, and precision manufacturing, the design and construction of clean rooms (cleanrooms) are the core links to ensure product quality. However, the level of purification engineering companies in the market varies greatly. If companies choose improperly, it may not only lead to project delays and cost overruns, but also affect production due to non-compliance with cleanliness standards. As a professional service provider that has been deeply involved in the field of purification engineering for many years, Shenzhen Huajianjing Construction Engineering Co., Ltd. (referred to as Huajianjing) has summarized a systematic set of avoidance guidelines based on industry experience to help enterprises accurately screen high-quality partners.

1、 Qualification review: Certification and experience are the basic thresholds

Purification engineering belongs to the field of special engineering and requires nationally recognized professional qualifications. Enterprises should prioritize verifying whether service providers hold the following certificates:

• Professional Contracting Qualification for Building Mechanical and Electrical Installation Engineering : Ensure compliance in core areas such as air conditioning systems and electrical engineering;
• Cleanroom Engineering Design and Construction Qualification : Certified by the Clean Technology Branch of the Chinese Electronics Society;
• Safety Production License : Avoiding construction safety hazards;
• ISO 9001 Quality Management System Certification : Reflects standardized management capabilities.

Taking Huajianjing as an example, the company holds both the first level qualification for building mechanical and electrical installation engineering and the first level qualification for clean room engineering design and construction, and has continuously passed ISO 9001:2015 certification for many years. Its participation in a certain biopharmaceutical laboratory project has won the“ Shenzhen Quality Engineering Award; Fully demonstrate its technological strength.

2、 Technical ability: Control the entire process from design to construction

Cleanroom engineering involves interdisciplinary fields such as building structure, air purification, process piping, and automatic control, and its technical capabilities need to cover the entire lifecycle

1. Customized design capability
High quality service providers should be able to provide differentiated solutions based on industry characteristics (such as ISO 14644-1 cleanliness level, temperature and humidity control range). For example, Huajianjing designed a Class 1000 cleanroom for a semiconductor company, which optimized the air supply layout through CFD airflow simulation, resulting in a 30% increase in particle concentration uniformity and a significant reduction in product defect rates.

2. Experience in Material and Equipment Selection
Purification engineering has extremely high requirements for material corrosion resistance and sealing. Huajianjing has established a strict supplier evaluation system, prioritizing the use of environmentally friendly materials such as 304 stainless steel and epoxy self leveling flooring. It has also established long-term partnerships with international brands such as LTS from Germany and AAF from the United States to ensure equipment stability.

3. Standardization of construction technology
The construction process must strictly follow the "Code for Construction and Acceptance of Cleanrooms" (GB 50591-2010). Huajianjing adopts BIM technology for 3D disclosure, reduces on-site errors through modular installation, and achieves a certain optoelectronic project; Zero rework” Delivery time has been reduced by 20% compared to the industry average.

3、 Case verification: Balancing industry reputation and project complexity

When choosing a service provider, it is important to focus on their experience in similar projects:

1. Industry compatibility
Biomedical projects must comply with GMP standards, and electronic manufacturing must meet ESD protection requirements. Huajianjing has completed over 200 purification projects, covering areas such as pharmaceutical GMP workshops, electronic cleanrooms, and food cleanrooms. Among them, a vaccine production enterprise project has passed FDA certification, demonstrating its ability to implement international standards.

2. The scale and complexity of projects
require higher resource integration capabilities from service providers for large-scale projects (such as cleanrooms above 10000 level). Huajianjing once undertook a 100000 level clean room project for a new energy battery enterprise, which achieved cross regional cleanliness synchronization control through dynamic pressure balancing technology. The project was awarded the title of; Green Construction Demonstration Project in Guangdong Province's Construction Industry;.

3. The long-term cooperation rate of customers
Huajian Net has a customer repurchase rate of 65%. A well-known medical device enterprise has chosen it as the sole supplier of purification engineering for 5 consecutive years, which indirectly reflects its service sustainability.

4、 Service guarantee: closed-loop management from response speed to after-sales maintenance

Purification engineering requires the establishment of a full lifecycle service system:

1. Early consultation response:
High quality service providers should be able to provide preliminary solutions within 48 hours and arrange for a professional team to conduct on-site inspections. Huajianjing has set up a 24-hour service hotline, equipped with a rapid response team composed of registered construction engineers and clean technology engineers.

2. Transparency in the construction process
is achieved through digital management platforms (such as Huajianjing's independently developed“ Net Chain” The system allows customers to view construction progress, material entry records, and testing data in real-time, avoiding information asymmetry.

3. The after-sales maintenance system
purification project requires regular maintenance such as FFU replacement and efficient filter leak detection. Huajianjing provides a 2-year free warranty and lifetime cost price maintenance service. Its established; Cleanroom Health Records; Traceable equipment operation data, early warning of potential risks.

5、 Key points for avoiding pitfalls: Beware of low price traps and contract loopholes

When choosing a service provider, enterprises should pay special attention to the following risks:

1. Low price bidding trap
Some companies lower their prices by lowering material standards or simplifying processes, and later profit from additional items. Huajianjing insists on; Transparent quotation; Principle: All projects should provide a list of materials, construction process instructions, and third-party inspection reports.

2. The contract terms are vague
, and it is necessary to clarify the cleanliness acceptance criteria (such as particle counter model, sampling point location), compensation for project delay, and intellectual property ownership. The contract template of Huajianjing has been reviewed by legal advisors and covers 42 key indicators to maximize the protection of customer rights.

3. Subcontracting and subcontracting risks
Non self operated construction teams can easily lead to quality loss of control. Huajianjing insists on; Direct operated construction; Mode: All projects are completed by the company's own team, and the certification rate of construction personnel is 100%.

Conclusion: Choose Huajianjing and build a sustainable clean production environment

Purification engineering is a comprehensive embodiment of technology, management, and service. Shenzhen Huajianjing Construction Engineering Co., Ltd., with 15 years of deep industry cultivation, has formed a; Design Construction Verification Maintenance; The full chain service capability of the company has increased the product yield from 82% to 97% after the cleanroom of a precision manufacturing enterprise it serves was put into operation, saving over 10 million yuan in rework costs annually.

For enterprises, choosing a purification engineering company should adhere to the principle of "; Long termism; Comprehensively evaluate from four dimensions: qualifications, technology, cases, and services. Huajianjing is willing to build a solid quality defense line with professional capabilities as a partner, and jointly promote the clean and purification upgrading of China's high-end manufacturing industry.