Since 2008, Chengrong Factory has remained committed to one consistent product philosophy:

• R&D first.
• Continuous product improvement.
• A commitment to solving real-world problems for end users.

Recognized as a National High-Tech Enterprise in China, Chengrong Factory reflects a long-term commitment to technological innovation, engineering development, and advanced ultrafiltration technology.

We invest more than RMB 3 million annually in R&D, focusing on ultrafiltration membrane development, material innovation, and system engineering optimization, as well as the development and manufacturing of whole-house and mineral-retaining drinking-water ultrafiltration systems.

Rather than simply following existing market solutions, Chengrong follows a different path: continuous engineering improvement driven by real-world application needs. We continuously enhance UF membrane performance, optimize product structures and manufacturing processes, and improve the long-term reliability and stability of our whole-house and under-sink ultrafiltration systems.

On average, Chengrong completes three to four major technical upgrades and product iterations every year, ensuring that our products continue to meet evolving market demands.

Our goal is not to create flashy marketing claims, but to solve the real challenges users face in installation efficiency, long-term operation, and maintenance.

Through years of ODM/OEM experience, Chengrong understands that world-class brands require more than product specifications — they require reliable engineering, consistent quality, and continuous improvement.

For Chengrong, innovation is not about creating impressive specifications. It is about continuously improving the products that people depend on every day.

1. Mineral-Retaining Under-Sink Ultrafiltration System for Drinking and Cooking

Designed for direct drinking and cooking applications, Chengrong’s mineral-retaining under-sink ultrafiltration systems combine activated carbon fiber (ACF) filtration with Chengrong’s proprietary 0.01 μm chlorine-reducing PVC ultrafiltration membrane technology in an integrated composite cartridge. This advanced filtration design provides clean, safe, and great-tasting water while preserving naturally occurring beneficial minerals.

Unlike RO systems, which remove most dissolved minerals and require wastewater discharge, Chengrong’s ultrafiltration solutions preserve the natural characteristics of water while achieving effective purification without wastewater generation. With no electricity required and fewer maintenance components, these systems provide a simpler, more reliable, and energy-efficient alternative for everyday under-sink drinking water purification.

2. Whole-House Ultrafiltration Water Filtration Systems

Developed for residential whole-house ultrafiltration water filter applications, Chengrong’s PVDF and PVC ultrafiltration systems provide flexible solutions for different water quality requirements, featuring 0.1 μm and 0.01 μm UF membrane filtration precision respectively.

These systems effectively reduce sediment, rust, colloids, and bacteria while maintaining stable water flow with minimal pressure loss.

Based on the proprietary Chengrong Membrane Flux Sizing Model, developed by Chengrong’s founder, Beikan Zhuang, our systems precisely match membrane capacity with actual household water demand, optimizing filtration performance, reducing hydraulic resistance, and ensuring stable water flow throughout the entire home.

With durable membrane materials and optimized system design, Chengrong’s whole-house ultrafiltration system solutions are designed for 5+ years of membrane service life under proper operating conditions.

Chengrong Membrane Flux Sizing Model
Designed around actual household water demand — not just membrane specifications.

3. High-Capacity Commercial Drinking Water Ultrafiltration Systems

Designed for high-demand commercial applications such as schools, offices, hotels, restaurants, and other public facilities, Chengrong’s commercial drinking water ultrafiltration systems are manufactured in Chengrong’s dedicated engineering equipment workshop and customized according to actual water consumption requirements.

By precisely matching system capacity with actual water demand and designing with approximately 20% capacity margin, Chengrong helps ensure stable water supply even during peak usage periods. These systems are especially suitable for commercial and public facilities requiring reliable water safety and excellent drinking taste.

Equipped with Chengrong’s proprietary 0.01 μm PVC ultrafiltration membrane technology, developed and manufactured in-house, these systems effectively retain suspended solids, colloids, bacteria, and viruses while maintaining stable water flow for continuous commercial operation.

Unlike conventional RO systems that remove most dissolved minerals and generate wastewater, Chengrong’s ultrafiltration solutions provide mineral-retaining purification without wastewater discharge, offering a more sustainable and cost-effective solution for commercial drinking water applications.

With integrated PLC control and real-time monitoring through mobile devices and PC platforms, operators can track key parameters such as flow rate, pressure, turbidity, and filter replacement status. Combined with customized flow-rate design, Chengrong’s commercial systems are engineered for reliable operation, easy management, and long-term stability.

From membrane technology and system design to manufacturing and customization, Chengrong provides complete commercial ultrafiltration solutions tailored to different application requirements.

4. Customized Water Purification Solutions for Engineering Projects

Beyond residential and commercial applications, Chengrong provides customized water purification solutions for engineering projects, laboratories, institutional facilities, and specialized applications requiring precise water quality control.

Based on raw water quality analysis, application requirements, and target water standards, Chengrong designs customized purification solutions integrating ultrafiltration (UF), reverse osmosis (RO), EDI, and other advanced water treatment technologies.

With a dedicated engineering equipment workshop, Chengrong provides complete project capabilities from system design and equipment manufacturing to installation and commissioning. Each system is customized according to actual water consumption requirements, with an additional 20% capacity margin designed to ensure stable operation during peak demand periods.

Chengrong’s engineering service commitment includes a rapid response within 20 minutes, solution development within 2 hours, and on-site technical support within 2 days when required. Combined with professional installation guidance, system commissioning, operator training, and long-term after-sales support, we help customers achieve stable and reliable system performance throughout the equipment lifecycle.

“Take Pride in Integrity” — The Principle Behind Chengrong Factory

For nearly two decades, founder Beikan Zhuang has built Chengrong around one guiding principle: “Take Pride in Integrity.”

For Chengrong, integrity is not simply a value we claim — it is a responsibility we accept for every product, every partnership, and every customer who trusts us.

Our goal is simple:

Give global customers fewer things to worry about.

Help OEM/ODM partners build stronger competitiveness and achieve around 10% higher profit potential.

ChengrongTimes — Our Own Brand, Built on Nearly Two Decades of Ultrafiltration Expertise

After nearly two decades of manufacturing ultrafiltration systems for leading international water filtration brands, Chengrong launched its own brand, ChengrongTimes, in 2025 — bringing the manufacturing expertise, engineering discipline, and quality standards developed through years of global OEM/ODM experience directly to consumers.

ChengrongTimes was created with one clear ambition: to redefine what high-quality household ultrafiltration systems can achieve beyond price competition. Built for users who demand more from their whole-house and under-sink water filtration products, ChengrongTimes focuses on TOP 1% manufacturing quality, advanced product functionality, thoughtful structural design, and long-term reliability.

Having manufactured for leading international water filtration brands for nearly two decades, Chengrong understands what world-class quality requires. ChengrongTimes is built upon these proven standards — while applying even more demanding internal requirements for manufacturing precision, material selection, engineering design, durability, and product performance.

Our belief is simple: an outstanding water filtration system is never defined by a single specification. It is the result of advanced membrane technology, carefully selected materials, optimized structural engineering, manufacturing consistency, rigorous quality control, and real-world usability working together.

Our goal is to create products engineered for 10-year reliability — designed to resist corrosion, minimize leakage risks, and deliver dependable performance throughout years of daily use. Because at ChengrongTimes, quality is the one thing we never compromise on.