Our sintered activated carbon rods are made from high-quality coconut shell activated carbon powder and food-grade binders through high-temperature sintering, featuring a uniform porous structure, high adsorption capacity, and no carbon dust shedding. Key performance includes: effective removal of residual chlorine (removal rate ≥90%), odors, colorants, VOCs, and heavy metals; also provides secondary filtration for microbial particles. Widely used in household/commercial water purifiers, coffee machines, ice makers, drinking machines, and other pre-filtering or post-filtering applications. We can customize based on specific parameters such as flow rate, pressure differential, and CTO dechlorination lifespan.

Yes, Cleantop's water purification products have obtained international drinking water safety certifications such as NSF and EPA, and the selected activated carbon materials comply with food-grade standards. The company also holds ISO 9001, 14001, and 45001 system certifications, and will obtain IATF16949 and medical GMP certifications in 2024, fully meeting compliance requirements for drinking water contact materials in European, American, Japanese, and Korean markets. Export orders can provide related certification documents and third-party testing reports as needed.

We offer comprehensive OEM/ODM services. Over the past 20 years, Cleantop has accumulated more than 1000 filtering solutions, supporting customer customization in the following aspects: 1) Size specifications (outer diameter, inner diameter, length can be flexibly adjusted, the current Ф38*57 is just one of the standard options); 2) Activated carbon material and precision (coconut shell carbon/coal-based carbon, 5μm/10μm, etc.); 3) End cap structure (flat, insert, threaded interfaces, etc.); 4) Packaging customization (independent membrane packaging, color boxes, brand logo printing); 5) Private brand labeling. We have a professional R&D team capable of delivering full-service from sampling to mass production.

Cleantop has a 50,000㎡ factory and a 20,000㎡ clean workshop, producing sintered activated carbon rods in a compliant clean environment to ensure products are free from secondary contamination. We have a national CNAS-accredited testing center that conducts flow rate tests, pressure differential tests, residual chlorine removal rates, TOC, particle shedding, bursting pressure, and other indicators for every batch of products. Combined with the IATF16949 automotive-grade quality control process, we ensure that performance deviations between batches are controlled within ±5%.

The MOQ for standard model sintered activated carbon rods is typically 1000-2000 pieces, depending on product specifications and packaging requirements; the MOQ for custom models is recommended to start at 5000 pieces. In terms of delivery time, standard items can be shipped within 7-15 days; the mass production delivery date for OEM custom orders is generally 25-35 days. We own a factory in Zhongshan, Guangdong, with flexible production scheduling. For long-term partners, we can arrange VMI inventory or batch deliveries, ensuring your supply chain stability.

Yes. We welcome customers to thoroughly test the products before cooperation. For standard sizes, we can provide 3-5 free samples (shipping to be paid); for custom specifications, a certain sampling fee is charged based on the complexity of development, which can be refunded after mass production. The sample sampling cycle is generally 7-10 working days. Meanwhile, we can provide complete test reports issued by CNAS laboratories to assist customers in completing secondary certification applications such as NSF, WRAS, KTW in local markets.

Under standard usage conditions (inlet residual chlorine ≤2ppm, flow rate 1L/min), this Ф38*57 sintered activated carbon rod has an effective lifespan of approximately 3000-6000 liters or 6-12 months, depending on actual water quality and frequency of use. For storage, the product should be kept in a cool, dry, and well-ventilated environment, avoiding direct sunlight and odor contamination. The shelf life in unopened original packaging is 2 years. We will clearly indicate installation instructions, replacement cycles, and storage specifications in the product packaging and technical documents for end users' convenience.