Huajing is a long-term, high-volume supplier of Coconut Shell Carbon for Water Filter Cartridges, featuring an iodine value of ≥1000 mg/g. We offer wholesale supplies directly to filter cartridge manufacturers and water treatment enterprises. From sourcing premium coconut shell raw materials in Southeast Asia to utilizing our own mature, proprietary production processes, every batch undergoes precise crushing, screening, and acid-washing purification. Heavy metal content is strictly controlled to remain well within safe drinking water standards. This specialized carbon for filter cartridges boasts a high specific surface area of 950–1200 m²/g, a methylene blue adsorption value exceeding 12 ml/0.1 g, and a residual chlorine removal rate of over 90%. It is widely utilized in UDF granular activated carbon cartridges, CTO sintered carbon blocks, and pre-filter housings for RO systems. We welcome inquiries and orders; as a direct manufacturer, we guarantee quality, support custom mesh size specifications, ensure stable supply, and provide worry-free after-sales service.
Huajing is deeply rooted in the field of water purification media, focusing specifically on the R&D and production of Coconut Shell Carbon for Water Filter Cartridges. We operate as a fully integrated source factory, encompassing raw material procurement, production processing, sales, and service. This coconut shell activated carbon is custom-engineered for water purifier cartridges; it is produced using premium, mature coconut shells sourced from tropical islands—eschewing inferior shells and impurities—and refined through a multi-stage process involving crushing, carbonization, activation, screening, and purification.
Unlike standard coal-based or wood-based activated carbon, this specialized Coconut Shell Carbon for Water Filter Cartridges features a micropore ratio exceeding 85%. Its pore structure is precisely sized to match and capture minute impurities found in water—such as residual chlorine, organic compounds, and heavy metal ions. It offers an adsorption capacity 1.5 times greater than that of ordinary activated carbon and boosts water purification efficiency by 40%. As a core filtration medium for residential RO systems, ultrafiltration purifiers, and commercial water treatment equipment, it fully meets the demands for deep purification of drinking water.

Raw Material Selection: We hand-select premium, mature coconut shells from tropical islands, manually removing impurities to ensure the absolute purity of the raw materials.
High-Temperature Activation: Activated using steam at temperatures ranging from 600°C to 900°C, allowing for precise control over the pore structure and ensuring a micropore ratio exceeding 80%.
Refined Screening: Precisely screened to ensure uniform particle size, resulting in minimal resistance to water flow. Quality Control: Each batch undergoes rigorous testing for Iodine Adsorption Value (≥1000 mg/g), Mechanical Strength (≥95%), and Ash Content (≤5%). Non-conforming products are strictly never shipped.
1. Natural and Pure Raw Materials
Safe and free from secondary contamination: Sourced from naturally matured coconut shells with an ash content of ≤5%. The product has passed food-grade safety inspections and water-contact hygiene certifications. It contains no harmful substances such as sulfur or phosphorus; the purification process releases no impurities, thereby preventing secondary contamination of the water and safeguarding the health of your family's drinking water.
2. Exceptional Adsorption Performance
Offering comprehensive and highly efficient purification, this material boasts a specific surface area reaching as high as 1,100–1,500 m²/g—meaning just one gram of activated carbon provides an adsorption surface area equivalent to 1.5 standard-sized football fields. With an iodine adsorption value of 1,000–1,150 mg/g and a methylene blue adsorption value of 180–210 mg/g, it can remove 99% of residual chlorine, chloroform, pesticide residues, and off-colors and odors from water. Simultaneously, it effectively adsorbs heavy metals such as lead, mercury, and cadmium, thereby enhancing the taste of the water and rendering it sweet, crisp, and refreshing.
3. Stable Physical Properties
Durable and resistant to pulverization: Features a mechanical strength of ≥95%, offering excellent abrasion resistance and impact resistance. It remains intact and does not crumble even after prolonged immersion in water, thereby preventing clogging of filter cartridges and avoiding increased water pressure loss. With a bulk density of 0.48–0.55 g/cm³, it is compatible with various filter cartridge filling processes.
4. Extended Service Life
The service life of this Coconut Shell Carbon for Water Filter Cartridges is 1.8 times longer than that of ordinary activated carbon, reducing the frequency of replacements and lowering overall operating costs.
5. Customizable Specifications
Adaptable to all filter cartridge scenarios: We offer a range of standard mesh sizes—including 4–8 mesh, 6–12 mesh, 10–28 mesh, and 12–30 mesh—and can also customize products based on specific client requirements regarding mesh size, iodine value, and pH level (6.5–8.5). It is compatible with various types of water purifier cartridges—such as UDF granular filters, CTO compressed filters, and T33 post-filters—and is suitable for use in a wide array of residential, commercial, and industrial water purification equipment. Application Scenarios and Solutions
Home Water Purification: Compatible with RO water purifiers and ultrafiltration cartridges; effectively removes residual chlorine and odors, improves taste, and meets direct-drinking water standards.
Commercial Direct Drinking: Ideal for refilling direct-drinking dispensers in coffee shops and hotels; reduces annual replacement costs by 15% and prevents business interruptions caused by downtime for carbon replacement.
Food Processing: Used for juice decolorization (achieving a 95% pigment removal rate for orange juice) and sucrose purification, without altering the natural flavor of the food products.
Industrial Purification: Suitable for power plant boiler water treatment and reverse osmosis (RO) pretreatment; protects membrane components and extends equipment service life.
1. Before filling, rinse the Coconut Shell Carbon for Water Filter Cartridges 2–3 times with clean water to remove fine dust particles and prevent filter cartridge clogging.
2. Fill the cartridge evenly according to its specific dimensions; maintain a packing density of 85%–90% to prevent water flow "short-circuiting" (channeling).
3. For home water purifiers, replacement is recommended every 6–12 months; for commercial equipment, every 3–6 months. Adjust the replacement schedule based on specific water quality conditions and water consumption volume.
4. Store in a dry, well-ventilated area; avoid exposure to moisture or direct sunlight. Seal any unused product securely for future use.
Water-Related Product Hygiene and Safety Approval, ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification, Food-Grade Testing Reports.
Procurement Assurance: Direct supply from the source factory. Sample testing is supported (500g samples provided free of charge; shipping costs are payable upon delivery). Sample performance is guaranteed to be consistent with that of the bulk order.
Customization Services: Customizable options available for particle size, iodine value, and packaging specifications. We offer comprehensive OEM/ODM manufacturing services, including private label production support.
After-Sales Support: Technical guidance is provided. In the event of any quality issues arising during use, our team will address and resolve the issue via telephone within 48 hours. Returns and exchanges are supported.