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Contact The Oltaven sintered activated carbon filter stick, size Ф60×130 mm, is a finished water filter cartridge that reduces chlorine, off-flavours, colour, and certain heavy metals from drinking…
FILTER MEDIA / ROLLS · SHEETS · DIE-CUT
The Oltaven sintered activated carbon filter stick, size Ф60×130 mm, is a finished water filter cartridge that reduces chlorine, off-flavours, colour, and certain heavy metals from drinking water. It is made from high-iodine coconut shell carbon with food-grade ion exchange resin, formed into a rigid porous block. It suits household reverse osmosis systems, water dispensers, side-by-side refrigerators, and commercial coffee machines. Oltaven supplies the complete cartridge, not just the filter media.
Media choice sets the starting point. High-iodine coconut shell carbon offers a dense pore structure that adsorbs chlorine and organic compounds, while food-grade ion exchange resin helps soften water and capture heavy metals such as lead and mercury. But the finished filter's behaviour depends on how these materials are combined and shaped.
Sintering bonds the carbon particles into a self-supporting block without leaving loose carbon fines. The forming step controls pore size, wall thickness, and overall dimensions. A well-formed block has uniform microporosity, so water flows evenly and the filter does not shed black particles. The same media formed with different process parameters can produce cartridges with different flow and capacity.
Framing and sealing complete the product. End caps, inner and outer diameter ratios, and optional welding are adapted to the device's housing. Oltaven supports custom end-cap welding and size adjustments so that the finished cartridge fits the intended water path without bypass. This is why we sell finished filters: the value lies in the combination of media, forming, and sealing.
Three factors determine efficiency, resistance, and capacity in the finished filter. First, the carbon's iodine value and particle size influence adsorption capacity and the rate of chlorine removal. Second, the sintering process sets the pore structure: finer pores improve filtration precision but raise resistance; larger pores lower resistance but may reduce contaminant capture. Third, the dimensions and sealing geometry control the effective filtration area and flow distribution.
The Ф60×130 mm size balances a large frontal area with a compact length, giving high initial flow and a long service life in typical household water pressure. The uniform microporous structure helps maintain consistent flow and prevents channelling. Because the block is rigid, it resists deformation and does not release carbon fines downstream. The ion exchange resin is distributed within the carbon matrix to provide simultaneous softening and adsorption.
Customisation of length, diameter, and inner/outer diameter ratios allows the cartridge to match the housing volume and flow requirement of each device. A larger outer diameter generally increases capacity, while a longer length increases contact time. Adjusting these proportions lets Oltaven tune the finished filter to the customer's target pressure drop and filter life.
The Ф60×130 sintered activated carbon stick is used as a pre-filter or post-filter in household reverse osmosis systems, commonly as a CTO or T33 stage. It is also used in point-of-use water dispensers, built-in refrigerator water filters, and commercial coffee machines where chlorine and odour affect taste. Other uses include ice machines and beverage equipment that require consistent water quality.
For each application, Oltaven can recommend the appropriate carbon type and forming specification based on the device's flow rate and water quality. The cartridge is compatible with many standard housings, and custom dimensions are available for equipment with non-standard spaces.
| Item | Detail |
|---|---|
| Product name | Carbon block water filter / CTO filter for water purifiers and refrigerators |
| Core filtration materials | High-iodine coconut shell activated carbon and food-grade ion exchange resin |
| Core performance | Softens water and inhibits scaling; adsorbs chlorine (bleaching powder) and off-flavours/odours; captures harmful heavy metals such as lead and mercury |
| Precision and service life | Uniform microporous structure, high initial flow, high filtration precision with no black carbon fines; large adsorption capacity and long service life |
| Common size references (outer diameter × length, mm) | Ф60×130 / Ф62×240 / Ф37.5×75 / Ф38×57 / Ф40×195 / Ф51×127 / Ф32×126 / Ф32×106 |
| Main end applications | Household reverse osmosis systems (pre-filter CTO / post-filter T33), drinking water dispensers, side-by-side refrigerator water filters, commercial coffee machines |
| Customisation service | Full OEM/ODM support. Length, diameter, and inner/outer diameter ratios can be tooled to match equipment needs; end-cap welding customisation is available. |
| Quality certification systems | The company's production base is certified to ISO 9001 and IATF 16949. Filter materials meet strict drinking water safety and hygiene standards and are controlled by a national-level CNAS testing centre. |
Oltaven has more than 20 years of experience in filtration product development and manufacturing, with exports to Europe, the United States, Japan, and South Korea for over 20 years. Our OEM/ODM capability covers size, structure, filter media grade, end-cap material, logo, and packaging customisation, and we have developed more than 1,000 filtration solutions. The production plant covers 50,000 m², including six cleanrooms totalling 20,000 m².
Quality control follows IQC, IPQC, and OQC throughout the process. The in-house laboratory is accredited by CNAS (China National Accreditation Service for Conformity Assessment) and can issue test reports for filtration efficiency, dust holding capacity, and resistance. The company holds ISO 9001, ISO 14001, and ISO 45001 system certifications, and was awarded IATF 16949 automotive quality management system certification in 2024. Products comply with REACH and RoHS environmental regulations, and compliance documents are available. Our address is Zhongshan, Guangdong, China.
To receive a tailored quotation, please tell us your device or vehicle model, the required size or a drawing, the airflow or water flow, the operating conditions (such as pressure and temperature), and the quantity you plan to order. Oltaven will respond with a proposal and samples for your evaluation. Contact us to begin.
Resistance depends on the internal pore structure created during sintering, not just the external dimensions. A finer pore structure improves filtration precision but raises resistance, while a more open structure lowers resistance. Oltaven adjusts the forming process to balance resistance and efficiency for your application.
An OEM project begins with your requirements: device model, dimensions or drawing, target flow, operating conditions, and quantity. Oltaven then proposes a specification, provides samples, and after approval moves to mass production with full quality control.
The high-iodine coconut shell carbon effectively adsorbs chlorine, off-flavours, and certain heavy metals, while the ion exchange resin aids softening. Typical filtration precision is 5 microns, and performance can be tuned through media selection and forming parameters.
Yes, Oltaven supports full customisation of outer diameter, length, and inner/outer diameter ratios, as well as end-cap welding. We can tool new specifications to match your equipment's housing and flow path.
Contact us with your specifications and quantity. Standard samples are available free of charge (you cover international courier costs), and custom samples incur a development fee that is refundable against a bulk order. We will provide a quotation after reviewing your requirements.
The MOQ for standard models is typically 1,000–2,000 pieces, while custom models start at 5,000 pieces. Standard items ship in 7–15 days; OEM production takes 25–35 days after sample approval.
Under normal household water quality and flow, the filter typically lasts 6–12 months. Actual replacement depends on influent quality and daily water consumption; Oltaven can advise based on your specific operating conditions.
Oltaven holds ISO 9001, ISO 14001, ISO 45001, and IATF 16949 certifications, and products comply with REACH and RoHS. Our CNAS-accredited lab can issue test reports for filtration efficiency, dust holding capacity, and resistance. We also provide compliance support for NSF 42/61, FDA, and other market requirements as needed.