Versatile Applications
Experience transformative water purification with Sandmonk Technology Co., Ltd.'s exceptional BW4021 Industrial Membrane. This innovative solution is engineered for the effective desalination of both surface and groundwater, expertly managing salt concentrations from 2000 to 8000 ppm. Perfectly suited for diverse industries such as Pharmaceutical, Chemical, Food and Beverage, Electronics Manufacturing, and Power Plants, these membranes are also ideal for Greenhouses, Agriculture, Boiler Feed Water preparation, and Aquariums, ensuring consistently remarkable results across all applications.
Pure Water Preparation and Related Industries: Our high-performing BW RO Membrane excels in processing Brackish Water, guaranteeing superior quality results every single time.
Main Features:
★ Incorporating HJC high rejection quality sheets, our membrane ensures purification standards that go beyond expectations;
★ Enjoy an extended service life, reducing costs and offering unmatched value for investment—distinctive in the marketplace;
★ Featuring advanced stabilized rejection and optimized nominal flux, this membrane delivers unmatched efficiency and performance;
★ Certified hygienic elements guarantee top-tier safety and sanitation, safeguarding what matters most;
★ Comprehensive in-house inspection & testing procedures assure the highest level of quality and reliability.
Customization:
RO Membrane Wrapping Tape - Available √
RO Membrane Center Tube - Available √
RO Membrane Fabric Tricot - Available √
RO Membrane Spacer - Available √
RO Membrane Gasket - Available √
RO Membrane Stickers Design - Available √
RO Membrane Packing Bags - Available √
RO Membrane Packing Cans - Available √
RO Membrane Packing Cartons Design - Available √





At SAND.K, we are fervent pioneers in water environmental technology, leveraging a vast global supply chain to fuel industry-wide revolutionary innovations. We provide comprehensive, all-in-one solutions for crucial components, meticulously crafted for small to medium-sized equipment manufacturers. Our unwavering dedication extends across borders through e-commerce, reaching global customers in developing regions, offering access to transformative solutions.
With pioneering research and state-of-the-art manufacturing expertise, we position ourselves as leaders and trailblazers in the water technology sphere. Through diligent data analysis, we customize solutions for regions facing high salinity water challenges, setting new standards of excellence in water treatment technology.
Our innovative solutions encompass seawater desalination, waste leachate treatment, drinking water purification, and the creative reuse of treated wastewater. Additionally, our strategic cost advantage distinctly positions us within the industry, delivering unmatched value and efficiency.

QUESTION |
ANSWER |
Are you a factory or trading company? |
Yes, we have our own factory. |
Can you offer OEM service? |
Yes, OEM is OK. |
Can I get samples from you factory? |
Sure. We are pleased to. |
What would you do if some quality problem occur? |
We will be responsible to all quality problem. |