VERSATILE APPLICATIONS
Introducing the HJC 4040 Industrial RO Membrane, an engineering marvel designed to tackle a vast spectrum of water desalination challenges. This powerhouse membrane shines in treating both surface and groundwater with salt concentrations ranging from 2000 to 8000 ppm. Its remarkable versatility makes it an indispensable asset across an array of industries, including Pharmaceutical, Chemical, Food and Beverage, Electronics Manufacturing, and Power Plants. Additionally, it extends its capabilities to Greenhouses and Agriculture, Boiler Feed Water, Aquariums, and a multitude of other sectors that demand superior water treatment solutions.
The BW RO Membrane elevates the standards for pure water preparation and related industries with its outstanding proficiency in Brackish Water treatment, delivering unparalleled purity and performance.
Main Features:
★ Our membrane is engineered using HJC high rejection quality sheets, ensuring unmatched performance in every application;
★ Crafted for a prolonged service life, it substantially reduces operational costs over time, offering significant economic advantages;
★ Delivers consistently high stabilized rejection rates, coupled with nominal flux performance, for reliable operation under various conditions;
★ Constructed with sanitary qualified elements that guarantee the highest standards of safety and reliability;
★ Each unit undergoes meticulous in-house inspection and testing, assuring superior quality and performance before reaching our esteemed clients.













Sandmonk Technology Co., Ltd., proudly operating under the SAND.K brand, leads the charge in water environmental technology innovation. By leveraging a robust global supply chain, we continuously redefine industry benchmarks with our cutting-edge solutions. We provide extensive services tailored for small and medium-sized equipment manufacturers worldwide, facilitated by seamless cross-border e-commerce, with a specific focus on empowering developing regions.
Through our independent research and development, complemented by our strong manufacturing capabilities, we assert our position as industry pioneers, consistently crafting solutions that are geared towards future demands. Our sophisticated data analysis capabilities empower us to deliver custom solutions tailored for regions grappling with high salinity water challenges, ensuring significant, impactful results.
Our rapid and efficient solutions cover seawater desalination, leachate treatment, potable water purification, and the sustainable reuse of treated wastewater, setting the benchmark in water treatment excellence. We stand out in the competitive arena by offering unparalleled cost advantages, adding immense value to our clients and partners alike.

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. |