About Us
Solids Control & Waste Management Since 1992
Xi’an KOSUN Machinery Manufacturing Co., Ltd. is a professional manufacturer of solids control and waste treatment equipment, integrating R&D, manufacturing, sales, and technical services. Serving customers in more than 70 countries and regions, KOSUN provides screening, separation, dewatering, mixing, conveying, and sludge treatment equipment for energy development, urban infrastructure, and environmental management.
Application
HDD Mud Recycling - KOSUN provides mud recycling and solid-liquid separation systems for Horizontal Directional Drilling (HDD) projects. During HDD construction, drilling mud carries cuttings out of the borehole, lubricates the drilling tools, stabilizes the borehole, cools the drill bit, and helps control formation pressure. As the drilling process continues, the mud collects more solid particles. An effective recycling system therefore helps maintain mud performance and supports continuous drilling operations. HDD Drilling Mud HDD drilling mud plays an important role throughout the drilling process. It carries drilled cuttings out of the borehole and helps keep the drilling fluid in circulation. In addition, the mud…
Tailings Treatment - Tailings Treatment & Dewatering KOSUN provides tailings treatment and dewatering solutions for mineral processing operations, supporting the separation, dewatering, and dry stacking of tailings. The treatment process combines classification, concentration, centrifugal dewatering, and filtration to reduce tailings water content and support the recovery and reuse of process water. Tailings Dry Stacking Tailings are generated during mineral processing and contain both solid particles and process water. Effective dewatering can reduce the volume of wet tailings, improve water recovery, and support dry stacking. KOSUN's tailings treatment process is designed to separate water from tailings and produce a dewatered solid fraction for dry…
Dredging Sludge Treatment - KOSUN provides solid-liquid separation and sludge dewatering systems for river, lake, reservoir, and pipeline dredging applications. The systems are designed to separate solids and liquids from dredged slurry, reduce sludge volume, and support the handling, transportation, and reuse of treated materials. River and Lake Dredging Sediment accumulation can reduce the effective flow section of rivers and affect flood control, drainage, irrigation, and the operation of related water infrastructure. Dredged sediment may also contain organic matter and pollutants that can affect water quality and aquatic environments. KOSUN dredging sludge treatment systems provide an integrated solution for the separation and dewatering of…
Oily Sludge Treatment - KOSUN provides oily sludge treatment systems for oily sludge generated during oil and gas production, oil gathering and transportation, crude oil storage, and refining. What Is Oily Sludge? Oily sludge is an industrial solid waste generated during oil and gas production, storage, transportation, and refining. It typically contains crude oil, water, and inorganic minerals. Due to its complex composition, oily sludge can contain water-in-oil (W/O) and oil-in-water (O/W) phases, suspended solids, and high-viscosity components. These characteristics make oily sludge difficult to settle and treat, while its sources and composition can vary significantly. Environmental Concerns of Oily Sludge Untreated oily sludge…
TBM Muck Treatment Solutions - TBM Muck Treatment for Shield Tunneling TBM muck treatment is designed to handle the excavated material generated during EPB shield tunneling. The muck mainly consists of excavated soil, slurry, additives, and groundwater. KOSUN provides a TBM muck treatment system for separating sand, fine sand, and soil from excavated muck, followed by dewatering and volume reduction. The treated materials can then be handled for transportation and potential reuse. Integrated TBM Muck Treatment System KOSUN’s TBM muck treatment system uses a modular configuration. The main equipment includes slurry preparation equipment, coarse screening equipment, sand washing equipment, fine screening equipment, desanding hydrocyclones, slurry…
Drilling Fluid Solids Control System - Drilling operations generate large volumes of drilling fluid containing drill cuttings, sand and other unwanted solids. Without effective solids control, the continuous accumulation of solids can affect drilling fluid properties, increase equipment wear and reduce the efficiency of the circulation system. KOSUN provides drilling fluid solids control solutions designed to separate unwanted solids, maintain drilling fluid performance and support efficient fluid circulation and reuse throughout the drilling process. Drilling Fluid Challenges in Drilling Operations During drilling, drilling fluid continuously circulates between the well and the surface treatment system. As it carries drill cuttings back to the surface, the concentration of…
Why KOSUN
Industry-Leading Core Technology
We independently master the core technology of solid-liquid separation.
Full-Chain Intelligent Manufacturing
We provide one-stop solutions — from individual equipment to complete turnkey systems.
News
KOSUN Delivers 90 m³/h Customized Mud Treatment System for Drilling Research Applications 2026-08-10 - KOSUN delivers a customized 90 m³/h mud treatment system for drilling research, providing solids separation, mud recycling and water reuse.
KOSUN DC355 Decanter Centrifuge Powers Turkish Oilfield Operations 2026-07-10 - This week, KOSUNs DC355 decanter centrifuge successfully departed for Turkey. The customer, a prominent Turkish drilling equipment manufacturer, specializes in drilling machinery design, engineering geological drilling, and after-sales support. The DC
A batch of CP68-55 centrifugal pumps has been shipped to Kenya for a geothermal drilling project 2026-07-08 - This month, KOSUN dispatched a shipment of CP68-55 Centrifugal pumps to Kenya, marking another milestone in the companys growing presence in the African market. Situated along the East African Rift Valley, Kenya benefits from active geological conditi
Case
Solid control system of ZJ70 drilling rig in Turkmenistan - Project Background: Turkmenistan, as an important energy producer in Central Asia, has extremely high requirements for the reliability and environmental friendliness of drilling equipment in the development of its oil and gas resources. To
Kazakhstan Large Scale Oily Sludge Treatment Project - At the beginning of 2024, KOSUN Machinery successfully delivered an oily sludge treatment system to Kuwait.
Shanghai -40m³/h sludge-water separation system - 1. Project Background The total length of the underground drainage network in the central urban area of Shanghai exceeds 12,000 kilometers. With the arrival of the rainy season, the siltation thickness of some pipe sections exceeds 30% of the pipe dia
Large-scale ecological lake dredging and treatment project - Project Background: The Xi 'an Kosun Lake dredging and treatment system is designed to address issues such as sediment deposition and water quality deterioration faced by various types of rivers and lakes at home and abroad. It aims to remove sedimen
KD-50 Trenchless sludge-water separation equipment - Project Case Introduction: Application of Russian KD-50 Trenchless sludge-water separation equipment Project Background: With the acceleration of urbanization in Russia and the increasing demand for underground pipeline construction, trenchless construction technology has been widely applied in municipal, oil, gas and other projects due to its high efficiency, environmental friendliness and low interference with the ground. When a certain Russian engineering company was laying underground pipelines in the St. Petersburg area, it faced the problem of slurry treatment and needed to efficiently separate the waste slurry generated by drilling and excavation to achieve solid-liquid separation and resource utilization. For this purpose,…
Kuwait – Landing Oil Sediment Treatment System - Project Background: Kuwait, as a globally significant oil producer, generates a large amount of oily sludge during the process of crude oil extraction and transportation, posing a severe challenge to the environment. To address this issue, our company designed and constructed a highly efficient and environmentally friendly 50-ton-per-hour on-site oil sludge treatment system for a certain oil company in Kuwait, achieving harmless treatment and resource recovery of oil sludge and contributing to the sustainable development of the local area. 004.png Technical highlights: High-efficiency separation process: By adopting the combined technology of "hot washing + centrifugal separation + chemical conditioning", it…
Separation Performance
Global Certifications & Industry Recognition
Our commitment to engineering excellence is recognized by the world’s most authoritative regulatory bodies and international standards.
API Certified Continuously Since 2007
KOSUN has been certified to API Spec Q1 — the oil and gas industry’s benchmark for quality management — continuously since 2007, the year we began exporting. Every product is engineered and manufactured under this internationally recognized system, ensuring reliable performance in the most demanding solids control applications across 90+ countries and regions.
API Certification
Continuously certified to API Spec Q1 since 2007
Global Reach
Exporting to customers in over 70 countries since 2007
Unbroken Certification
Renewed and audited year after year since 2007 — never lapsed
Our Partners
