Lishui Yuanrong Environmental Protection Equipment Co., Ltd. is an environmental protection equipment manufacturer located in Lishui, Zhejiang, China.
The company integrates research, design, manufacturing, sales and technical service. Its manufacturing scope covers equipment for sludge dewatering, solid-liquid separation, three-phase separation and related sludge handling.
Manufacturing Scope
Sludge Dewatering
The company manufactures decanter centrifuges and supporting equipment for sludge dewatering.
The equipment addresses the treatment stage where wastewater sludge needs to be separated and its water content reduced before transportation, storage, disposal or further treatment.
Solid-Liquid Separation
Decanter centrifuges provide continuous separation of solids from liquids for wastewater and industrial processing applications.
The equipment is applied in food processing, chemical processing, pharmaceutical processing, mining, pulp and paper, textile and dyeing and other industries.
Three-Phase Separation
Three-phase separation equipment is used for processes involving solid, water and oil phases.
Oil sludge treatment is one of the stated applications of the company's equipment.
Sludge Handling
The company also supplies automatic dosing tanks, shaftless screw conveyors and sludge scrapers.
These products support chemical conditioning, sludge transfer and sludge collection around the main separation process.
Factory Production Equipment
CNC Machining Centres
CNC machining centres are used for precision component machining.
They provide programmed machining operations for components requiring controlled dimensions and consistent processing before assembly.
Turning Lathes
Turning lathes are used for cylindrical and rotational component machining.
Typical operations include turning external and internal surfaces and controlling applicable dimensions such as diameter, length and concentricity.
High-Precision Dynamic Balancing Equipment
High-precision dynamic balancing equipment is used for rotating centrifuge components.
The process identifies and corrects rotational imbalance before final assembly and testing, supporting controlled vibration during high-speed centrifuge operation.
Precision Testing Equipment
Testing equipment supports production inspection and final inspection.
Finished products are inspected by the technical department before warehouse entry and shipment.
Technical Team
More than 35 technical staff support the company's technical operations.
The technical function covers:
Equipment research and design
Technical specification review
Production coordination
Equipment commissioning
Operator training
After-sales technical service
This team provides technical continuity from equipment requirements and manufacturing through commissioning.
Decanter Centrifuges
The company supplies horizontal decanter centrifuges, small decanter centrifuges and sludge dewatering centrifuges.
These machines are used for continuous solid-liquid separation and sludge dewatering.
Mobile Sludge Dewatering Equipment
Mobile systems integrate sludge dewatering equipment into a movable configuration for applicable treatment projects.
Automatic Dosing Tanks
Automatic dosing tanks are used for chemical preparation and dosing during sludge conditioning.
Shaftless Screw Conveyors
Shaftless screw conveyors transfer dewatered sludge and other solid materials after separation.
Sludge Scrapers
Sludge scrapers support sludge collection and movement in wastewater treatment systems.
Customer Types
Wastewater Treatment Plants
Municipal and industrial wastewater treatment facilities use the equipment for sludge dewatering and sludge handling.
01
Environmental Engineering Companies
Engineering companies purchase separation and dewatering equipment for wastewater treatment and sludge treatment projects.
02
System Integrators
System integrators incorporate centrifuges and supporting equipment into complete treatment systems.
03
Industrial Manufacturers
Industrial customers in food, chemical, pharmaceutical, textile, brewing, mining, paper and petrochemical industries use the equipment for wastewater sludge and industrial separation applications.
04
Equipment Distributors
Distributors purchase environmental protection equipment for local project supply and resale.
05
Certifications
Yuanrong holds ISO 14001, ISO 45001, and EU CE certification for horizontal decanter centrifuges, providing customers with documented evidence of management-system compliance and supporting EU conformity assessment.
Customer Visits
Customers and project representatives can visit the company for factory inspection, technical discussions and equipment evaluation.
A factory visit allows buyers to review the actual production environment, machining equipment, testing facilities and equipment manufacturing process.
Technical personnel can also discuss equipment specifications and project requirements directly with visiting customers.