As the global economic environment becomes increasingly complex and competition in the manufacturing industry becomes increasingly fierce, industrial enterprises are paying more and more attention to the return on investment and the life cycle cost of equipment. Especially in the field of solid-liquid separation, the purchase cost of high-end equipment is often hundreds of thousands or even millions of yuan, which is a considerable investment for small and medium-sized enterprises. Therefore, the used equipment market has emerged and is becoming increasingly active. Among them, the decanter centrifuge under Alfa Laval, a Swedish brand that is a global leader in separation technology, has become one of the most popular star products in the second-hand market with its excellent performance and durability.
What is a decanter centrifuge?
A decanter centrifuge is a continuous automatic solid-liquid separation device, and its main components include:
Drum (rotor): high-speed rotation generates centrifugal force;
Screw conveyor: maintains differential speed with the drum to push the settled solids;
Drive device: generally uses dual motor drive (main motor + differential motor);
Feeding system and discharging system: complete the continuous feeding and discharging process;
Automatic control system: realizes operation control, fault alarm and other functions.
Its basic principle is to use the huge centrifugal force generated by high-speed rotation to quickly separate solid and liquid components with different densities, and achieve continuous and efficient separation.
Core advantages of Alfa Laval decanter centrifuge
Even if it is second-hand equipment, Alfa Laval’s core competitiveness is still significant:
1. High separation efficiency
Adopting advanced centrifugal force optimization structure design, high solid recovery rate, liquid clarity better than the industry average, suitable for high-precision solid-liquid separation needs.
2. Superior material
The drum and spiral are mostly made of duplex stainless steel or super duplex steel, which has strong corrosion resistance, and the wear-resistant layer is sprayed with tungsten alloy, and the equipment is highly durable.
3. Intelligent control
Equipped with PLC or DCS control system, it can be remotely monitored and set programs, which is convenient for docking with smart factory systems.
4. Multi-field versatility
From sewage treatment to chemical crystallization materials, food residues, lees dehydration, biological fermentation liquid, etc., it has excellent performance.
5. Low energy consumption and stable operation
Alfa Laval decanter centrifuge adopts energy-saving drive design, low operating noise, low vibration, and small daily maintenance.
Market Status and Opportunities of Used Alfa Laval Decanter Centrifuges
In recent years, with the tightening of environmental protection policies, the improvement of automation levels and the strengthening of recycling and reuse concepts, more and more companies have paid attention to the “high-quality second-hand equipment” market in addition to investigating new equipment.
In the field of centrifuges, Alfa Laval is one of the brands with the highest value retention rate. The price of a new Alfa Laval decanter centrifuge is about RMB 800,000-1.5 million, while the price range of second-hand equipment that has been professionally refurbished and tested is RMB 300,000-600,000, which is very cost-effective.
In the solid-liquid separation link, Alfa Laval centrifuge’s technological leadership has been verified by tens of thousands of companies around the world. Purchasing second-hand equipment through professional channels can not only greatly reduce the company’s investment costs, but also quickly improve production efficiency and environmental compliance. We promise: every second-hand Alfa Laval decanter centrifuge sold has been strictly tested and has reached the best operating state.
If you are looking for a cost-effective, high-performance centrifugal separation solution, please feel free to contact us for a quote, video demonstration or make an appointment to visit the prototype.
