Thanks to centrifuges of Huading Separator, the technology for the recovery of vegetable oils has made major progress right up to the present day. In order to drastically reduce the consumption of fresh water and therefore the production of effluent we developed many new centrifuges to meet customer’s demand in practice. The intelligent combination of process and engineering know how is the basis for constantly improved oil yields and capacities of the centrifuges of Huading Separator.


Olive oil
Palm oil
VCO ( Virgin coconut oil )
Avocado oil
━ Cocoa butter
━ Nut oils


Huading Separator supplies separation technology for the recovery of gelatin, blood plasma and blood meal, for edible and inedible rendering processes as well as for the processing of flotation sludge, animal bones or cooking broths. In order to guarantee optimum yields and a high quality of the produced raw fats we provide i.e. complete wet rendering lines for the recovery of edible fats. Those lines are adapted by our process engineers to individual customer requirements and the specific raw materials used. The complete process, from feeding the plant, the removal of any metallic foreign objects and naturally all separation stages right through to the final testing of the purified fat, can be completely automated and is of course CIP-compatible.

━ Abbatoir waste
━ Animal bones
━ Animal blood
━ Bone flesh
━ Cooking broths
━ Edible fats
━ Fat extractor contents
━ Gelatine
━ Inedible fats
━ Lanoline
━ Machine leather cuttings
━ Processing of flotation sludge
━ Wool fat


Both separators and decanters have been using for fish oil and fish meal processing more than 100 years ago. Huading Separator has developed, manufactured and delivered more than 1000 centrifuges for the fish oil industry while at the same time successfully and innovatively optimizing the processes. Whether using the Conventional process, Whole fish or Three-phase decanter process, the centrifuges of Huading Separator make sure that our customers always obtain the most efficient separation of the dry substance (protein), fat and water while keeping the contact time to a minimum. Huading Separator offers even new and worthwhile solutions for the processing of small capacities.

━ Fish meal
━ Fish oil
━ Liver oil
━ Processing of flotation sludge
━ Surimi


Modern Processes for recovering oils and raw fats are characterized by the broad application of centrifugal clarifying and separating technology. The quality of the end product depends on the production process as well as on the nature of raw materials and products used. Huading Separator offers value-adding solutions with a wide range of separators and decanters right through to complete process lines.

The practical production methods and technologies have to be as varied as the different fats and oils. The centrifuge though is always the heart of the installation. As technology leader Huading Separator has proven to be an innovative and powerful partner when it comes to the processing of animal by-products, fish as well as the recovery of vegetable crude oils like olive, avocado or palm oil or the cleaning of frying oils. Whether 2-phase or 3-phase decanters, self-cleaning separators with maximum automation or discontinuously operating systems, our customer will always find the most cost-effective and best technological solution.

━ Abattoir waste
━ Animal bones
━ Avocado oil
━ Blood meal
━ Blood plasma
━ Bone flesh
━ Clarification of frying fat
━ Cocoa butter
━ Cooking broths
━ Fat extractor contents
━ Fish meal
━ Fish oil
━ Flotation sludge from the fish and meat
━ Gelatine
━ Lanoline
━ Liver oil
━ Machine leather cuttings
━ Man-made fats
━ Nut oils
━ Olive oil
━ Palm oil
━ processing industry
━ Sinclair’s glue
━ Surimi
━ Vegetable fat


The wide variety of oils requires equally varied practice-oriented production processes and technologies. To cover this demand, Huading Separator designs and manufactures customized solutions. The heart of the plant is always the centrifuge. Whether it is a self-cleaning separator with the highest degree of automation or a discontinuous system, every customer will find the best economic and technological solution for his production duty – from a separator with a daily capacity of 30 t for small mill operators up to the separator with a capacity over 1000 t per day for large refineries.

Processes for vegetable oil processing:
━ Press oil clarification
━ Degumming
━ Neutralisation
━ Alcoholic neutralisation
━ Washing
━ Dewaxing
━ Dry fractionation
━ Soapstock splitting

Processing of:
━ Soy oil
━ Linseed oil
━ Sunflower seed oil
━ Cotton seed oil
━ Corn seed oil
━ Olive oil

Applications in the oleochemical industry:
━ Connemann process
━ Epoxidised oils
━ Glycerine
━ Mono/diglycerides
━ Soap
━ Fatty acids
━ Fatty alcohols
━ Wet fractionation


Better diesel for powerful engines – Diesel is the most important fuel for engines not only in industry but also in agriculture. But diesel is not always diesel. Especially in the tough conditions encountered in agriculture and industry, diesel is frequently contaminated with condensation water and dirt particles mainly during transportation and storage.

This problem is particularly serious in large farming operations where tractors and machinery are increasingly being used. What is the point of specifying the degree of purity of the diesel in the manual as an obligation under warranty when only low-grade diesel qualities are available locally?

The manufacturers of vehicles and engines are increasingly adopting the practice of incorporating disc separators in their offers to buyers in the agricultural sector. These machines are capable of dealing with this problem, even in extremely remote regions. The farms can therefore immediately feed the diesel oil from the tankers through a disc separator and store the purified diesel. Alternatively, the contaminated diesel could be intermediately stored and circulated through the separator later into a fresh tank.

The smallest disc separator operates at a capacity range around 1000 l/h. This amply covers the requirements of farming operations. And, since the separator is also available in a light, transportable mobile version, it can be flexibly used from farm to farm.

Huading Separator supplies practical, customized solutions not only for the agricultural sector but also for large petrol stations (for diesel locomotives and busses) and for mining.


Spent /waste oil is generally denoted as an oil which, due to changed properties, no longer meets the original requirements (e.g. oiliness), and whose characteristics cannot be further enhanced by treatment. Potential sources are spent oils from engines and gearboxes, oily emulsions, bilge water, tank residuals etc. These waste oils have different densities, viscosities and impurity levels.

Waste oils can be treated or refined by means of chemical-physical processes or used as high-grade fuels in the cement industry or in smelters. The waste oil ordinance stipulates the priority of the material treatment of waste oils by means of refining in as far as this does not conflict with technical and economic as well as organizational constraints. The composition of the waste oil as well as the level of contaminants in the waste oil likewise determine the method of disposal.

If the waste oil is to be incinerated, all impurities such as solids and water must be removed beforehand. During incineration, the water content lowers the calorific value. The solids lead to deposits in the boiler, clogging of the nozzles and diminish the thermal efficiency.

Waste oil can be treated by means of mechanical centrifugal technology. Decanters and self-cleaning separators can be used for separating solids and water from waste oil.


Clean oil for smooth operation – Water and dirt particles act as a catalyst for the lube or hydraulic oil used. If condensation or leakage water enters the oil through the narrow gaps of the hydraulic system, corrosion can easily result.

Apart from water, particles produced as a result of wear to the metal components as well as dust from the environment can enter the liquid. In time, the quality of the oils will be impaired by the impurities and liquid foreign matter like water which will ultimately lead to blockage and malfunctions in the system.

The result is machine failure and the associated costs for maintenance and loss of production.

The contaminated oil must be replaced with fresh oil. This creates additional costs for waste oil disposal as well as for the purchase of new oil.

To ensure problem-free functioning of the lubricating and hydraulic systems, a lube oil and hydraulic oil free from water and foreign matter must be used. With the aid of centrifugal technology, these fluids can be rid of solids and water. The separators do this very efficiently. They remove metal particles up to 1 µm.

Steel works or paper mills, for example, improve their efficiency using this kind of oil treatment.


Separation instead of disposal environmental protection by washing lye cleaning and oil recycling

Certain surface treatment processes in the metal-processing industry require thorough cleaning. Treatment of the cleaning agents used not only provides environmental protection in the long term; it also significantly reduces costs.

Centrifugal separators are suitable for cleaning washing lye. They process the washing lye of a hot defatting bath and the resultant drawing oil from the deep drawing process.
━ Significantly reduced washing lye requirement
━ Reduced disposal costs
━ Improved cleaning effect as the circulating washing lye is always clean
━ Solids and oil are discharged in concentrated form
━ Lower costs for cleaning the washing lye circulation system
━ High surface quality due to uniform cleaning effect


Centrifugal separation for coolant emulsion and cooling oil

Coolant emulsions are used both in a wide range of cutting and non-cutting processes. They serve to reduce the frictional or forming energy, heat dissipation as well as flushing the filings away from the point being machined.

Coolant emulsions are made up of various constituents (emulsifiers, stabilizers, anti-corrosive additives, EP additives and mineral oil components). These emulsions are more or less susceptible to putrefaction and decomposition. Contaminants such as metal abrasives and extraneous liquids (hydraulic oil, lubricating oil) accelerate the aging process, i.e. degradation of emulsifiers, acid formation, discolouration plus odour nuisance and skin irritations caused by handling.

The primary preventive measure against aging is absolute cleanliness in the installation. To keep the coolant emulsions in a usable condition, solids and tramp oil must therefore be removed as soon as possible.

Both tasks can be fulfilled simultaneously with separators. The solid fines and tramp oil are separated in one single step.