single screw extruder machinery for fish food processing

Who we are ?

Jinan Qidong provides a wide range of  twin-screw extrusion fish feed systems. It has played a pioneering role in the innovation and development of fish feed technology since the 70’s. Qidong lines are designed to produce feed that meets the nutritional requirements of fish and other aquatic animals, with precise size and density control, whilst respecting the highest standards of water quality and sustainable development.

What Indeed It Is ?

Extruder is  Is a kind of puffed food processing equipment,To process such as rice, corn, soybeans, wheat, etc of daily life.By transforming the mechanical energy into heat energy, the food been squeezed and cooked when the heat generated by the forced   machine  rotation is strong enough  , the expanded  volume  in size of  puffed food is the most obvious feature  

How about the classification ?

• Cereal puffing machine: mainly used for puffed corn,  rice and corn 

• Flour extruder: it is mainly used in puffed white  wheat  flour, which is also known as crispy  machine

• Soybean extrusion machine, its mainly  for expanded soybean , different from  the grains puffing machine, soybean extrusion machine contains degreasing device  based on soybean oil content 

• Feed extrusion machine: are mainly used for extrusion of fish, shrimp, pet food, and other special cultivation with pellet feed production.

     ♦ Single screw  type feed  extrusion machine.  mainly used for puffed snack food, livestock and poultry feed , can also be used as  the pretreatment of the raw material of  a vegetable and drinking alcohol production     

     ♦ Twin-screw  type feed extrusion machine, mainly used in high-grade aquatic products, pet food production and especially the processing  of high viscosity materials

What  Function of the twin screw extruder is laudable?

It is widely used in food, feed and industrial field due to an extruder‘s functional diversity, on the extruder (dry, wet, single or twin screw) mechanical  structure basis, Qidong would like to  introduce one or a set of functions  of  that  in the food or feed processing :

♣Unifying and coacervation : during the extrusion process, food or feed ingredients can be closely integrated and agglomerate into discrete pieces.

♣ Outgassing: food or feed ingredients containing tiny bubbles  will be removed  in the process .

♣ Dehydration:  the water content based on the original will lose 4-7%  by the expanded process in general food or feed

♣ Expansion effect: extrusion machine operating condition and configuration can obviously affect the pet feed and aquatic feed porosities (such as heavy or buoyancy)

♣ Gelatination:  the cooking during extruding can make the starch   (from various sources, such as tubers or grain pasting)  in the food or pet food gelatinized by more than 90%

♣ Grinding effect:  raw materials can be grinding to a certain extent in the extruder  in the food or feed  processing

♣ Homogenizing effect:  the homogenization effect of the extrusion machine  can change not attractive raw material structure to a more acceptable form

♣  Mixing: in the puffing process, by choose a  screw  from a wide variety,the level and  amount of mixing result can be expected

♣ Pasteur type sterilization and sterilization: in the food or feed puffing process, raw materials are deeply sterilized 

How many kinds of device in this field ?

Any advantages compared with other similar machinery?

1)  Modem design with regularly upgrade,compact structure along with multiple function, high production efficiency

2)Reliable, durable, low failure rate, convenient operation and maintenance

3)Simple and convenient use, smooth transmission, low noise

4)Main part is made of special alloy material after heat treatment and, long service life , low the production cost 

5)integrated with steam heating system ,high mixing rate and cooking level,dry and wet extrusion mold available

6)Screw design with a strong self-cleaning function, screw  groove can realise self-purify, need no stop for cleaning when change of formulation , screw with strong pumping function, feeding faster than ever, stable product inner quality  

7)Screw discharging mouth adopts modular design, easy to adjust, the adjusting price is affordable

8)equipped with automatic mixing,dosing,batching,feeding and packing system

9)Independent cutting device connected with the extruder body .convenient, quick, variable cutting  speed ,  easily adjust the cutting knife and clearance between the template

10) stability more than 2 hours in water for floating fish feed pellet

What matters should the owners be facing after long period of usage?

1>  bearing can be worn on different grade . need to adjust bearing clearance

2>  steam flow back into the feeder, cause the clogging in feeder

3> Air-flow extruder and other ring or flat die pellet mill machine without pre-conditioner get stuck frequently 

4>  different materials require for  different pressure, temperature and screw configuration settings, screw should make a corresponding adjustment

What’s Qidong‘s best offer for whole process service?