Puffed food in recent years the development of quite rapid, has become a separate food category, as the main means of processing puffed food extrusion puffing machine is also a lot of types. China's extruded puffed technology as a whole is still very backward compared with foreign countries. The production capacity of the equipment, technology, operability, etc. is relatively poor. Extruder in the design and production process, due to changes in the unknown factors rely heavily on a combination of empirical data and formulas, in the consideration of processing convenience, assembly factors make the extruder produced by different manufacturers of its industrial parameters and quality has a great deal of difference in a timely manner with the same factory production of the puffing machine its process parameters may not be the same. evalsuation of extrusion puffer due to just consider the following points

1, has a high capacity of long production, unit energy consumption should be small.

2, the adaptability of raw materials to be strong.

3, a more complete control system, can accurately and accurately coordinate and control the various actions of the extruder, so that the extruder's temperature, pressure, screw speed and output and other parameters are strictly controlled within the range of process conditions specified, to obtain the required product quality.

4, longer service life of the equipment, extrusion puffing one of the biggest problems is the screw and sleeve of a long time and under high temperature conditions of anti-wear problems.

5, the machine must have sufficient strength and rigidity, reasonable and compact structure, good operating performance and maintenance performance and low maintenance costs.

6, the processing accuracy of parts, electrical parts, the quality of purchased parts.

7, the appearance of the equipment noise, vibration, volume.

8, examine whether the equipment manufacturers have the production conditions, whether there is equipment production identification certificate, enterprise standards and other related materials.

    Another extrusion puffer room a more adaptable processing equipment. But for a certain geometric structure of the screw, the material can be processed is limited. When the variety of materials, composition and product quality is determined, the best extrusion puffer only one, so the scope of adaptation of the extrusion puffer is limited, to design a universal extruder room is very difficult. Extruding and expanding machine is the most important equipment in the processing line, which can be operated independently. But which the process effect is directly affected by its before and after the auxiliary processing equipment process effect, and even improper processing, extruder often can not operate normally, so a reasonable equipment selection, not only lies in the normal selection of the host, the production line of each auxiliary equipment to match and determine the process parameters should not be ignored as well.