Extrusion and puffing equipment includes single-screw extruder, twin-screw extruder and multi-screw extruder. Currently, single-screw and twin-screw extruders are more widely used. Triple-screw extruder is a new product that has appeared in recent years.
Although the production cost and energy consumption of single-screw extruder are low, the process parameters are difficult to control, the machine is not easy to clean, the product shape is poor, and the raw material requirements are high. It is mainly used for materials with high starch content and is not suitable for oil crops.
| Model | Power | Feeder | Cutter | Capacity | Dimension | Weight |
| DGP40 | 4KW | 0.4KW | 0.4KW | 0.04-0.05T/H | 1400*1030*1200MM | 240KG |
| DGP50 | 11KW | 0.4KW | 0.4KW | 0.06-0.08T/H | 1400*1030*1200MM | 320KG |
| DGP60 | 15KW | 0.4KW | 0.4KW | 0.12-0.15T/H | 1450*950*1430MM | 480KG |
| DGP70 | 18.5KW | 0.4KW | 0.4KW | 0.18-0.25T/H | 1600*1400*1450MM | 600KG |
| DGP80 | 22KW | 0.4KW | 0.75KW | 0.3-0.35T/H | 1850*1470*1500MM | 800KG |
| DGP90 | 30KW | 1.1KW | 1.5KW | 0.4-0.45T/H | 1900*1500*1600MM | 1200KG |
| DGP100 | 37KW | 1.1KW | 1.5KW | 0.45-0.5T/H | 2000*1600*1600MM | 1500KG |
With the development of extrusion and puffing technology, twin-screw extruder and triple-screw extruder appeared. Among them, triple-screw extruder has good mixing characteristics, energy saving and environmental protection, high production efficiency and promising prospects, but its design and mechanism of action are not well studied. The technology is still in the theoretical stage and needs further in-depth research before it can be applied to actual production. Twin-screw extruder is widely used for its good performance, high efficiency, low cost, good product quality and wide application range.
Extrusion and puffing technology is applied to the feed industry mainly for the production and processing of pet food, urea feed for ruminant protein supplements, etc. It has incomparable advantages over traditional processing methods in processing special animal feed, aquatic feed, early weaned pig feed and feed resource development. The application of extrusion puffing technology in the feed industry has greatly increased the utilization rate of resources, high production efficiency, reduced costs, and the obtained feed has comprehensive nutrition and good product shape.