Extrusion Parallel Twin Screw Barrel
Twin screw extrusion
Simply described, the twin-screw extruder is a machine consisting of two co-penetrating and self-cleaning identical screws which are mounted on shafts and rotate in the same direction in a fixed closed housing called [barrel" . The twin-screw extruders operate continuously with very short residence times.
The diameter of the screws in the conical twin-screw extruder is larger at the feed end and smaller at the die end.
Extrusion Parallel Twin Screw Barrel,Parallel Twin Screw Barrel,Twin Screw Parallel,Parallel Twin Screw Ningbo Jinyi Precision Machinery Co., Ltd. , https://www.jinyi-machinery.com
The engine is still the main source of profit for Weichai Power, and the proportion of net profit is about 70%. It is expected that the engine gross profit margin will rebound in the second half of the year. In the first half of the year, it benefited from the high growth of heavy trucks and construction machinery, with engine sales reaching 216,600 units, including 137,000 heavy-duty engines, a year-on-year increase of 60.4%.
Weichai Power achieved a sales revenue of 20.978 billion yuan in the first half of 2008, a year-on-year increase of 36.75%; a net profit of 1.66 billion yuan, a year-on-year increase of 94.95%; earnings per share of 3.19 yuan, a year-on-year increase of 71%, exceeding market expectations; net per share The asset was 14.87 yuan, which was the highest among listed companies in the first half of this year. The high boom in heavy trucks and construction machinery in the first half of the year led to a significant increase in the sales of engines and transmissions, which was the main reason for the company’s substantial increase in net profit.
Under the background that the prices of raw materials such as steel may fall back, the gross margin of the company's products will recover. Weichai's mid-year report shows that the gross profit rate of engines, especially gearboxes and whole vehicles, is greatly affected by the increase in raw material prices in the first half of the year, among which the proportion of raw materials such as steel in the entire vehicle and engine is 10% and 12% respectively. If steel prices decline in the second half of this year or next year, the gross profit margin of Weichai Power Products will recover.
View related topics: Weichai Power: Expanding Auto Parts Gold Industry Chain
The parallel twin screw and the conical twin screw
According to whether the screw axis is parallel or not, the twin screws can be divided into the conical twin screw and the parallel twin screw, where the parallel twin screws are divided into fully intermeshing type, partly intermeshing type, non-engaged type, etc. In the case of parallel screws, the feed end and the die end have the same diameter.