wpc board extruder machines made in china
PVC foam board extrusion machine: Work flow: Mixer→SJSZ series extruder→Coat-hanger type mould→Calibration cooling platform→cooling rollers and edge-cutting device→Haul off→stacker Recommeded board specifcation: W*L*T:1220mm*2440*(3mm,5mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,25mm,up to 35mm) Usage: Could be used as decoration board,kitchen board,construction board. Name Qty Remarks Host machine 1 SJSZ80/156 conical double screw extruder 1set Zhoushan 2 Board mould 1unit T-shaped 3 Mould temperature controller 2set 4 Cooling sizing platform 1set 5 20P chiller 1set 6 Cooling bracket(including guide rail) 1set 7 Haul off 1set 8 Transverse cutter 1set With dust collector 9 Edge cutter 1set With dust collector 10 Conveying Stacker 1set Auxiliary machine(optional) 11 SHR500/1000 mixer 1set 12 SWP380 crusher 1set 13 MF500miller 1set 14 Air compressor 1set Note: 1.The total installed capacity is 315kw 2.This machine could produce both furniture board and construction board. 3.Achieve different desinty of the foam board by adjusting the proportion of the formula Technical parameter: Model SJSZ-80/156 Board width(mm) 1220 Board thickness(mm) 3-25 Extruder SJSZ-80/156 Extruding capacity(kg/h) 300-350kg Main motor power(kw) 75 Machine Picture
The conical twin-screw extruder has stable performance, which can make the melt plasticize well at a lower temperature. The cast aluminum heater is installed on the cylinder, which has high thermal efficiency, fast and uniform temperature rise, and is equipped with cooling fan.
In the plastic extrusion molding equipment, the plastic extruder is usually called the main machine, and the supporting equipment plastic extrusion molding machine is called the auxiliary machine. After more than 100 years of development, the plastic extruder has been derived from the original single screw, such as twin screw, multi-screw, and even no screw. Plastic extruder (main machine) can be used with various plastic molding auxiliary machines such as pipes, films, holding materials, monofilaments, flat filaments, packing belts, extruded nets, plates (sheets), profiles, granulation, and cable coating. Match and form various plastic extrusion molding production lines to produce various plastic products. Therefore, plastic extrusion molding machinery is one of the widely used machines in the plastic processing industry, now and in the future.
The main machine of a plastic extrusion machine is an extruder, which is composed of an extrusion system, a transmission system and a heating and cooling system.
The extrusion system includes a screw, a barrel, a hopper, a head, and a die. The plastic is plasticized into a uniform melt through the extrusion system, and is continuously extruded by the screw under the pressure established in the process.Screw: It is the most important part of the extruder. It is directly related to the application range and productivity of the extruder. It is made of high strength and corrosion resistant alloy steel.
The extruder divides the machine head into a beveled machine head (with an included angle of 120o) and a right-angle machine head according to the angle between the head material flow direction and the centerline of the screw. The shell of the machine head is fixed to the fuselage with bolts. The die in the machine head has a core seat and is fixed to the wire inlet port of the head with a nut. The front of the core seat is equipped with the core, the core and the core seat. There is a hole in the center for passing the core wire. There is a pressure equalizing ring on the front of the machine head for equalizing pressure. The extrusion molding part is composed of a die sleeve and a die sleeve. The position of the die sleeve can be adjusted by the bolt through the support In order to adjust the relative position of the mold sleeve to the mold core, it is easy to adjust the uniformity of the thickness of the cladding layer. The head is equipped with a heating device and a temperature measuring device.
For the extruder with the same screw diameter, the high-speed and high-efficiency extruder consumes more energy than the conventional extruder, doubles the motor power, and the size of the reducer must be increased accordingly. But high screw speeds mean low reduction ratios. For gearboxes of the same size, compared with gearboxes with low reduction ratios, the gear modulus increases, and the capacity of the gearboxes to withstand load increases. Therefore, the increase in volume and weight of the reducer is not linearly proportional to the increase in motor power. If the amount of extrusion is used as the denominator, divided by the weight of the reducer, the number of high-speed and efficient extruders is small, and the number of ordinary extruders is large.
In terms of unit output, the motor power of the high-speed and high-efficiency extruder is small and the weight of the reducer is small, which means that the unit production cost of the high-speed and high-efficiency extruder is lower than that of ordinary extruders.
1.The extruder usually uses electric heating, which is divided into resistance heating and induction heating. The heating sheet is installed in the body, neck and head. The heating device heats the plastic in the cylinder externally to increase the temperature to reach the temperature required for the process operation.
2.The cooling device is set to ensure that the plastic is in the temperature range required by the process. Specifically, it is to exclude the excess heat generated by the shear friction caused by screw rotation, so as to avoid the temperature being too high to make the plastic decompose, scorch, or shape difficult. The barrel cooling is divided into two types: water cooling and air cooling. Generally, small and medium-sized extruders are more suitable for air cooling, and large-sized ones are mostly water-cooled or combined with two forms of cooling. To stabilize the amount of glue and improve product quality; but the cooling at the hopper is to strengthen the transport of solid materials, to prevent plastic particles from sticking due to temperature rise, and to ensure the normal operation of the transmission part.
Plastic extruder can be divided into single screw extruder, twin screw extruder and multi-screw extruder according to the number of screws. At present, single screw extruder is the most widely used and suitable for extrusion processing of general materials. The twin-screw extruder has less heat generated by friction, more uniform shearing of the material, larger screw conveying capacity, more stable extrusion capacity, longer material stay in the barrel and uniform mixing.
The single-screw extruder occupies an important position whether it is a plasticizing granulation machine or a molding processing machine. In recent years, the single-screw extruder has developed greatly.
The twin screw extruder has good feeding characteristics, is suitable for powder processing, and has better mixing, venting, reaction and self-cleaning functions than the single screw extruder. It is characterized by processing plastics and blends with poor thermal stability. Shows its superiority when the material. On the basis of twin-screw extruders, in order to more easily process blends with poor thermal stability, multi-screw extruders, such as Guanghua Plastic Extruder, have been developed.According to the number of screws, it is divided into single-screw extruder, twin-screw extruder and multi-screw extruder;
In the past 10 years, many experts in SKY WIN have concentrated onWPC extrusion lines(granulators, extruders, upstream and downstream machines, etc.) and now the company has accumulated a lot of experience on WPC equipment, molds, technical formula, and products.
JWELL plastic extrusion factory adheres to the comprehensive implementation of "zero defect" quality management, strengthening the efficient quality control of each link. Through more than 43 years of hard work, JWELL Plastic Extrusion Machinery Company and Factory develops many new machine and extruders in the plastic industry. It makes us more experienced and professional. Screw and barrel, roller, T-die and so on are the core part of the extrusion machinery for plastic. JWELL plastic extrusion company invests heavily in the device of pressing these core parts, from the core parts" quality improvement and upgrade, Push production technology upgrading continuously. Nine large metal processing plants Three heat treatment nit riding c International Advanced Processing Equipment, ensure the accuracy and quality of each component.
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