Automatically Conical screw PVC Conduit Extrusion line

Automatically Conical screw PVC Conduit Extrusion line

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Transportation:: Ocean, Land

Port:: Shanghai

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Basic Info

Place of Origin:	JIANGSU, CHINA
Payment Type:	L/C,T/T,D/P,Western Union
Incoterm:	FOB,CIF,EXW,CFR
Certificate:	CE&ISO
Transportation:	Ocean,Land
Port:	Shanghai

Product Description

Automatically Conical screw PVC Conduit Extrusion line

What is plastic extrusion?

Plastics extrusion is a high-volume manufacturing process in which raw plastic is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weatherstripping, fencing, deck railings, window frames, plastic films and sheeting, thermoplastic coatings, and wire insulation.

This process starts by feeding plastic material (pellets, granules, flakes or powders) from a hopper into the barrel of the extruder. The material is gradually melted by the mechanical energy generated by turning screws and by heaters arranged along the barrel. The molten polymer is then forced into a die, which shapes the polymer into a shape that hardens during cooling.[1]

Now let’s learn about PVC pipe extrusion machine from 3 aspects: application, configuration, and types.

What is the application of PVC pipe extrusion machine:

The PVC pipe extrusion machine is used to produce pipes with different diameters by replacing extrusion dies. It can produce every size of pipe in the area of the agricultural water supply system, architectural water supply system, pavement of cables, etc. It can produce the conduit pipe, pressure pipe, water pipe, drainage pipe, etc.

What is the configuration of PVC pipe extrusion machine configuration:

The PVC pipe extrusion machine is actually a series of main machines with optional auxiliary machines. (Pls refer to the table below. )So we also call it the PVC pipe extrusion machine line.

Configuration table:

No.	Machine Name	Quantity
1	DTC series screw feeder	1 set
2	conical twin screw PVC pipe extruder	1 set
3	PVC pipe extrusion die	1 set
4	Vacuum calibration tank	1 set
5	PVC pipe extrusion haul-off machine	1 set
6	PVC pipe cutter	1 set
7	Stacker	1 set
Optional Auxiliary machines
1	High speed mixing machine	1 set
2	Crushing machine	1 set
3	Milling machine	1 set

Now let’s introduce 6most important machines in the table in detail.

6 most important machines:

1. Conical double screw extruder adopts 38CrMoAlA material screw and barrel, nitriding process. It is a special design for PVC powder extrusion. By changing the die and auxiliary machines, it can produce many products like PVC profile, PVC ceiling, PVC trunk, PVC door, PVC foam board, etc.

2. PVC pipe extrusion die is made of 40Cr, which is used to modify and shape the final products.

3. The vacuum calibration tank body is made of stainless steel. The tank is equipped with a vacuum pump and a water pump. It is used to cool and size the pipe with a vacuum environment. It works together with pipe die parts sizing sleeve to make the PVC pipe into wanted diameter and into a round shape. It can also a little adjust pipe thickness. Its cover material is cast-aluminum.

4. the haul-off machine has many models to choose from according to pipe OD like 2-claws, 3-claws, 4-claws, 6-claws, 8-claws, 10-claws, etc. This part is used to haul the pipe at the same speed as the extrusion. Sometimes it can have the function to adjust PVC pipe thickness a little. When its speed is higher than extruder, the pipe wall becomes thinner while its speed is lower than extruder, pipe wall becomes thicker. Hauling speed is controlled by ABB inverter.

5. The planetary cutter of the PVC pipe production line is used to cut pipes into wanted length such as 3m, 3.5m length, etc. It is controlled by PLC. (Want to know how to operate cutter, click planetary cutter)

6. Stacker is made of stainless steel. It is used to place the pipe products after cutting.

TECHNICAL PARAMETER:

Model	Pipe diameter	Extruder	Extruder power	Capacity
LB-32A	16-32(four)	SJ65/132	37AC	250
LB-32B	16-32(four)	SJ80/156	55AC	350
LB-50A	16-50	SJ45/90	15AC	100
LB-50B	16-50(double)	SJ51/105	18.5AC	150
LB-50C	16-50(double)	SJ65/132	37AC	250
LB-63A	16-63	SJ51/105	18.5AC	150
LB-63B	16-63(double)	SJ65/132	37AC	250
LB-160	50-160	SJ65/132	37AC	250
LB-250	63-250	SJ65/132	37AC	250
LB-315	110-315	SJ80/156	55AC	350
LB-630	315-630	SJ92/188	110DC	800
LB-800	560-800	SJ105/216	160DC	1100

MAIN COMPONENTS OF PRODUCTION LINE

Conical twin-screw extruder: It equipped with forced fixed-quantity material feeding system, automatic temperature control system, vacuum exhaust system and automatic speed control system.

This structure assures accurate controlling for the material temperature, plasticization stability and greatly improving production speed. The main motor is direct convertor or frequency convertor.

PVC extruding molds: Material is high quality 40Cr. Molds surface is dealt with polishing and chrome plating. it adopts the structure of multiple head spiral. The melt has low pressure. Extruding at high quantity, the die head still maintain low temperature.

Vacuum calibrating water tank: The material of body is high hardness and good quality stainless steel board. It is high-pressure resistance, corrosion-resistance and two-stage for large diameter pipe.

Electricity controls water temperature.

The nozzle material is ABS engineering plastic. The frame of the machine can be adjusted three dimensions. The moving from front to back adopt cycloid reducer drive and up & down and left & right adopt screw adjustment.

Water spray cooling tank: The body is made of stainless steel and the shade is transparent soft PVC curtain. Stainless steel float adjusts water level and electricity controls water temperature. The nozzle material is ABS engineering plastic.

Haul-off machine: It adopts frequency conversion approach. Every traction frame transfers with chain which ensures every track moving simultaneously. It is pneumatic flexibility clamping.

Cutting machine: It is planetary cutting for large diameter. The blade takes rotation and cutting part and inserting blade part take revolution. It has angle cutting structure, pneumatic aluminum half clamping and cleaning device.

Control system: We can offer Siemens PLC controlling system which is intelligent controlling system. Also we can offer ordinary controlling system which use Siemens electrical parts, Omron temperature controller. Operation is simple.