Double/dual PVC pipe production line

PVC double pipe extrusion production line  

The process flow of UPVC pipe production line as following:

Mixing → Extruding & Molding→ Vacuum Calibration and Cooling → Printer→ Hauling off→ Cutting →belling (optional) → final PVC pipe

A. Necessary Machines for UPVC Pipe Extrusion Line

• 1 set of Conical Double-Screw Extruder – SJSZ65/132

• 1 set of material autoloader

• 1 set Double cavity Mould (according customer size and thickness )

• 1 set of Vacuum Calibration Tank - ZK-63

• 1 set of Hauling and cutter Machine – QY-63

• 1 set of stacker

1. SJSZ65/132 Conical Double Screw Extruder 

Screw and barrel
1	Screw Diameter	mm	￠65/132
2	Screw Length	mm	1440
3	Screw rotation speed	r/min	1-38
4	Material of Screw and Barrel	/	38CrMoAlA  Nitrogen Treatment, polishing
5	Depth of nitration case	mm	0.6-0.8mm
6	Barrel Heating	/	Casting Aluminum Heater
7	Heating zones	/	4zone
8	Heating Power	kw	24
9	Cooling power	kw	0.25kw*3
10	Cooling	/	blower cooling
11	Screw core temperature control	/	Automatic cycle temperature control
12	Screw core temperature adjusting	/	By circle conduction oil
Gear box
1	Gear	/	Hard tooth face
2	Brand of gear box	/	Jiangyin gear box company
3	Shaft	/	NSK of Japan
4	Safeguard of screw	/	With Safeguard device for screw
Feeding device
1	Fixed quantity Feeding system	/	1.1KW, screw fixed-quantity feeding
2	Speed control way	/	Frequency inverter
Motor and electric system
1	Motor Power	KW	37(AC motor)
2	Speed adjusting mode	/	Variable frequency conversion
3	Output Capacity	Kg/h	180-232
4	Vacuum exhaust system	/	1.5kw, vacuum pump
6	Frequency inverter	/	DELTA
7	AC contactor	/	Siemens
8	Voltage	/	According to requirement
9	Extruder axis height	mm	1000
10	Temperature meter		OMRON /DELTA
Self protective system
1. Over current protective of motor
2. Over pressure protective of screw.

2. Autoloader

Item	Description	Unit	ZJF-300
Application: load raw material into extruder hopper
1	Motor power	KW	1.5
2	Rated feeding capacity	Kg/h	300
3	Spring diameter	mm	36
4	Spring length	m	3-5
5	Max feeding capacity	Kg/h	450
6	Store hopper volume	kg	150

3.  Double cavity Mould

Item	Description			One mould double output
1	Available pipe outer diameter
2	Standard			According to customer request
3	Pressure and Wall thickness			See the following table
4	Mould material			40Cr
5	Material of the calibrator			Stannum Bronze
Mold size as the followings details
No	OD	Wall Thickness	Wall Thickness	Wall Thickness	Wall Thickness
1	20mm		/	/	/
2	25mm		/	/	/
3	32mm		/	/	/
4	40mm		/	/	/
5	50mm		/	/	/

Size and thickness according customers request .