PVC Electronic Wire Extrusion Line

PVC Electronic Wire Extrusion Line

The PVC electronic wire extrusion production line is a continuous production system dedicated to manufacturing polyvinyl chloride (PVC) insulated electronic wires. It forms insulated wires with precise dimensions, smooth surfaces, and stable electrical properties by melting and uniformly coating PVC compounds on the surface of metal conductors such as copper wires. This production line is the most common and widely used extrusion equipment for producing general electronic wires, suitable for manufacturing wires of various standard specifications.

Main Components:

Pay-off System
Function: Unwinds copper conductors (solid or stranded) with tension control to prevent deformation.
Types: Passive pay-off (dependent on traction force) or active pay-off (independent tension control).
Preheating Device
Function: Preheats the conductor to enhance PVC adhesion and reduce residual stress.
Extruder
Screw: Designed for PVC characteristics (typically 20:1 L/D ratio, 2.5:1–3:1 compression ratio).
Barrel: Sectional heating with temperature control (150–200°C) to ensure uniform PVC melting.
Drive System: Provides stable rotation speed to ensure consistent melt output.
Die Head and Mold
Function: Shapes molten PVC into a continuously and concentrically coated insulation layer.
Mold Types: Pressure-type (tight coating) or tubing-type (smooth surface).
Cooling Trough
Function: Solidifies the insulation layer through staged water cooling (hot water → cold water) to prevent defects.
Capstan (Puller)
Function: Maintains constant pulling speed to ensure uniform wire diameter (caterpillar or wheel type).
Spark Tester
Function: Detects pinholes or breaks in the insulation layer via high-voltage testing.
Diameter Gauge
Function: Monitors outer diameter in real-time using laser and provides feedback for adjusting extrusion parameters.
Inkjet Printer
Function: Prints markings online (e.g., specifications UL1007, voltage 300V, temperature 80°C).
Take-up System
Function: Winds finished wire with constant tension and supports automatic reel change.

PVC Electronic Wire Extrusion Line Datasheet

Model	30	40	50	60	70	80	90
Screw Diameter (mm)	φ30	φ40	φ50	φ60	φ70	φ80	φ90
Screw L/D Ratio	25:1	25:1	26:1	26:1	26:1	26:1	26:1
Extrusion Amount (kg/hr)	25	40	70	100	140	200	250
Outlet Wire (mm)	0.2-1	0.4-3	0.8-5	1-8	2-15	3-25	5-35
Total Power (KW)	18	20	25	33	40	55	63
Traction Power (KW)	2.2	2.2	4	4	4	5.5	5.5
Production Speed (m/min (Max.))	600	600	600	500	500	300	300
Take-up Spool (mm)	φ200-400	φ300-500	φ400-630	φ400-630	φ500-630	φ800-1000	φ1000-1250

PVC Electronic Wire Extrusion Line Application

The PVC electronic wire extrusion production line is a continuous production system dedicated to manufacturing polyvinyl chloride (PVC) insulated electronic wires. It is the most common and widely used extrusion equipment for producing general-purpose electronic wires. Its main applications are as follows:
Household Appliances:
Internal wiring for refrigerators, washing machines, microwaves, etc.
Consumer Electronics:
Power cords, internal connecting wires for televisions, audio equipment wiring.
Low-Voltage Power Systems:
DC power cables, battery connection wires, LED lighting wiring.
Industrial Instrumentation:
Control cabinet wiring, wire harnesses, equipment interconnection cables.
Typical Products: UL1007, UL1061 (American standard), AVR (Chinese national standard), H05V-K (European standard).