YJV32 Armored Power Cable Extrusion Line

YJV32 Armored Power Cable Extrusion Line

YJV32 Cable Full Name: Copper Core XLPE Insulated Fine Steel Wire Armored PVC Sheathed Power Cable. It is specifically designed for special applications requiring tensile strength.
Letter Meanings:
YJ: Insulation material is cross-linked polyethylene (XLPE).
V: Inner/outer sheath material is polyvinyl chloride (PVC).
3: Represents fine steel wire armor. This is the core difference between it and YJV22 (steel tape armor).
2: Represents the polyvinyl chloride outer sheath (PVC).
(Simplified understanding: The first digit "3" indicates the armor layer is fine steel wire, and the second digit "2" indicates the outer sheath is PVC).
Rated Voltage: Commonly used at 0.6/1kV.
Operating Temperature:
Long-term allowable operating temperature: ≤90°C.
Short-circuit temperature (max. 5s duration): ≤250°C.
Main Features:
Core Advantages:
Extremely High Tensile Strength: The internal fine steel wire armor layer enables the cable to withstand significant mechanical pulling force, which is its most notable feature.
Good Compression Resistance: Also provides good stress resistance and anti-chewing capabilities, though slightly inferior to the double steel tape armor of YJV22.
Excellent Performance: Inherits all the electrical advantages of YJV cables.
Disadvantages:
Heavier Weight and Higher Cost: Steel wire armor is heavier and more complex to manufacture than steel tape, resulting in higher cost and weight compared to YJV22.
Difficult to Bend: Extremely rigid, with a very large minimum bending radius (typically ≥20 times the cable's outer diameter).
Contains Halogens: The PVC sheath produces smoke and toxic gases when burned.

YJV32 Armored Power Cable Extrusion Line

The YJV32 low-voltage armored power cable extrusion production line is a complete set of equipment specifically designed for manufacturing insulated cores and protective sheaths of power cables rated at 0.6/1 kV and below. Its core process involves melting solid plastics (such as PVC or XLPE) through heating and pressurization, then continuously and uniformly coating conductors (copper/aluminum wires) or assembled cable cores. After cooling and solidification, a smooth, dense, and uniformly thick insulating layer or protective sheath is formed.

Core Components

The YJV32 armored power cable extrusion production line is a highly coordinated automated system, primarily consisting of the following major components:
Pay-off Unit:
Supports and releases the conductor or cable core, providing stable and controllable tension to prevent thinning or twisting of the conductor.
Preheater:
Heats the conductor before it enters the die head to remove moisture, reduce internal stress, and improve adhesion between the plastic and the conductor.
Extruder:
Screw: Conveys, compacts, melts, and homogenizes the plastic.
Barrel: Heats and cools the plastic.
Drive Motor: Provides power to the screw.
Die Head: Connects the extruder to the die.
Die (Tip and Die): Determines the thickness, concentricity, and shape of the extruded layer.
Cooling Trough:
Rapidly cools and solidifies the high-temperature cable. Typically features segmented temperature control to ensure material stability and avoid internal stress.
Haul-off Unit:
Provides the driving force for the production line. Its speed must be extremely stable, as it is critical for ensuring uniform extrusion thickness.
Spark Tester:
An online quality inspection device that applies high voltage to the insulating layer to detect defects such as pinholes or impurities, triggering alarms and marking the locations.
Take-up Unit:
Winds the finished cable neatly onto a reel, maintaining constant tension and synchronizing with the haul-off speed.
Control System:
Uses a PLC / industrial computer to centrally control all parameters (temperature, speed, tension, etc.), ensuring stable and reproducible production.

YJV32 Armored Power Cable Extrusion Line Datasheet

Model	70	80	90	100	120
Screw Diameter (mm)	φ70	φ80	φ90	φ100	φ120
Screw L/D Ratio	26:1	26:1	26:1	25:1	25:1
Extrusion Amount (kg/hr)	140	200	250	320	450
Outlet Wire (mm)	2-15	3-25	5-35	8-60	10-80
Total Power (KW)	40	55	63	120	165
Production Speed(Max., m/min)	300	200	200	100	80
Take-up Spool	500/800	800/1250	800/1600	1000/2000	2000/2500
Storage Length	240 m	200 m	180 m	0	0

YJV32 Armored Power Cable Extrusion Line Application

The YJV32 low-voltage armored power cable extrusion production line is a complete set of equipment specifically designed for producing YJV32 armored cables & other insulation cores and sheaths of power cables with rated voltage of 0.6/1kV and below. The details are as follows:

Conductor Insulation

Function: Extrudes insulating material onto copper or aluminum conductors to form the primary insulation layer.
Common Materials: Cross-linked polyethylene (XLPE), polyethylene (PE), polyvinyl chloride (PVC), etc.
Requirements: Uniform thickness, high concentricity, absence of impurities, and no microvoids. The insulation extrusion process for high-voltage cables demands the highest technical precision.

Sheathing Extrusion

Function: Extrudes a protective sheath over the assembled cable core.
Purpose: Provides mechanical protection, corrosion resistance, moisture resistance, UV resistance, flame retardancy, etc.
Common Materials: Polyvinyl chloride (PVC), polyethylene (PE), polyolefins, etc.