H07V-K Electronic Wire Extrusion Line

H07V-K Electronic Wire Extrusion Line

H07V-K is a PVC insulated flexible wire that complies with the European Harmonized Standard. It is a very universal and common wire model, which can be seen as an "enhanced version" of H05V-K, with the main difference being its higher rated voltage level (450/750V). It combines good flexibility, reliable electrical performance, and economy, and is widely used for fixed installation and internal wiring of equipment.

Meaning Analysis

Its code meaning is similar to H05V-K, with the key difference being the voltage level:
H: Represents' coordinated standards'. Compliant with EU CENELEC standards, ensuring universality within the European Economic Area.
07: Represents the rated voltage level. 07 represents a voltage level of 450/750V. Among them:
450V refers to the rated voltage of the wire to ground.
750V refers to the rated voltage between wire conductors.
V: The representative insulation material is polyvinyl chloride.
K: The representative conductor type is fine stranded copper wire conductor, ensuring the flexibility of the wire.

H07V-K Electronic Wire Extrusion Line

The H07V-K electronic wire extrusion production line is a complete set of automated equipment specifically used for manufacturing H07V-K type flexible wires. Its core process is "extrusion," where molten polyvinyl chloride (PVC) plastic is uniformly coated onto a continuously advancing copper conductor through an extruder to form an insulation layer. After undergoing cooling, detection, printing, and other processes, the wire is finally wound into reels that comply with standards. The core task of this production line is to efficiently and stably produce H07V-K electronic wires that meet the requirements of standards such as VDE, IEC, and GB/T, ensuring key indicators like conductor resistance, insulation thickness, outer diameter, and 450/750V withstand voltage performance meet qualifications.

Core Components

A standard H07V-K extrusion production line mainly consists of the following equipment arranged in process order:
Pay-off Device
Function: To carry and release the copper conductor (fine-stranded copper wires).
Type: High-speed production lines all use active pay-off equipped with tension control systems to ensure smooth pay-off and prevent conductor stretching or breaking.
Preheater
Function: To preheat the conductor.
Purpose: To remove moisture, reduce the temperature difference with molten PVC, enhance adhesion, and avoid subsequent shrinkage or bubbling of the insulation layer.
Extruder
Function: To melt, plasticize, and continuously extrude PVC pellets.
Key Components:
Screw/Barrel: A gradual-compression screw designed for the thermal characteristics of PVC, working with the heating and cooling system to achieve precise temperature control.
Die Head and Mold: Precision molds (tip and die) ensure molten PVC forms a ring, uniformly and densely coating the conductor with consistent insulation thickness.
Cooling Trough
Function: To rapidly cool and set the high-temperature wire.
Characteristic: Uses segmented cooling (e.g., warm water section, cold water section) to achieve slow cooling, eliminating internal stress in the insulation layer and preventing brittleness or surface roughness.
Spark Tester
Function: Online 100% quality inspection. The wire passes through a high-voltage electric field; if the insulation layer has defects like pinholes or thin spots, it will be instantly breached, triggering an alarm. This is key equipment for ensuring product insulation integrity.
Diameter Monitoring and Control System
Function: Uses laser or ultrasound to monitor the wire's outer diameter in real-time.
Principle: Compares measured values with set values, automatically feedback-adjusting the haul-off speed or extrusion rate to control the outer diameter within strict tolerances, ensuring stable quality and saving material.
Printing Device
Function: To continuously print permanent markings on the insulation surface. This is a mandatory standard requirement.
Type: Commonly uses hot embossing or inkjet printing.
Haul-off Machine
Function: To provide stable pulling force, synchronously moving the entire line.
Type: Caterpillar haul-off machines are the mainstream choice, capable of steadily gripping the wire and providing damage-free traction.
Take-up Device
Function: To wind the finished wire neatly and tightly onto a reel.
Type: Employs active take-up with PID tension control and an automatic traverser to adapt to high-speed production and ensure neat reeling.
Control System
Function: The "brain" of the production line. Integrates PLC and touch screen to centrally control all parameters (temperature, speed, tension, etc.), enabling automated production, data recording, and fault diagnosis.

H07V-K 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

H07V-K Electronic Wire Extrusion Line Application

The H07V-K electronic wire extrusion production line is a specialized equipment system with mature technology and strict quality control. It converts raw materials into safe wires that meet high standards through precise mechanical, electrical, and automation technologies, and is an important basic industrial equipment that supports power transmission, equipment manufacturing, and construction projects. It is mainly used for:
Main products: PVC insulated flexible wires specifically designed for the production of H07V-K (450/750V) series. By changing the mold and adjusting the process, other specifications of single core wires such as H05V-K can also be produced.
Target industry: Serving wire and cable manufacturing enterprises. The H07V-K wires produced are widely used in:
Fixed installation of building electrical systems: Such as power lines (lighting, socket circuits) in pipelines and cable trays of residential and commercial buildings.
Industrial equipment and machinery: power wiring and control circuits inside factory machinery and control cabinets.
Distribution system: Connecting wires in small and medium current distribution boxes.
Household appliances and public facilities: Internal wiring of high-power appliances, lighting systems, etc.
Capacity and specifications: The production line can adapt to different output requirements according to configuration, producing various specifications of H07V-K wires to meet the diverse needs of the market.