A 70/35 Insulation Extrusion Line is a highly efficient production system designed for manufacturing insulated wire and cable products with consistent quality and stable output. It is widely used in the electrical and cable industry for extruding insulating materials such as PVC, PE, XLPE, LSZH, and other thermoplastic compounds onto conductors. With a 70 mm main extruder and a 35 mm auxiliary extruder, this line offers excellent processing flexibility, strong plasticizing performance, and reliable operation for medium to high-volume production requirements.The main extruder is responsible for melting and conveying the insulation material with precision. Its screw and barrel are engineered for optimal mixing, uniform temperature control, and smooth extrusion flow. The 35 mm auxiliary extruder can be used for various supporting functions, such as color stripe extrusion, co-extrusion, or small-size material application, depending on production needs. This combination allows the line to handle multiple product specifications while improving efficiency and reducing production downtime.The insulation extrusion line is typically equipped with a pay-off system, preheating unit, extruder, extrusion die head, cooling trough, diameter control system, spark tester, traction unit, capstan, and take-up machine. Each component is designed to work in coordination, ensuring accurate wire feeding, stable insulation thickness, and a clean finished surface. Advanced control systems help operators monitor temperature, speed, pressure, and line synchronization in real time, making the production process easier to manage and more consistent.One of the main advantages of a 70/35 insulation extrusion line is its high degree of automation. Modern control panels and PLC systems allow precise adjustment of production parameters, improving product uniformity and reducing material waste. The line can maintain stable extrusion even during long production runs, which is especially important for factories that require reliable output and strict quality standards. The cooling system ensures that the insulated cable is rapidly and evenly cooled, preventing deformation and maintaining dimensional accuracy.This type of extrusion line is suitable for producing building wire, control cable, communication wire, appliance wire, and other insulated conductors. It is widely appreciated for its durable structure, energy efficiency, easy maintenance, and long service life. The equipment can be customized to meet different cable sizes, material types, and production speeds, making it a versatile solution for many manufacturing environments.In summary, a 70/35 Insulation Extrusion Line combines strong performance, precision control, and operational flexibility. It is an ideal choice for manufacturers seeking to improve insulation quality, increase productivity, and meet diverse cable production demands with dependable results.