Application Scope
PVC Wire Coating Machine is widely used to apply a uniform PVC layer onto metal wires, cables, or other substrates, providing excellent corrosion resistance, insulation, and surface protection.
It is suitable for coating iron wire, steel wire, galvanized wire, welded wire mesh, and various metal products.
Common application industries include:
Construction and building materials
Fencing and wire mesh manufacturing
Agriculture and animal enclosures
Industrial safety and protective products
Furniture and household hardware
Automotive and electrical accessory industries
Production Scenarios
PVC wire coating machines are commonly installed in:
Wire and wire mesh manufacturing plants
Fencing production lines
Hardware processing factories
Construction material factories
Export-oriented metal product workshops
In typical production scenarios, the machine operates as part of a continuous production line, working together with wire drawing machines, straightening machines, or mesh welding machines.
It allows high-efficiency, stable, and continuous coating, ensuring consistent thickness, smooth surface finish, and strong adhesion.
Equipment in PVC Wire coating production line
Vertical wire pay-off rack
Tension rack
Forming rack
PVC extruder host
Power distribution control cabinet
Stainless steel cooling water tank
Wheel traction
wire take-up and winding machine
Main technical data of extruder
SJ-Ø55 Single Screw Extruder in PVC Wire Coating Production Line
Screw barrel diameter: φ55mm
Number of screws: 1
Effective screw length: 1820mm
Aspect ratio: 25:1
Screw speed: 1-60r/min
Screw rotation direction: unidirectional rotation
Main motor power: 15kw variable frequency motor
Heating power: 3kw*6 sets
Barrel and screw material: Barrels are made of high-quality 38CrMOAIA alloy steel, which has been tempered, fine-machined, surface nitrided, and the screw surface is sprayed with double alloy. The product has extremely high wear resistance, corrosion resistance, and long service life.
Chromium plating thickness: 0.03-0.10mm
Nitriding layer depth: 0.5-0.7mm
Nitriding hardness: 750-1000HV, reaching national standards (750HV)
Nitriding brittleness: ≤1 level
Surface roughness: Ra0.4
Screw straightness: 0.015mm
Gearbox/Distribution box: 146 type high-strength hardened gearbox is a transmission component with high-precision hardened gear surface and thrust seat designed for plastic screw extruder. The product design adopts the various technical ranges specified in JB/TB8853-2001. Its characteristics are that the gears and shaft parts are made of high-strength alloy steel, and the gears are processed by carburizing, quenching and grinding. The gear accuracy is GBI0095-88, grade 6. The tooth surface hardness is IIRC54-62. An oversized thrust bearing is configured at the front end of the hollow output shaft to withstand the working recoil of the screw. The main standard parts such as bearings and oil seals are all made of domestic high-quality products. The whole machine has the characteristics of small size, high load-bearing capacity, stable transmission, low noise and high efficiency.
Heater: Cast aluminum heater 3KW/fan automatic cooling 180W
Die head: Adjustment-free self-centering plastic die head. (The die core and mouth are equipped separately)
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