Automatic Copper Pipe Drawing Machine
(Total 1 Products)-
Min. Order:1Automatic Copper Tube Drawing Machine for HVAC Pipes: An efficient expert in processing copper tubes for HVACIn HVAC systems, the quality of Copper tubes directly affects the transmission efficiency of heat and cold media and the stability of the...
An Automatic Copper Pipe Drawing Machine is a specialized industrial device designed to reduce the diameter, adjust the wall thickness, and improve the surface finish of copper pipes via a continuous, automated drawing process. It transforms raw copper pipes (or coils) into high-precision, uniform products—critical for industries like plumbing, HVAC, electronics, and automotive, where copper’s conductivity and corrosion resistance are essential.
Core Working Principle & Key Components
The machine executes automated drawing through a sequential, controlled process, supported by key systems:
Uncoiling/Feeding System: For copper pipe coils (common input diameter: 10mm–50mm), a motorized uncoiler feeds the pipe into the machine at a steady speed (1–8m/minute). For straight raw pipes, a hydraulic pusher ensures consistent material flow, avoiding slippage.
Drawing Die Assembly: The core component—interchangeable tungsten carbide dies (with precision inner holes) that reduce the pipe’s diameter. Multiple die stations (2–6) are often used for gradual reduction (each station cuts diameter by 5–15%), preventing copper cracking (copper is ductile but prone to damage from sudden deformation).
Annealing Unit (Optional): After each drawing step, some models heat the copper pipe (300–500°C) to soften it—relieving internal stress from drawing, which maintains pipe flexibility (critical for HVAC tubes that need bending) and prevents brittleness.
Cooling & Lubrication System: Sprays a water-based lubricant during drawing to reduce friction between the die and copper, preventing overheating and die wear. A post-drawing cooling system (air or water) stabilizes the pipe’s dimensions.
Sizing & Cutting: A laser diameter sensor monitors the pipe’s final size (tolerance: ±0.05mm); once the preset length is reached, an automated cutter (circular saw or shear) trims the pipe, with a digital encoder ensuring length accuracy (±0.3mm).
Key Advantages
Precision Control: Automated die alignment and laser sizing ensure uniform diameter and wall thickness across batches—critical for plumbing pipes (to avoid leaky joints) and electronic heat sinks (for consistent heat transfer).
High Efficiency: Continuous drawing processes 500–2,000 meters of copper pipe per hour, 3–5x faster than manual drawing. The automated feeding and cutting eliminate downtime from manual material handling.
Material Quality Enhancement: Reduces surface defects (scratches, unevenness) via lubrication and polished dies; optional annealing improves copper’s mechanical properties, extending the pipe’s service life.
Versatility: Interchangeable dies adapt to different output diameters (2mm–30mm) and wall thicknesses (0.5mm–5mm), fitting diverse applications—from thin electronic wires to thick plumbing pipes.
Typical Applications
Plumbing & Sanitation: Produces thin-walled copper pipes (10mm–20mm diameter) for residential water supply lines—their smooth inner surface reduces water pressure loss and prevents scale buildup.
HVAC & Refrigeration: Manufactures medium-diameter copper pipes (8mm–15mm) for refrigerant lines—annealed versions maintain flexibility for bending into 3D shapes (e.g., AC evaporator coils).
Electronics: Creates ultra-thin copper pipes (2mm–5mm) for heat sinks in computers or smartphones—precision diameter ensures tight fits with electronic components, optimizing heat dissipation.
Automotive: Produces copper pipes (6mm–12mm) for brake lines or fuel injection systems—high strength from controlled drawing ensures resistance to vibration and pressure.
Operational & Safety Tips
Die Maintenance: Inspect dies for wear after 1,000+ meters of drawing—replace worn dies to avoid uneven diameter. Polish die inner holes monthly to maintain surface smoothness.
Lubricant Management: Check lubricant levels daily; use copper-compatible lubricants (avoid acidic formulas that cause corrosion). Replace lubricant every 200 hours of operation.
Safety Measures: Install safety guards around the drawing and cutting zones; use emergency stops to halt operation if the pipe jams. Operators must wear heat-resistant gloves (for annealing units) and safety glasses.
Calibration: Calibrate the laser diameter sensor weekly; adjust drawing speed based on copper pipe thickness (slower speed for thicker pipes to prevent deformation).
Maintenance Guidelines
Clean the cooling system’s filters weekly to remove copper dust and lubricant residue.
Lubricate the feeding rollers and cutter blades monthly with industrial grease.
Inspect the annealing unit’s heating elements quarterly for damage; replace faulty parts to ensure consistent temperature.
In summary, the automatic copper pipe drawing machine is a cornerstone of copper pipe manufacturing, merging precision, efficiency, and quality enhancement. It enables the production of high-performance copper pipes that meet strict industry standards, making it indispensable for sectors relying on copper’s unique properties.
Automatic Copper Pipe Drawing Machine
Automatic copper pipe drawing machines are specialized industrial systems designed to transform raw copper billets or pre - formed tubes into seamless, high - precision pipes with exacting dimensions and surface finishes. This automated process is critical for producing copper tubing used in HVAC systems, refrigeration, plumbing, and electrical applications.