Heavy Gauge Metal Slitting Line And Tube Mill Supporting Production Line

The Heavy Gauge Slitting Line Tube Mill Line is a high-performance, integrated production system designed for processing heavy-gauge metal coils (e.g., stainless steel, carbon steel) into precise-width strips—primarily serving as a core pre-processing line for tube mill production. It combines robust mechanical structure, intelligent control, and automated workflow to handle thick, high-strength metal materials (typically ≥3mm thickness, up to 20mm+ for heavy-duty models), ensuring consistent strip width, flatness, and edge quality.

This line not only meets the raw material processing needs of tube mills (providing customized-width strips for seamless/ERW tube manufacturing) but also caters to other heavy-gauge metal processing scenarios, such as structural steel production, automotive frame components, and industrial pipe fittings. Its stable operation and high precision make it an essential equipment for medium-to-large metal processing plants and tube manufacturing enterprises.

The Heavy Gauge Slitting Line follows a systematic, automated workflow to convert heavy-gauge metal coils into usable strips, with each step optimized for precision and efficiency:

• Coil Handling: Heavy-gauge metal coils (e.g., stainless steel coils) are lifted and positioned onto the line’s decoiler via a hydraulic coil car—equipped with weight-bearing capacity matching the coil’s weight (up to 50 tons for heavy-duty models) to ensure safe, stable loading.
• Feeding Initiation: The feeding device (equipped with anti-slip rollers and alignment guides) pushes the coil’s leading edge into the decoiler, ensuring the coil is centered and avoids lateral (offset) during uncoiling.

• Uncoiling: The decoiler (hydraulic-driven for heavy coils) unrolls the metal coil at a speed synchronized with the subsequent slitting process—preventing coil loosening or tension-induced deformation (critical for heavy-gauge materials prone to bending).
• Precision Positioning: A laser positioning system or mechanical guide rail adjusts the coil’s horizontal position, ensuring it aligns with the slitting blades’ centerline—eliminating width (deviation) in the final strips.
• Alignment Calibration: For uneven coil edges (common in heavy-gauge materials), an edge-trimming auxiliary device trims the coil’s side edges first, further improving alignment accuracy before slitting.

• Blade Setup: High-hardness tungsten carbide or Cr12MOV slitting blades are installed according to the desired strip width—blades are spaced and fixed via a precision adjustment mechanism (tolerance ≤±0.1mm for width setting).
• Slitting Operation: The heavy-gauge metal sheet passes through the slitting unit, where multiple blades cut the sheet along its length simultaneously. The unit is equipped with a hydraulic pressing system to clamp the sheet during cutting—preventing vibration (a major issue for thick materials) and ensuring clean, burr-free edges.
• Speed Control: An inverter adjusts the slitting speed based on material thickness (slower for thicker materials, faster for thinner ones) to balance efficiency and cutting quality.

• Conveying: After slitting, the multiple strips are separated via guide plates and conveyed to the collection unit through a series of rollers (with anti-scratch coatings to protect the metal surface).
• Stacking: The collection unit (either a hydraulic stacking table or a coil rewinder, depending on post-use needs) arranges the strips into neat stacks—stack height is adjustable (up to 1.5m for heavy strips) and controlled via a photoelectric sensor to avoid overloading.
• Flatness Correction: For strips with minor warping (caused by slitting tension), an optional roller-leveling device is integrated before stacking to restore flatness—critical for subsequent tube mill processing.

• Packaging: Stacks of strips are wrapped with moisture-proof plastic film (or steel plates for extra protection during transport) to prevent rust, scratches, or deformation—packaging is customized based on strip size and shipping method (sea/land transport).
• Labeling: Each package is labeled with key information: material type (e.g., 304 stainless steel), strip thickness/width/length, quantity, production batch number, and destination—facilitating inventory management and traceability for the tube mill line or downstream use.

This Heavy Gauge Slitting Line is uniquely optimized to match the needs of tube mill production, with 4 key advantages:

1. Heavy-Gauge Adaptability: Reinforced frame, high-torque motors, and hydraulic clamping systems enable stable processing of thick metal coils (up to 20mm+), meeting the raw material requirements of large-diameter, high-pressure tube mills.
2. Precision Guarantee: Laser positioning, precision blades, and flatness correction ensure strip width tolerance ≤±0.1mm and edge burr ≤0.05mm—avoiding tube forming defects (e.g., uneven welding seams) in the subsequent tube mill line.
3. Automated Integration: The line can be connected to tube mill lines via a conveyor system, realizing seamless transfer of strips from slitting to tube forming—reducing manual handling and improving overall production efficiency.
4. Durability & Low Maintenance: Key components (e.g., slitting blades, decoiler shafts) use wear-resistant materials; the control system (PLC + touch screen) supports fault self-diagnosis—minimizing downtime and lowering long-term maintenance costs.

Beyond supporting tube mill lines, the Heavy Gauge Slitting Line also serves other heavy-gauge metal processing fields:

• Tube & Pipe Manufacturing: Provides customized-width strips for ERW (electric resistance welded) tubes, seamless steel tubes, and stainless steel pipes (used in oil pipelines, construction scaffolding, and industrial fluid transport).
• Structural Steel Processing: Slits heavy-gauge carbon steel coils into strips for manufacturing steel beams, columns, and automotive frame components.
• Specialty Metal Applications: Processes high-strength alloy steel coils into strips for aerospace parts, marine equipment, and pressure vessels—where precision and material integrity are critical.