Uncoiler

2. Main Functions

• Securely supports and expands steel coils

• Controls unwinding speed and tension to ensure stable strip feeding

• Integrates with coil car and flattener for automated loading

• Optional mandrel expansion system for automatic coil clamping and releasing

• Works in coordination with an accumulator to balance strip flow between processes

3. Structural Components

• Mandrel: The core coil-supporting component; available in mechanical or hydraulic expansion types to match various coil inner diameters

• Drive System: Passive or motorized unwinding, with electric motor and inverter for adjustable speed control (if driven)

• Base Frame: Heavy-duty welded structure designed to carry large coil loads and maintain operational stability

• Auxiliary Devices: May include hold-down arm, damping device, hydraulic expansion cylinder, coil guide, and anti-loosening unit

• Control System: PLC-integrated control with options for line synchronization, local operation, tension regulation, and fault monitoring

4. Technical Specifications (Example)

• Max Coil Weight: 10–20 tons (customizable)

• Coil Inner Diameter: φ508–610 mm (with expansion system)

• Applicable Strip Width: 300–1500 mm

• Unwinding Mode: Passive / Motorized (with drive motor)

• Control Options: Local push-button / PLC integrated / Remote control

• Brake System: Pneumatic brake / Hydraulic damping / Mechanical drag unit

5. Key Features

• Wide Adaptability: Suitable for various materials including carbon steel, stainless steel, and galvanized strip

• Rigid Structure: Reinforced mandrel and robust frame for heavy-duty coil handling and fatigue resistance

• Smooth Unwinding: Adjustable tension and guiding devices prevent coil deformation, misalignment, or backlash

• Easy Maintenance: Centralized layout for mechanical and hydraulic components enables quick inspection and servicing

• Modular Upgrade Ready: Expandable with hydraulic mandrel, pressure arm, tension controller, etc., to support automation needs

6. Application Scope

This uncoiler is widely used in the coil-feeding section of ERW pipe production lines and is also applicable in slitting, cold roll forming, steel strip leveling, and stamping lines. It is designed to work seamlessly with coil cars, flatteners, accumulators, and shearing systems to form a complete coil processing solution.

Customized solutions are available based on your specific coil parameters, drive requirements, and control system preferences. Contact us for 3D drawings, technical specifications, or electrical system integration services.