The 12 ton fully automatic unwinding machine with a trolley is a specialized auxiliary machine for heavy-duty cold bending and forming production lines. It is designed for large tonnage metal coil materials and integrates functions such as automatic feeding, hydraulic tensioning, constant tension unwinding, and synchronous speed regulation. It has strong load-bearing capacity and high degree of automation. It is mainly used for heavy-duty production lines such as thick plate C/Z steel, floor support plates, highway guardrails, and large sandwich panels, and is widely used in large-scale steel structure and metal plate deep processing enterprises.

Main technical parameters

• Equipment name: 12 ton fully automatic unwinding machine (with feeding trolley)
• Rated load capacity: 12 tons
• Suitable coil materials: color coated coil, galvanized coil, zinc aluminum magnesium coil, cold-rolled coil, stainless steel coil
• Board thickness: 0.6-3.2mm
• Roll width: ≤ 1250mm (supports customized widening specifications)
• Inner diameter of coil material: standard diameter of 508mm, optional diameter of 610mm
• Maximum outer diameter of coil material: φ 1600mm
• Unwinding speed: 0-32mm/min, variable frequency stepless speed regulation, can be synchronized with the host machine
• Main driving power: 7.5KW
• Hydraulic station power: 7.5KW, system working pressure 16-22MPa
• Tightening method: Multi blade hydraulic synchronous tightening, automatic centering
• Loading trolley: electric walking+hydraulic lifting, rated load of 12 tons, travel distance of 3500mm, lifting height of 650mm
• Braking method: dual braking of pneumatic brake and electromagnetic brake
• Control mode: manual/automatic dual mode, level sensing automatic start stop, speed regulation
• Dimensions: 5800 × 2000 × 1900mm
• Total weight of equipment: approximately 3.5T
• Working voltage: 380V 50Hz

Equipment structure composition

• Heavy duty frame: Thickened steel is welded as a whole and subjected to aging stress relief treatment, resulting in strong overall rigidity and no shaking or deformation during heavy-duty operation.
• Hydraulic tensioning spindle: Multiple sets of slider blade structure, hydraulic drive synchronous tensioning, high centering accuracy, coil operation without deviation, effectively avoiding tail material collapse.
• Transmission drive unit: Equipped with a variable frequency motor and a high-power reducer, the transmission torque is high and the operation is smooth. It can be precisely synchronized with the back-end forming host to prevent the sheet from stretching and wrinkling.
• Integrated feeding trolley: With an independent hydraulic and walking system, it can complete the transportation, lifting, and precise alignment of coil materials without the need for additional lifting equipment, achieving automated feeding.
• Hydraulic feeding arm: compresses the outer ring of the coil to prevent loose or loose material during equipment start stop and high-speed operation, ensuring regular feeding.
• Material level sensing system: high-precision contact sensor, real-time monitoring of material roll remaining, automatic control of equipment start stop and speed, ensuring production continuity.
• Electronic control system: independent control cabinet, simple operation interface, with functions such as fault alarm, parameter memory, overload protection, etc.
• Dual braking mechanism: a combination of pneumatic brake and electromagnetic brake, which can quickly lock the coil in emergency situations, preventing rolling and safety accidents.

Core advantages

• Heavy duty fully automatic operation: With a large fixed load of 12 tons and a dedicated loading trolley, the entire process of coil transportation, loading, and tensioning is automatically completed by a single person, greatly reducing labor costs and high-altitude lifting risks.
• Stable feeding and excellent forming: Hydraulic centering structure combined with variable frequency synchronization technology ensures uniform tension of the coil, straight conveying, and does not scratch the anti-corrosion layer on the surface of the sheet, ensuring the quality of subsequent profile forming.
• Durable and adaptable for continuous production: All parts of the entire machine have undergone strengthening treatment, and the load-bearing and transmission components have sufficient load-bearing capacity to meet 24-hour uninterrupted production, with low equipment failure rate and long service life.
• Multiple safety protections: The equipment is fully equipped with pressure material anti roll, dual braking, limit protection, emergency stop, and other protective features, ensuring safe and reliable operation.
• Strong universality: compatible with mainstream metal coils with inner diameter, width, and thickness in the market, and can be matched with various heavy-duty cold bending forming and tile pressing production lines.
• Simple operation and maintenance: Hydraulic and electrical components are standard universal parts, easy to purchase and replace, only requiring regular lubrication and inspection of hydraulic oil for daily use, with low maintenance costs.

Performance characteristics

• Free switching between manual and automatic modes, balancing equipment debugging and mass production needs.
• Variable frequency speed regulation design, low operating noise, reasonable energy consumption, and can flexibly adjust the speed according to the specifications of the board.
• The hydraulic tightening force is adjustable, suitable for different materials and thicknesses of coils, with a wide range of applications.
• The overall layout is reasonable, the feeding process is simple, and the operators are quick to get started.

Application scope

• Heavy production line supporting equipment: thick C/Z-shaped steel purlin machine, floor slab production line, high-speed guardrail equipment, large insulation sandwich panel production line, etc.
• Production enterprises: large-scale steel structure processing plants, photovoltaic bracket profile factories, metal sheet deep processing enterprises, and large-scale color steel product factories.
• Applicable materials: large tonnage color steel coils, galvanized coils, zinc aluminum magnesium coils, cold-rolled steel coils and other types of metal coils.