Category: Reel Cable
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Product details of Shanghai cable company waste grab bucket cables and power plant grab bucket lifting cables
Shanghai Suoqi Wire & Cable Co., Ltd. is deeply engaged in the specialty cable sector, relying on a professional technical team and strict quality control system. To address the complex working conditions of waste treatment and power plant operations, it has crafted dedicated garbage grab cables and power plant grab lifting cables, providing reliable performance to provide solid support for stable operation of industry equipment.
1. Dedicated garbage grab cables
(1) Robust protective performance
Abrasion and tear-resistant: The outer sheath is made of high-strength specialty rubber or modified polyurethane (PUR) material, with a surface treated with special wear-resistant processes and hardness reaching Shore 75-85A. During frequent grabping and handling by the garbage grab, it effectively resists scraping and cutting from construction debris, metal fragments, and other sharp objects, with tear resistance three times that of ordinary cables, greatly extending cable service life.
Acid and alkali corrosion resistance: To address acidic and alkaline waste liquids and corrosive gases generated during waste treatment, special anti-corrosion additives are added to the cable outer sheath and insulation layer. These can withstand strong acidic and alkaline environments with pH values of 2–13, prevent chemical corrosion, and ensure stable operation of cables in harsh waste treatment environments.
Oil stain resistance and flame retardancy: Waste treatment sites often have a lot of oil stains and fire hazards. The cable outer sheath has excellent oil resistance, able to resist corrosion from various oil stains such as engine oil and hydraulic oil; At the same time, its flame retardant performance meets GB/T 19666 - 2005 Class B flame retardant standard, effectively preventing fire spread in case of open flames and enhancing operational safety.
(2) Stabilizing mechanical properties
High tensile strength and fatigue resistance: Internally implanted multi-layer high-strength Kevlar fibers or galvanized steel wire ropes serve as tensile elements, capable of withstanding 5000 - 20000N of tension. Combined with optimized twisting structures and specially designed buffer layers, this can effectively absorb mechanical stress during grab start and stop operations and lifting processes. It has passed millions of fatigue tests without breaking, ensuring stable cable operation during frequent mechanical movements.
Excellent flexibility: Uses multiple strands of fine oxygen-free copper wire strands combined with flexible EPR insulation material, resulting in a cable bending radius as small as 6–8D (D is the cable outer diameter). Even in the tight installation space of grabs and under frequent bending conditions, it maintains good flexibility, preventing conductor breakage and insulation damage caused by excessive bending.
(3) Reliable Electrical Performance
Low resistance for efficient transmission: The conductor uses high-purity oxygen-free copper, with a copper content of ≥99.99%. At 20°C, the DC resistance is below the requirements of the GB/T 3956-2008 standard. In power transmission of waste treatment equipment, energy loss can be reduced by up to 15%, ensuring stable operation of grab motors and other equipment, thereby minimizing energy waste.
Anti-interference signal transmission: For garbage grabs equipped with automated control systems, cables use tin-plated copper wire braided shielding or aluminum foil copper wire braided composite shielding structures, with a shielding efficiency of ≥95%, effectively resisting on-site electromagnetic interference, ensuring the accuracy of control signals and data transmission, and enabling precise grab operation.
(4) Product Structure
Conductor: Stranded bundle of fine oxygen-free copper wires, complying with IEC 60228 Class 6 conductor standard, ensuring high flexibility and excellent electrical conductivity.
Insulation layer: Flexible ethylene-propylene rubber (EPR) or special polyvinyl chloride (PVC) insulation, with good electrical insulation, weather resistance, and temperature resistance, operating temperature range -40℃ to 90℃.
Shielding layer (optional): tinned copper wire braided shield or aluminum foil-copper wire braided composite shield, effectively isolating electromagnetic interference, suitable for cables with signal transmission functions.
Tensile elements: multi-layer high-strength Kevlar fibers or galvanized steel wires, evenly distributed inside the cable, providing strong tensile support.
Cushioning layer: Made of high-elasticity polyurethane foam material or special rubber, it cushions mechanical stress and protects the internal structure.
Outer sheath: High-strength special rubber or modified polyurethane (PUR), with a smooth and wear-resistant surface, featuring corrosion resistance, oil resistance, flame retardancy, and other properties, commonly in bright orange or black colors.
(5) Applicable Scenarios
Municipal solid waste incineration plant: Used for garbage grab cranes to achieve the grabbing, transporting, and feeding of garbage in the garbage pit, providing power and signal transmission, and adapting to complex environments such as moisture, corrosion, and high temperatures in the garbage pit.
Industrial waste treatment plants: In industrial solid waste treatment equipment, the grab bucket ensures the grab can handle and transport heavy materials such as construction waste and metal scrap, resisting scrapes from sharp objects and chemical corrosion.
Garbage transfer station: Provides power and transmission control signals for garbage compaction and transfer grab equipment, ensuring efficient operation of the transfer station and reducing equipment downtime caused by cable failures.
2. Electric Cable for Power Plant Grab Hoist
(1) High temperature resistance and aging resistance
High-temperature resistance: The insulation layer and outer sheath are made of high-temperature resistant materials such as silicone rubber or fluororubber, allowing for long-term stable operation in environments of 200°C, with instantaneous temperature resistance up to 300°C. During the handling and transportation of fuel in power plant boilers, it effectively resists the invasion of high-temperature coal ash, steam, and other factors, preventing cable insulation from aging and cracking due to high temperatures.
Aging Resistant Design: Adding special anti-aging additives combined with UV-resistant formulas gives the cable excellent weather resistance. In environments such as open-pit coal yards and piers at power plants, it can withstand long-term erosion from sunlight, wind, rain, and dust, with a service life of up to 8-10 years.
(2) High Mechanical Strength and Stability
Ultra-strong tensile load-bearing: Internally equipped with multi-layer high-strength steel wire armor, tensile strength reaching 30,000 - 50,000N, capable of withstanding the enormous weight and tensile forces during the lifting of large grab buckets in power plants. At the same time, a special anti-torsion structural design is adopted to prevent cable twisting and deformation during lifting and lowering, ensuring cable structural integrity.
Vibration and Shock Resistance: To address the intense vibrations and shocks during the operation of power plant equipment, the cable is filled with highly elastic cushioning material and the cabling process is optimized to ensure that each layer is tightly bonded. Simulated vibration tests show that the cable can operate continuously for 1000 hours under conditions of 5-10mm amplitude and 20-50Hz frequency without any abnormalities, ensuring stable transmission of power and signals.
(3) Stable Electrical Transmission
Stable high-voltage transmission: rated voltage up to 6kV - 35kV, using double-layer co-extruded cross-linked polyethylene (XLPE) insulation, uniform insulation thickness, dielectric strength ≥ 30kV/mm, enabling stable power transmission in power plant high-voltage power supply systems and reducing risks of partial discharge and breakdown.
Low-capacitance signal transmission: For grab buckets equipped with intelligent monitoring systems, cables use low-capacitance designs, with signal transmission delay ≤ 0.1μs/m, ensuring fast and accurate transmission of grab operating status data and control commands, supporting intelligent management and efficient operations in power plants.
(4) Product Structure
Conductor: Large-section oxygen-free copper stranded conductor, treated with compression annealing to reduce DC resistance and improve current-carrying capacity.
Insulation layer: double-layer co-extruded cross-linked polyethylene (XLPE) or high-temperature resistant silicone rubber or fluororubber insulation, offering excellent electrical and heat resistance.
Shielding layer (optional): copper strip shielding or copper wire braided shielding, used for electric field homogenization of high-voltage cables and anti-interference of signal cables.
Inner sheath: Special rubber or polyvinyl chloride (PVC) inner sheath, protects the insulation layer and prevents armored steel wire from wearing.
Outer sheath: High-temperature-resistant silicone rubber or fluorine rubber outer sheath, with a smooth surface, featuring high temperature resistance, aging resistance, wear resistance, etc., commonly in red or gray.
(5) Applicable Scenarios
Thermal Power Plant: Used for coal yard grab cranes and coal conveying system grab equipment, to provide power supply and signal transmission during the coal grabbing and conveying process, suitable for high temperature, high dust, and strong electromagnetic interference environments in power plants.
Biomass power plants: In the equipment for grasping and transporting biomass fuels (such as straw and sawdust), ensure stable operation of grabs, and cables can resist corrosive gases and liquids produced by biomass fuel fermentation.
Waste incineration power plant: Provides power to the garbage grab lifting equipment, meeting the strict requirements for cables in the waste incineration power generation process, including high temperature resistance, corrosion resistance, and high mechanical strength.
