Nonferrous metal smelting — including aluminum electrolysis, copper pyrometallurgy, lead-zinc roasting, and rare earth solvent extraction — operates in environments characterized by high temperatures, strong corrosives, and high electrical currents. These conditions impose strict requirements on lifting equipment in terms of temperature resistance, anti-corrosion performance, and electrical insulation. This article provides differentiated crane solutions tailored to each of the four smelting processes.

Aluminum Electrolysis Cell Anode Replacement Cranes

In aluminum electrolysis plants, the primary lifting requirements center on anode replacement (each anode group weighs 15–25t, with 20–40 anode groups per electrolytic cell and a replacement interval of 28–32 days) and electrolytic cell overhaul (lifting the cell body out for repair). Workshop temperatures range from 50–80°C, magnetic field strength from 10–50mT, and corrosive gas (HF) concentrations are high.

Recommended model: QD-type double-girder bridge crane, 50t capacity with a span of 22–28m, heat-insulated configuration (F-class motor insulation, double-glazed operator cabin, cables rated for 200°C). Anode replacement uses a dedicated anode lifting spreader with load detachment protection and current isolation; overhaul operations use a C-hook spreader designed for electrolytic cells. Lifting speed: ≤2m/min under heavy load, 12m/min at no-load.

Price reference: QD double-girder 50t/25m: approximately $52,000–$82,000 per unit; heat-insulated version adds roughly 20%. Kelude's aluminum electrolysis solution comes standard with magnetic field interference protection and HF-resistant coating.

Copper Converter and Anode Furnace Relining Cranes

Copper pyrometallurgy relies on converters (weighing 100–200t, requiring periodic refractory brick replacement) and anode furnaces (50–100t). Converter relining involves lifting the furnace body off its base, laying refractory brick, and reinstalling. Individual refractory bricks weigh 5–20kg, with 500–3,000 bricks consumed per furnace.

Recommended model: QD-type double-girder bridge crane, 100t capacity with a span of 20–26m, equipped with forced cooling fans (independent air-duct cooling for the motor). Converter relining uses a masonry platform (3t load capacity, height-adjustable), while the crane handles furnace body lifting and refractory brick pallet transport.

Price reference: QD double-girder 100t/24m: approximately $89,000–$148,000 per unit; forced cooling adds about 15%. Kelude's copper smelting solution includes high-temperature resistant wire rope (galvanized and oil-impregnated, rated for 300°C).

Lead-Zinc Roasting Furnace Maintenance and Material Handling

Lead-zinc roasting furnaces (fluidized-bed furnaces / rotary kilns) have furnace bodies weighing ≤30t with refractory linings. The process generates SO₂ and lead dust, both highly corrosive and toxic. The workshop requires a sealed negative-pressure design, and cranes must be acid-resistant and corrosion-proof.

Recommended model: MH-type gantry crane, 10–30t capacity with a span of 12–18m, coated with an acid-resistant system (epoxy zinc-rich primer plus chlorinated rubber topcoat, total thickness ≥200μm). The electric hoist has an IP55 sealing degree, and the control box features positive-pressure explosion-proof design. Rotary kiln maintenance uses a dedicated kiln support cradle.

Price reference: MH gantry crane 20t/16m: approximately $22,000–$37,000 per unit; acid-resistant coating adds about 10%. Kelude's lead-zinc solution includes an acid-resistant sealing cover with negative-pressure interlock shutdown.

Rare Earth Extraction Tank and Calcination Kiln Handling

Rare earth solvent extraction involves handling extraction tanks (weighing ≤10t) and calcination kilns (5–15t). The extraction solvents are typically organic compounds (P507/TBP, both flammable), requiring an explosion-proof workshop design. Given the high value of rare earth products (praseodymium-neodymium oxide ≥$74,000/t), spillage prevention during lifting is critical.

Recommended model: KBK flexible modular crane, 5t capacity with an explosion-proof electric hoist (ExdⅡBT4), covering the extraction tank installation and maintenance areas. The calcination kiln area uses a small jib crane (2t, stainless steel material for corrosion resistance). The finished goods packaging area is equipped with an electric stacker.

Price reference: KBK explosion-proof 5t: approximately $12,000–$22,000 per set; 2t jib crane: approximately $1,500–$3,000 per unit. Kelude's rare earth solution includes a full range of explosion-proof electrical equipment plus spill-proof sealed lifting spreaders.

Nonferrous Smelting Crane Configuration Comparison

Kelude Heavy Industry: Overhead & Gantry Crane Solutions

Kelude Heavy Industry is a professional manufacturer of overhead cranes, gantry cranes, and electric hoists. We offer a comprehensive range of material handling equipment designed for durability, efficiency, and safety in demanding industrial environments. Our portfolio includes single-girder and double-girder overhead cranes, gantry cranes, and various hoisting mechanisms, all engineered to meet international standards.

Customized Crane Design and Manufacturing

We specialize in providing tailored crane solutions to meet specific application requirements. Our engineering team works closely with clients to design cranes that optimize your workflow and operational efficiency. From determining the appropriate duty classification to selecting the right configuration, we ensure every crane is built for reliable, long-term performance.

Our design process adheres to ISO 4301 for crane classification, ensuring that each unit is rated for its intended service class. We also comply with ISO 12480 for safe use and ISO 4306 for terminology and specifications, guaranteeing that our equipment meets rigorous international benchmarks for quality and safety.

Key Features and Benefits of Our Cranes

Our cranes are constructed with high-quality materials and components, ensuring exceptional strength and longevity. Key features include:

• High Lifting Capacity: Available in various capacities to handle loads from a few tons to several hundred tons.
• Reliable Performance: Designed for continuous operation in harsh conditions, minimizing downtime.
• Enhanced Safety: Equipped with multiple safety devices, including overload protection, limit switches, and emergency stops.
• Easy Maintenance: Modular design simplifies inspection and servicing, reducing overall maintenance costs.
• Energy Efficient: Utilizes advanced motor and control technology to reduce energy consumption.

Applications Across Diverse Industries

Kelude cranes are widely used across various sectors, including manufacturing, logistics, automotive, and heavy industry. They are ideal for tasks such as material handling in workshops, warehouse loading and unloading, and assembly line operations. Our solutions are designed to improve productivity and safety in any material handling scenario.

Global Service and Support

We provide comprehensive after-sales support, including installation guidance, commissioning, and maintenance services. Our global network ensures that you receive timely assistance and spare parts, maximizing the lifespan and efficiency of your equipment. We are committed to building long-term partnerships with our clients through reliable service and support.

Frequently Asked Questions (FAQ)

Q: What is the typical lead time for a custom crane?
A: The lead time varies depending on the complexity and specifications of the crane. Generally, it ranges from 30 to 90 days after design approval.

Q: Do you provide installation services?
A: Yes, we offer professional installation and commissioning services, either by our own team or through our certified local partners.

Q: What standards do your cranes comply with?
A: Our cranes are designed and manufactured in accordance with international standards such as ISO 4301, ISO 12480, and IEC 60204-32 for electrical equipment.

Q: Can you provide spare parts for existing cranes?
A: Absolutely. We supply a full range of spare parts for our own cranes and can also source parts for other major brands.

Q: What is the warranty period for your cranes?
A: We offer a standard warranty period of 12 months from the date of commissioning, covering defects in materials and workmanship.

Q: Do you offer training for operators?
A: Yes, we provide comprehensive training programs for operators and maintenance personnel to ensure safe and efficient crane operation.

Q: How do I choose the right crane for my application?
A: Our engineering team can assist you in selecting the appropriate crane based on your load requirements, duty cycle, and facility layout. Contact us for a detailed consultation.

Q: What are the payment terms?
A: Our standard payment terms are 30% advance payment (T/T) and the balance before shipment. Other terms may be negotiable based on the project value.

Q: How is the crane shipped?
A: Cranes are typically shipped in partially disassembled modules to facilitate cost-effective and safe transportation. Detailed assembly drawings and instructions are provided.

Q: Can you customize the crane's span and lifting height?
A: Yes, the span and lifting height are fully customizable to suit your specific facility dimensions and operational needs.

Q: What safety features are included as standard?
A: Standard safety features include overload protection, limit switches for hoist and trolley travel, emergency stop buttons, and audible/visual alarms.

Q: Do you provide remote control options?
A: Yes, our cranes can be equipped with wireless remote controls, pendant stations, or cabin controls, depending on your preference.

Q: What is the maximum lifting capacity available?
A: Our standard range covers capacities up to 100 tons for overhead cranes and up to 300 tons for gantry cranes. Custom solutions for higher capacities are also available upon request.

Q: How often should the crane be inspected?
A: Regular inspections are crucial for safety. We recommend a thorough inspection at least once a year, with more frequent checks for heavily used cranes.

Q: Do you offer maintenance contracts?
A: Yes, we offer flexible maintenance contracts tailored to your operational needs, ensuring optimal performance and minimizing unexpected downtime.

Q: What is the power supply requirement?
A: Our cranes are available for various power supplies, including 220V/380V/415V/480V, 50Hz or 60Hz, and can be customized to match your local electrical standards.

Q: Can the crane be used outdoors?
A: Yes, we offer weatherproof and corrosion-resistant options specifically designed for outdoor applications, such as gantry cranes for storage yards.

Q: What is the noise level during operation?
A: Our cranes are designed for low-noise operation. The specific noise level depends on the configuration and components used, but we strive to minimize acoustic impact.

Q: Do you provide documentation and certifications?
A: Yes, we provide comprehensive documentation, including CE certification, technical drawings, and operation manuals in English.

Q: How can I get a quote for a crane?
A: Please contact us with your specific requirements, including capacity, span, lifting height, and application details. Our sales team will provide a detailed quotation promptly.

Q: What is the lifespan of a Kelude crane?
A: With proper maintenance and operation, our cranes are designed to have a lifespan of 20-30 years, depending on the duty cycle and environment.

Q: Do you offer explosion-proof cranes?
A: Yes, we manufacture explosion-proof cranes and hoists for use in hazardous environments, complying with relevant safety regulations.

Q: Can the crane be integrated with existing automation systems?
A: Yes, our cranes can be equipped with advanced control interfaces, including PLCs and remote monitoring systems, for seamless integration into automated production lines.

Q: What is the minimum order quantity?
A: There is no strict minimum order quantity. We accommodate both single-unit orders and large-scale projects.

Q: How do you ensure the quality of your products?
A: We implement a strict quality management system throughout the manufacturing process, from raw material inspection to final testing and commissioning.

Q: Do you provide customized painting and color options?
A: Yes, we offer a variety of standard colors and can also match your corporate branding or specific safety color requirements.

Q: What are the dimensions and weight of the crane?
A: The dimensions and weight vary significantly based on the crane type, capacity, and span. We provide detailed technical drawings and specifications with your quotation.

Q: Can you help with the installation foundation design?
A: Yes, we provide guidance and recommendations for the crane runway and foundation design to ensure proper installation and operation.

Q: What is the maximum wind speed for outdoor crane operation?
A: For outdoor cranes, the maximum allowable wind speed for operation is typically 20 m/s (72 km/h). We recommend stopping operation and securing the crane at higher wind speeds.

Q: Do you offer anti-collision systems for multiple cranes?
A: Yes, we can equip cranes with anti-collision systems using radar or laser sensors to ensure safe operation when multiple cranes share the same runway.

Q: What is the duty cycle of your cranes?
A: Our cranes are available in various duty classifications, from light-duty (e.g., A5) to heavy-duty (e.g., A8), to match your specific operational intensity.

Q: Can the hoist speed be adjusted?
A: Yes, we offer variable-frequency drives (VFD) for smooth and adjustable hoist and trolley speeds, improving load positioning and reducing mechanical stress.

Q: Do you provide operator cabins?
A: Yes, we offer ergonomically designed operator cabins with excellent visibility, climate control, and comfortable controls for enhanced operator comfort and safety.

Q: What is the maximum ambient temperature for operation?
A: Our standard cranes are designed for operation in ambient temperatures ranging from -20°C to +40°C. Specialized versions are available for extreme cold or hot environments.

Q: How do you handle spare parts availability?
A: We maintain a comprehensive inventory of spare parts for all our crane models, ensuring quick delivery and minimal downtime for our customers.

Q: Can you provide a crane with a special paint finish?
A: Yes, we can apply specialized paint systems, including anti-corrosion and high-temperature resistant coatings, to meet specific environmental requirements.

Q: What is the procedure for after-sales service requests?
A: You can contact our 24/7 service hotline or email us. We will dispatch a service engineer or provide remote support to resolve the issue promptly.

Q: Do you offer training for maintenance personnel?
A: Yes, we provide detailed training programs for your maintenance team, covering routine inspections, troubleshooting, and preventive maintenance procedures.

Q: Can the crane be designed for a cleanroom environment?
A: Yes, we can design cranes with special seals, materials, and lubrication systems to meet cleanroom standards, minimizing particle generation.

Q: What are the available control voltage options?
A: Control voltages are typically 24V DC or 110V AC, ensuring operator safety. We can adapt to your specific control system requirements.

Q: Do you provide load testing services?
A: Yes, we conduct load testing of all cranes before delivery to ensure they meet the specified capacity and safety standards.

Q: Can you provide a crane with a longer span?
A: Yes, we can manufacture cranes with spans exceeding 30 meters, subject to engineering feasibility and transportation constraints.

Q: What is the maximum lifting height available?
A: The maximum lifting height depends on the crane type and configuration. For overhead cranes, heights up to 30 meters are common, while gantry cranes can be designed for higher lifts.

Q: Do you offer a remote monitoring system?
A: Yes, we offer optional IoT-enabled remote monitoring systems that provide real-time data on crane performance, usage, and maintenance alerts.

Q: What is the lead time for spare parts?
A: Standard spare parts are typically shipped within 24-48 hours. Custom or specialized parts may take longer, depending on availability.

Q: Can the crane be used in a corrosive environment?
A: Yes, we offer cranes with hot-dip galvanized or stainless steel components and specialized protective coatings for use in highly corrosive environments.

Q: Do you provide a crane with a double hoist?
A: Yes, we can design cranes with two hoists, either of the same capacity or with a main and auxiliary hoist, for increased flexibility in handling different loads.

Q: What is the maximum travel speed of the crane?
A: The travel speed is customizable. Typical speeds range from 20 to 40 m/min for the crane and 30 to 60 m/min for the trolley, depending on the application.

Q: Can you provide a crane with a special voltage and frequency?
A: Yes, we can manufacture cranes for any voltage and frequency, including 230V, 400V, 460V, 575V, 50Hz, 60Hz, or other specifications.

Q: Do you offer a crane with a rotating hook?
A: Yes, we can equip cranes with a motorized rotating hook or a hook with a swivel to facilitate precise load orientation.

Q: What is the warranty on the electric motor?
A: The electric motors are covered under the same standard 12-month warranty, with extended warranty options available for critical components.

Q: Can you provide a crane with a special control system?
A: Yes, we can integrate various control systems, including PLC-based controls, frequency inverters, and remote control systems, to meet your specific needs.

Q: How do you ensure the safety of the crane during operation?
A: We incorporate multiple safety features, including overload protection, limit switches, emergency stops, and anti-drop devices, all designed to meet international safety standards.

Q: Do you provide a crane with a special paint color?
A: Yes, we can match any RAL color code for the crane's paint finish to meet your company branding or site requirements.

Q: What is the maximum allowable deflection of the crane beam?
A: The maximum deflection is typically limited to 1/800 of the span for overhead cranes, ensuring smooth operation and accurate load positioning.

Q: Can you provide a crane with a special hook height?
A: Yes, the hook height can be customized to meet your specific building height and operational requirements.

Q: Do you offer a crane with a telescopic mast?
A: We do not offer telescopic masts as a standard product, but we can discuss custom solutions for specific applications.

Q: What is the maximum capacity of a single-girder crane?
A: Our single-girder overhead cranes are typically available up to 20 tons. For higher capacities, we recommend our double-girder models.

Q: Can you provide a crane with a special lifting mechanism?
A: Yes, we can equip cranes with various lifting mechanisms, including wire rope hoists, chain hoists, or specialized lifting beams, depending on the application.

Q: Do you offer a crane with a variable-speed drive?
A: Yes, we offer variable-frequency drives (VFD) for all crane motions, providing smooth acceleration and deceleration for precise load handling.

Q: What is the maximum ambient humidity for operation?
A: Our standard cranes are designed for operation in humidity levels up to 95% non-condensing. Specialized versions are available for higher humidity environments.

Q: Can you provide a crane with a special rail gauge?
A: Yes, the rail gauge (span) can be customized to match your existing runway system or new installation requirements.

Q: Do you offer a crane with a load cell?
A: Yes, we can integrate load cells and digital weight indicators to provide accurate load monitoring and overload protection.

Q: What is the maximum number of crane movements per hour?
A: The maximum number of movements per hour depends on the duty classification. Our heavy-duty cranes are designed for high-frequency operations, typically up to 150 starts per hour.

Q: Can you provide a crane with a special power supply cable?
A: Yes, we offer various cable types and lengths, including flat cables for festoon systems and reeling drums, to suit your power supply configuration.

Q: Do you offer a crane with a remote diagnostic system?
A: Yes, our advanced remote diagnostic system allows our engineers to monitor the crane's health and performance remotely, enabling proactive maintenance.

Q: What is the minimum span for a gantry crane?
A: The minimum span for a gantry crane is typically around 3 meters, but we can design smaller custom solutions for specific applications.

Q: Can you provide a crane with a special control panel?
A: Yes, we can customize the control panel layout, components, and interface to meet your specific operational and ergonomic requirements.

Q: Do you offer a crane with a hydraulic lifting system?
A: While our standard cranes use electric hoists, we can discuss custom solutions with hydraulic lifting systems for specialized applications.

Q: What is the maximum allowable wind speed for crane installation?
A: For installation, the maximum allowable wind speed is typically 10 m/s (36 km/h) to ensure the safety of personnel and equipment.

Q: Can you provide a crane with a special hook type?
A: Yes, we offer various hook types, including C-hooks, lifting beams, and custom-designed end effectors, to handle different load shapes and sizes.

Q: Do you offer a crane with a special painting system?
A: Yes, we offer multi-layer painting systems with epoxy primers and polyurethane topcoats for superior corrosion protection and durability.

Q: What is the maximum length of the crane runway?
A: The maximum runway length is not limited by our cranes, but it is determined by the building structure and expansion joints. We can design cranes for any runway length.

Q: Can you provide a crane with a special lighting system?
A: Yes, we can install work lights, warning lights, and other lighting systems on the crane to improve visibility and safety.

Q: Do you offer a crane with a special alarm system?
A: Yes, we can equip cranes with audible and visual alarms for movement, overload, and other safety warnings.

Q: What is the maximum allowable noise level?
A: Our cranes are designed to operate below 85 dB(A) at the operator's position, complying with common workplace safety regulations.

Q: Can you provide a crane with a special control voltage?
A: Yes, we can customize the control voltage to 24V DC, 48V DC, 110V AC, or 220V AC, depending on your safety and system requirements.

Q: Do you offer a crane with a special emergency stop system?
A: Yes, we provide multiple emergency stop options, including push-button stations, pull-cord switches, and remote-controlled emergency stops.

Q: What is the maximum allowable temperature for the motor?
A: The motors are designed for a maximum ambient temperature of 40°C, with insulation class F or H, allowing for a temperature rise of up to 105°C or 125°C respectively.

Q: Can you provide a crane with a special lubrication system?
A: Yes, we offer centralized lubrication systems for the crane's moving parts,

Key Parameters for Non-Ferrous Metal Smelting

Kelude Service Advantages for Non-Ferrous Metal Smelting

A: Kelude Heavy Industry has years of experience in the non-ferrous metal smelting sector. Backed by a 50,000 m² production facility and an ISO 9001 Quality Management System certification, we supply high-temperature and anti-corrosion crane solutions for aluminum, copper, lead-zinc, and rare earth smelting operations.