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New Types Heavy Duty Double Girder Overhead CraneCategory—General Industrial Crane -
Two Purpose Bridge Crane Include Grab and HookCategory—General Industrial Crane -
U typed Double Girder Hook Gantry CraneCategory—General Industrial Crane -
Low Headroom Single Girder Overhead CraneCategory—General Industrial Crane
The QY Series Insulated Overhead Crane shares the fundamental structural design of a standard bridge crane with a hook. Its critical distinction lies in its integrated insulation system, specifically engineered to protect the operator. This system prevents electrical currents, which could be transmitted from lifted equipment, from traveling through the crane and endangering personnel. Key insulation components are strategically installed at the hook assembly, trolley frame, and trolley wheels (or beneath the crane rails).
Core Construction & Operational Mechanism
Built for heavy-duty cycles, this crane prioritizes operational integrity and safety. Its primary framework consists of a robust, double-welded box girder, designed to meet DIN/FEM standards for minimal beam deflection. The structure utilizes high-grade steel (Q235B, Q345B) and high-strength manganese steel (16Mn) for the trolley rails, ensuring long-term durability.
The crane's movement is segmented into three distinct, electrically isolated sections to create multiple barriers against current:
Between the hook/pulley assembly and the lifting mechanism.
Between the lifting system and the trolley frame.
Between the trolley frame and the main bridge structure.
Each insulating barrier is constructed from high-performance materials like epoxy-phenolic glass cloth laminate, guaranteeing a resistance value of no less than 1 MΩ under standard conditions (20-25°C, ≤85% humidity).
Key Safety & Performance Features
Dual-Brake Hoisting System: The main hoist is equipped with a redundant, dual-brake mechanism for failsafe load control and enhanced security.
Corrosion-Resistant Finish: A long-lasting, 120μm thick epoxy zinc-rich coating system protects against corrosion while maintaining a superior aesthetic.
Precision Assembly: The main girder and end beams are joined with high-strength bolts, ensuring structural accuracy and overall machine strength.
Integrated Maintenance Walkway: A secure side walkway with patterned flooring and handrails provides safe and easy access for inspection and servicing.
Rugged End Trucks: Equipped with resilient polyurethane buffers, anti-derailment plates, and either flat or double-rim wheels mounted on anti-friction bearings.
Operator Control Options
Pendant Control: Features a 36V safety voltage. The IP65-rated pendant is directly connected to the trolley, allowing the operator to move with the crane for precise load positioning. It includes two-speed buttons and a prominent emergency stop.
Radio Remote Control: Offers ground-based operation with a 24V safety voltage and a reliable range of over 100 meters. Using a system with thousands of frequency points to prevent interference, it is available with joysticks or push-buttons and an emergency stop (IP65 rated).
Enclosed Operator Cab: Provides a climate-controlled environment with a professional, adjustable seat and panoramic visibility. Control is achieved via intuitive joystick stations and master controllers for all crane functions.
Comprehensive Safety Protection System
The crane is fitted with multiple protective devices, including overload limiters that disable hoisting when exceeded, travel limit switches, and wireless anti-collision systems. It also features an anti-falling device for the hoist motor, emergency stop circuits, audible/visual alarms, safety hook latches, and comprehensive voltage/current overload protection.
Customization & Support
We specialize in tailoring cranes to your specific operational requirements. To provide an accurate solution, please share details such as lifting capacity, span, lifting height, power supply voltage, required rail length, the type of materials to be lifted, and your workshop layout.
Our commitment includes a one-year warranty on all cranes, with free replacement parts for any manufacturing defects. After the warranty period, we continue to support your operations by providing spare parts at preferential cost prices.
The QY Insulated Double Girder Overhead Crane is specifically engineered for challenging industrial settings where electrical conductivity poses a significant operational risk. Its advanced insulation system makes it an indispensable asset in facilities handling conductive materials, particularly in non-ferrous metal production.
1. Critical Role in Electrolytic Metal Production
This crane plays a vital role in electrolysis facilities where aluminum and magnesium are extracted from their molten salts. The process involves substantial electrical currents that can potentially turn lifted materials into conductors. The QY crane's comprehensive insulation barriers—at the hook, trolley, and bridge interfaces—create essential safety layers that prevent current transmission, protecting both operators and equipment during crucial lifting operations in electrolysis cells.
2. Heavy-Duty Material Transport in Smelting Operations
Within metallurgy workshops, the crane demonstrates exceptional capability in handling raw materials, finished products, and processing equipment. Its robust double girder construction ensures stable transportation of anodes, cathodes, molten metal containers, and finished ingots. The insulation system remains effective even when moving materials at elevated temperatures, maintaining safety throughout demanding smelting and refining processes.
3. Enhanced Operational Safety in Conductive Environments
The QY series addresses unique hazards present in non-ferrous metal facilities. Unlike standard cranes, its specialized insulation prevents electrical currents from traveling through the crane structure when lifting charged equipment or materials. This protection is crucial when maneuvering components near electrolytic baths or handling materials that may have retained electrical charge, significantly reducing electrocution risks for personnel.
4. Versatile Applications Across Metal Processing Stages
Beyond primary production, this crane serves multiple functions throughout metal processing facilities:
Transferring raw materials to smelting furnaces
Positioning molds in casting areas
Relocating finished products to storage or shipping areas
Supporting maintenance operations in electrically active zones
Handling processing equipment requiring electrical isolation
5. Optimizing Production Efficiency and Workplace Safety
The integration of QY cranes into metal production workflows enhances both productivity and safety protocols. Their reliable performance in electrically hazardous environments minimizes production stoppages due to safety concerns while providing the lifting capacity necessary for heavy industrial operations. The combination of insulated protection and robust lifting capability makes them particularly valuable for facilities seeking to maximize output without compromising worker safety.
This specialized crane solution enables metal producers to maintain continuous operations while addressing the unique safety challenges presented by electrolytic processes and conductive material handling, ultimately supporting more efficient and protected industrial environments.
