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Lifting Capacity: 5–500 tons （Customizable）
Span Length: 10.5–31.5m（Customizable）
Lifting Height: 6–30 m（Customizable）
Product Overview
A Double Girder Overhead Crane is a heavy-duty industrial lifting equipment designed for large tonnage, long span and high-frequency working conditions. The crane adopts double box girder structure, composed of main girders, end carriages, electric hoist/winch trolley, traveling mechanism and a full electrical control system. With high overall rigidity, strong bearing capacity and high working duty classification, it is the preferred lifting equipment for heavy industrial workshops.
We supply four mainstream series: LH / LHE hoist double girder crane, QD conventional winch crane, QDX European lightweight winch crane.
Application Scenarios
Double girder overhead cranes are core heavy-duty lifting equipment in industrial production, widely used in various heavy-load working conditions. Covering machinery manufacturing, steel processing and metallurgical forging, mining and chemical industries, shipbuilding, warehouse logistics and large-scale industrial park production lines, they are mainly used for heavy workpiece handling, large equipment assembly, mold debugging and replacement, factory daily cargo handling and workshop equipment overhaul.
Special customized models can also meet the professional operation needs of flammable, explosive, high-temperature and dusty special industrial environments.
Different Types of Double Girder Overhead Cranes
XINGHUOTEC double girder overhead crane series adopt modular standardized design, covering conventional industrial, European compact and special customized models. Classified by trolley structure, mechanical configuration and working level, each series is independently developed and optimized, targeting different tonnage ranges, operating frequencies and complex industrial environments. They can perfectly adapt to light intermittent operation, medium-duty cycle operation and heavy-duty continuous high-frequency operation scenarios.
QD Type Traditional Double Girder Overhead Crane
Technical features:
Equipped with professional winch trolley and independent heavy-duty reduction mechanism, QD type crane is the classic heavy-duty model. It features ultra-high structural stability, strong overload resistance and durable mechanical performance. Its lifting capacity ranges from 5-500 tons (customizable), the working level reaches A5-A7, supporting 24-hour continuous high-frequency operation.
Ideal for:
Super heavy-load handling, mold replacement and equipment maintenance in heavy industrial scenarios such as steel mills, forging plants and heavy machinery workshops.
QDX European Standard Compact Double Girder Overhead Crane
Technical features:
Designed with optimized European lightweight structure, this crane boasts low headroom, limited space occupation, light self-weight and low wheel pressure. It is equipped with a full variable frequency speed regulation system that ensures smooth, impact-free starting, traveling and stopping. It features low noise and outstanding energy efficiency.
Ideal for:
Modern standardized workshops, high-precision processing workshops and intelligent factory renovation projects.
LH / LHE Type Electric Hoist Double Girder Overhead Crane
Technical features:
Fitted with an integrated electric wire rope hoist trolley, LH type crane has a compact overall structure, light self-weight and low running resistance. It strikes a perfect balance between cost efficiency and performance. Equipped with CD single-speed & MD dual-speed wire rope electric hoist, capacity 3-50 ton, duty class A3–A5.
Ideal for:
Medium-load and frequent handling operations in general machinery processing, hardware manufacturing, warehouse turnover and ordinary industrial workshops.
Special Functional Custom Double Girder Crane
This series covers explosion-proof, metallurgical casting, electromagnetic suction and grab type double girder cranes. Special models adopt targeted structural optimization and electrical sealing protection, which can adapt to flammable and explosive, high-temperature thermal radiation, bulk material handling and other harsh working conditions, realizing professional and customized lifting operations for special industries.
Foundry Double Girder Overhead Crane
Double Girder Overhead Crane with Electromagnetic Chuck
Electric Grab Double Girder Overhead Crane
Core Advantages of Double Girder Overhead Crane
● Super Heavy Load Bearing & Strong Stability: Different from single girder cranes, the double girder structure doubles overall bearing strength and structural rigidity. The optimized box-type welded main beam has extremely low deflection and outstanding deformation resistance. It can stably bear 5-500 tons heavy objects without shaking or offset during lifting and traveling, effectively solving the problem of insufficient load capacity of light-duty cranes and adapting to long-term heavy-load operation.
● Full Variable Frequency & Low-Noise Operation: Equipped with brand-new domestic and imported motors and hard-tooth surface reducers, the crane adopts full variable frequency speed regulation. The crane realizes soft start and soft stop with impact-free movement，accurate positioning and stable lifting. The whole machine runs with low vibration and low noise, meeting the environmental protection and high-precision operation requirements of modern factories.
● Multiple safety protections: The crane is equipped with a full range of safety protection devices including overload limiting device, lifting height limit switch, travel limit switch, buffer anti-collision device and emergency stop power-off system. It can automatically alarm and cut off power in case of overload, overtravel or abnormal operation, effectively avoiding equipment damage and safety accidents, ensuring 100% safe operation.
● Strong Scene Adaptability & Customization: Optional control: pendant control, wireless remote control, driver cabin. Customizable span, lifting height, inverter, explosion-proof, main & auxiliary hook, anti-sway system available. It complied with CE, ISO and FEM standards, and it can be optimized and upgraded for special environments such as high temperature, low temperature, dusty, explosion-proof and corrosion resistance.
● Low Operation & Maintenance Cost: Adopting a standardized and modular design, the equipment has universal and interchangeable accessories with simple daily inspection and maintenance. The failure rate is extremely low during long-term operation, and no complicated professional maintenance is required. It greatly saves later labor and maintenance costs for customers.
Technical Parameter
How to Choose the Right Double Girder Overhead Crane?
Choosing a suitable double girder overhead crane is critical to production efficiency, operational safety and long-term return on investment. Many customers blindly pursue large tonnage or low price, resulting in resources waste or insufficient equipment performance. We have sorted out professional and practical selection guidelines to help customers quickly confirm the most suitable crane model.
Step 1: Confirm Actual Lifting Demand
Confirm the maximum self-weight of frequently lifted workpieces, and reserve a 10%-20% load margin. Do not select the crane merely according to the maximum occasional load. For long-term heavy-duty operation, prefer a higher working duty classification to ensure stable operation and prolong service life.
Step 2: Match Workshop Basic Data
Accurately measure the factory building span, track installation height, effective lifting height and trolley running limit distance. Confirm the headroom size to select standard type or low-headroom European-type crane, so as to maximize the workshop space utilization.
Step 3: Select Working Level According to Frequency
A3-A4 for intermittent and light-frequency daily handling; A5 for conventional factory continuous operation; A6-A7 for 24-hour frequent heavy-duty operation such as steel mills and forging workshops. A reasonable working level can reduce failure rate and maintenance cost.
Step 4: Choose Configuration According to Control Demand
Pendant control for economical and simple operation; wireless remote control for flexible and long-distance operation; cabin control for large-span, high-lift and heavy-load professional workshops. Variable frequency configuration is recommended for precise positioning and stable operation.
Step 5: Customize Special Functions for Special Environments
For chemical, oil and gas workshops, choose explosion-proof configuration; for metallurgical and foundry workshops, adopt high-temperature-resistant and heat-insulating structure; for dusty and humid workshops, upgrade dustproof and waterproof electrical components to adapt to harsh working conditions.
Step 6: Focus on Manufacturer Strength & After-sales
Prioritize reliable manufacturers with complete qualified certificates, independent production capacity and perfect after-sales system. Standardized production processes ensure crane quality, and fast after-sales response guarantees long-term stable production of the factory.
We provide one-stop full services including professional scheme design, factory standardized production, strict quality inspection, safe packaging and global logistics, on-site installation and commissioning, operation training and lifelong after-sales technical support.
Delivery Service Introduction
We provide standardized delivery services for all series of cranes. Before shipment, we verify main components, electric hoist/winch trolley, electrical systems and full accessories according to packing lists to ensure completeness. Steel structures are protected against rust and scratches, while precision electrical parts are packaged with shockproof, moisture-proof and dust-proof materials. Rainproof reinforced packaging is applied for outdoor transportation. We track logistics in real time for on-time delivery and assist customers with on-site unpacking, inspection and handover.
Installation Service Introduction
Our certified professional installation team provides standardized one-stop installation, commissioning and acceptance services in strict accordance with national codes and safety standards, ensuring compliant installation, stable operation and reliable performance of cranes.
Our service covers site survey, construction plan formulation, track adjustment, beam assembly, hoist positioning, electrical wiring, safety device commissioning, overall calibration, no-load/load trial operation and final acceptance. We strictly control installation accuracy, standardize key procedures and implement full safety management to eliminate construction hazards.
After installation and commissioning, we conduct comprehensive performance and safety inspection to guarantee qualified lifting, traveling and braking functions. We deliver operation and maintenance training, deliver complete technical and certification documents, assist with equipment inspection and filing for compliant operation, and offer long-term after-sales maintenance and technical support.
On-site Cooperation Requirements for Customers
● Site and Foundation Condition Preparation: The customer shall complete the construction of crane beams, track foundations and embedded parts in accordance with drawings and national standards. Clean the construction site to ensure sufficient working space, and provide wind-proof, rain-proof and drainage facilities. Suspend construction in severe weather as required.
● Power Resource Supporting Cooperation: The customer shall provide stable 380V three-phase industrial power with a qualified distribution box, leakage and overload protection devices near the working area to ensure uninterrupted power during installation, commissioning and trial operation, with dedicated personnel for power management.
● Equipment Arrival and Hoisting Cooperation: Upon equipment arrival, the customer shall assign staff to cooperate with unpacking, inspection and handover. Prepare hoisting equipment such as truck crane and forklift, together with necessary tools and auxiliary labor to assist in unloading, handling and hoisting.
● On-site Safety and Construction Cooperation: The customer shall manage on-site safety, install safety barriers and warning signs, remove potential hazards and restrict unauthorized access. Cooperate with site entry procedures and safety briefings, assign on-site coordinators to resolve site and cross-operation issues and ensure valid working conditions.
● Acceptance and Training Cooperation: After commissioning, the customer shall arrange relevant personnel to cooperate with trial operation, testing and final acceptance. Participate in operation, maintenance and safety training to ensure standardized operation, and cooperate with equipment filing and annual inspection procedures.
Contact Us for Customized Solutions
We provide one-stop overhead crane solutions including free design, custom production, global shipping and full-cycle after-sales service. All products are strictly tested before delivery to ensure stable performance.
Send your workshop drawing & lifting demand to get free technical drawing & best quotation within 24 hours!
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