3t QDX Explosion-Proof Double Girder Crane, 6m Lift, 10.5m Span for USA

Product Description

Double Girder Overhead Crane — Reliable Lifting for Heavy Industry Our European-standard overhead crane features a welded box-girder structure with FEA-analyzed strength, low headroom design and smooth VFD control. Available in single and double girder types, it meets A3–A8 working duty and is widely used in manufacturing, casting, warehousing and logistics. OEM / ODM customization is welcome.

European Standard Double Girder Overhead Crane is our best-selling industrial bridge crane for workshops, foundries and steel plants. Built to European design standards, the double girder overhead crane offers stable lifting from 1t to 500t, a span of 7.5–40m and lifting height up to 30m, all fully customizable to your workshop. Equipped with VFD soft start, dual braking and a CE / ISO9001 certified quality system, it delivers precise, safe and energy-saving material handling for years of heavy-duty service.

Core Components & Highlights

Electric Wire Rope Hoist — compact European design, low headroom, high lifting precision
Drive Motor — VFD option for soft start/stop and precise load positioning
Dual Braking System — electromagnetic + safety brake for reliable load holding
Welded Box Main Girder — FEA-analyzed structure with anti-corrosion coating
IP54 Electrical System — overload, phase-loss and overheat protection

Main Structure & Components

Application Scope 

Double Main Girder: Adopts high-quality steel box beam integral welding process, after secondary stress relief annealing treatment, ensuring no long-term deformation and high structural stability.
 Electric Trolley & Hoisting Mechanism: Equipped with high-strength wire rope hoist, durable reducer and brake system, with strong bearing capacity and stable hoisting, realizing precise heavy-load positioning.
Drive System: Adopts VVVF variable frequency drive, with smooth start and stop, stable speed regulation and no impact on the body and goods, protecting equipment and materials effectively.
Electrical Control System: Centralized electric control box, waterproof and dustproof design, sensitive and stable circuit operation, with complete fault self-detection function.
Safety Protection System: Full set of standard safety devices to prevent overload, over-height, over-travel and collision, ensuring zero safety hazards during operation.

This heavy-duty double girder bridge crane is widely applicable to various industrial heavy-load lifting scenarios, covering global mainstream industrial fields:
metallurgy & Steel Industry: Lifting steel coils, steel ingots, molten steel equipment and heavy steel structures
Machinery Manufacturing: Handling large machine tools, equipment assembly, heavy parts turnover
Energy & Power Industry: Installation and maintenance of power plant equipment, wind power accessories, electrical equipment
Shipbuilding & Port Logistics: Workshop heavy parts handling, port cargo stacking and transshipment
Construction & Heavy Industry: Factory infrastructure construction, large mold handling, engineering equipment hoisting
Custom Special Scenarios: Explosion-proof, anti-corrosion and high-temperature resistant customized cranes for special workshops

Core Advantages 

1. All cranes undergo raw material inspection, production process monitoring, finished product load test and factory full inspection. Each equipment is 100% tested before delivery to ensure stable quality.

2. 120,000 m2 Large Factory Strength

Owned 120,000 m2 standardized production plant with complete independent production and testing workshops. Sufficient raw material inventory and standardized production management ensure stable delivery cycle, reliable mass production capacity and consistent product quality.

3.Global Certification Support: Products comply with ISO international quality system, CE, BV and other global certifications, supporting customers' local market access and inspection.

4.One-Stop Custom Service: Provide free design scheme according to customer's factory size, load demand and working environment. Support non-standard customized production and whole-process technical guidance.

5. Complete After-sales Guarantee

12-month full machine warranty and lifelong technical support. We provide one-stop service including solution design, customization, production and delivery. Professional team offers overseas remote installation, commissioning and fault guidance for worry-free equipment operation.

Specification

Concise Installation Case

This is a classic installed case of 50-ton heavy-duty double girder bridge crane, tailored for overseas heavy manufacturing factories for high-frequency heavy-load material handling. This customized crane features a 22.5m span, 12m lifting height and A6 working grade, fully adapting to long-duration continuous operation in industrial workshops.
Adopting integral box girder welding and stress relief treatment, the crane delivers high structural rigidity and zero deformation under long-term 40-ton load. Equipped with European VVVF variable frequency drive system, it achieves stable operation, low vibration and precise positioning for heavy workpieces. Complete standard safety devices ensure full compliance with international industrial safety specifications.