이중 대들보 오버헤드 크레인

Introduction to Double Girder Overhead Cranes

A double girder overhead crane is a robust material handling equipment designed to lift and transport heavy loads in industrial settings. Engineered with two parallel main girders, it delivers superior stability and load-bearing capacity compared to single girder models, making it the go-to choice for heavy-duty applications such as steel mills, 제조 공장, 창고, 건설 현장. Whether you need to move machinery, raw materials, or finished products, our double girder overhead cranes combine precision, 내구성, and safety to optimize your workflow.

What is a Double Girder Overhead Crane?

A double girder overhead crane is a type of bridge crane consisting of two horizontal main girders supported by end trucks (or end carriages) that run along elevated rails (runways) mounted on building columns or standalone structures. The crane’s lifting mechanism—typically a hoist or trolley—is mounted on a trolley that travels along the length of the main girders, allowing 360° coverage of the workspace below.

같지 않은 single girder overhead cranes, which rely on a single main beam, double girder designs distribute weight more evenly, enabling them to handle much heavier loads (often up to 500 tons or more). This makes them essential for industries requiring frequent heavy lifting, where reliability and safety are non-negotiable.

Key Features of Double Girder Overhead Cranes

Our double girder overhead cranes are built to excel in demanding environments. Here are their standout features:

• 1. 높은 부하 용량: Designed to handle heavy loads from 10 tons up to 500 톤, making them ideal for heavy-industry applications.
• 2. 뛰어난 안정성: Two main girders distribute weight evenly, reducing sway and ensuring stable operation even with maximum loads.
• 3. Extended Span Options: Available with spans from 10 meters to 35 미터, adaptable to large workspaces like warehouses or factory floors.
• 4. 정밀제어: Equipped with advanced hoisting and trolley mechanisms for smooth, accurate positioning of loads—critical for delicate or high-value materials.
• 5. 내구성 있는 구조: Made from high-strength steel with anti-corrosion coatings, ensuring long-term performance in harsh conditions (예를 들어, high temperatures, 먼지, or moisture).
• 6. 향상된 안전: Integrated safety features include overload protection, 비상 정지 버튼, 리미트 스위치, and anti-collision devices to prevent accidents.
• 7. 사용자 정의 가능한 디자인: Can be tailored with optional extras like remote control, frequency inverters for variable speed, or specialized hooks for unique load types (예를 들어, 코일, 컨테이너).

기술 사양

Structure of a Double Girder Overhead Crane

A double girder overhead crane consists of several key components working together to ensure efficient lifting and movement:

1. 주요 대들보

주요 대들보

Two parallel steel beams (girders) that form the bridge structure. They bear the load of the trolley and the lifted material, requiring high strength and rigidity.

2. 엔드 트럭 (엔드 캐리지)

엔드 트럭

Mounted at both ends of the main girders, these house the wheels and motors that drive the crane along the runway rails.

3. 트롤리

트롤리

A movable unit that travels along the top or bottom of the main girders. It carries the hoist and is powered by its own motor for horizontal movement.

4. 감아 올리기

감아 올리기

The lifting mechanism, including a crane drum, wire rope/cable, 그리고 크레인 후크. It is responsible for raising and lowering loads, with options for electric or hydraulic operation.

5. 전기 시스템

전기 시스템

모터 포함, 제어판, 스위치, and wiring to power and operate the crane, 트롤리, and hoist.

6. 안전장치

리프팅 높이 제한기

Overload limiters, travel limit switches, 비상 정지 시스템, and anti-sway devices to ensure safe operation.

FAQ: 이중 대들보 오버헤드 크레인

Q1: What’s the difference between a double girder and single girder overhead crane?

에이: 이중 대들보 크레인에는 두 개의 주요 대들보가 있습니다., 더 높은 부하 용량 제공 (10+ 톤) 안정성, making them suitable for heavy-duty use. Single girder cranes have one main girder, are lighter, and better for lighter loads (최대 10 톤) in smaller workspaces.

Q2: Which industries use double girder overhead cranes?

에이: They are widely used in steel mills, automotive manufacturing, 조선소, 건설 현장, 창고 (for heavy pallet handling), and power plants.

Q3: How often should a double girder overhead crane be maintained?

에이: 정기점검 (매일 착용 점검, 매끄럽게 하기) and professional maintenance (every 6–12 months) are recommended to ensure safety and longevity.

Q4: Can double girder cranes be customized for specific applications?

에이: 예. We offer customizations for load capacity, 기간, 리프팅 높이, 제어 시스템, and specialized attachments (예를 들어, magnets for metal handling, grabs for bulk materials).

Q5: Are double girder overhead cranes compliant with international safety standards?

에이: Our cranes meet ISO, FEM, and OSHA standards, with built-in safety features to ensure compliance with global industrial regulations.

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