ডাবল গার্ডার ওভারহেড ক্রেন

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, উত্পাদন গাছপালা, গুদাম, এবং নির্মাণ সাইট. আপনি যন্ত্রপাতি সরানো প্রয়োজন কিনা, কাঁচামাল, বা সমাপ্ত পণ্য, our double girder overhead cranes combine precision, স্থায়িত্ব, 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.

Unlike একক গার্ডার ওভারহেড ক্রেন, 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 টন বা তার বেশি). 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. উচ্চ লোড ক্ষমতা: Designed to handle heavy loads from 10 টন পর্যন্ত 500 টন, making them ideal for heavy-industry applications.
• 2. উচ্চতর স্থিতিশীলতা: 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 মিটার থেকে 35 মিটার, adaptable to large workspaces like warehouses or factory floors.
• 4. যথার্থ নিয়ন্ত্রণ: Equipped with advanced hoisting and trolley mechanisms for smooth, accurate positioning of loads—critical for delicate or high-value materials.
• 5. টেকসই নির্মাণ: Made from high-strength steel with anti-corrosion coatings, ensuring long-term performance in harsh conditions (যেমন, উচ্চ তাপমাত্রা, ধুলো, or moisture).
• 6. বর্ধিত সুরক্ষা: Integrated safety features include overload protection, জরুরী স্টপ বোতাম, সীমা সুইচ, and anti-collision devices to prevent accidents.
• 7. কাস্টমাইজযোগ্য ডিজাইন: Can be tailored with optional extras like remote control, frequency inverters for variable speed, or specialized hooks for unique load types (যেমন, কয়েল, পাত্রে).

প্রযুক্তিগত বৈশিষ্ট্য

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. Main Girders

Main Girders

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. শেষ ট্রাক (শেষ গাড়ি)

শেষ ট্রাক

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

3. ট্রলি

ট্রলি

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. উত্তোলন

উত্তোলন

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

5. বৈদ্যুতিক সিস্টেম

বৈদ্যুতিক সিস্টেম

Includes motors, নিয়ন্ত্রণ প্যানেল, সুইচ, and wiring to power and operate the crane, ট্রলি, এবং উত্তোলন.

6. নিরাপত্তা ডিভাইস

উচ্চতা লিমিটার উত্তোলন

Overload limiters, ভ্রমণ সীমা সুইচ, জরুরী স্টপ সিস্টেম, and anti-sway devices to ensure safe operation.

FAQ: ডাবল গার্ডার ওভারহেড ক্রেন

প্রশ্ন ১: What’s the difference between a double girder and single girder overhead crane?

ক: Double girder cranes have two main girders, offering higher load capacity (10+ টন) and stability, making them suitable for heavy-duty use. Single girder cranes have one main girder, হালকা হয়, and better for lighter loads (পর্যন্ত 10 টন) in smaller workspaces.

প্রশ্ন ২: Which industries use double girder overhead cranes?

ক: They are widely used in steel mills, automotive manufacturing, শিপইয়ার্ড, নির্মাণ সাইট, গুদাম (for heavy pallet handling), and power plants.

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

ক: রুটিন পরিদর্শন (daily checks for wear, তৈলাক্তকরণ) and professional maintenance (every 6–12 months) are recommended to ensure safety and longevity.

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

ক: হ্যাঁ. We offer customizations for load capacity, স্প্যান, উত্তোলন উচ্চতা, নিয়ন্ত্রণ ব্যবস্থা, and specialized attachments (যেমন, magnets for metal handling, grabs for bulk materials).

প্রশ্ন5: Are double girder overhead cranes compliant with international safety standards?

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

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