Overhead Bridge Crane

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What is an Overhead Bridge Crane?

Overhead Bridge Crane

An overhead bridge crane is a heavy-duty material handling equipment designed to lift, يتحرك, and position large or heavy loads horizontally across a fixed span. Suspended from or mounted on elevated runways (typically along the length of a facility), it consists of a bridge structure that travels along these runways, with a hoist or trolley system that moves perpendicular to the bridge—enabling precise, multi-directional load movement.

Widely used in industrial settings, overhead bridge cranes streamline operations, reduce manual labor, and enhance safety when handling weights from a few tons to hundreds of tons. They are customizable to fit specific workspace dimensions, متطلبات التحميل, والظروف البيئية, making them indispensable in manufacturing, الخدمات اللوجستية, and heavy industries.

Key Features of Overhead Bridge Cranes

Overhead Bridge Crane

Overhead bridge cranes are engineered for reliability, كفاءة, والسلامة. Here are their core features:

1. سعة حمولة عالية: Designed to handle loads ranging from 1 ton to over 500 طن, suitable for light to ultra-heavy lifting tasks.
2. Precise Control: Equipped with advanced hoist and trolley systems (يدوي, كهربائي, or hydraulic) لسلس, accurate load positioning—critical for delicate operations like machinery assembly.
3. بناء متين: Built with high-strength steel girders, reinforced runways, and corrosion-resistant components to withstand harsh environments (على سبيل المثال, درجات حرارة عالية, تراب, or humidity).
4. الامتثال للسلامة: تشمل ميزات السلامة المتكاملة الحماية من التحميل الزائد, أزرار التوقف في حالات الطوارئ, محولات الحد, and anti-collision systems, meeting global standards (OSHA, ISO, فيم).
5. Space Efficiency: Operates above ground level, freeing up floor space for other equipment or workflows—ideal for facilities with limited ground area.
6. Customizability: Available in single or double girder designs, مع خيارات لطول المدى, ارتفاع الرفع, power sources (كهربائي, ديزل), والأتمتة (for unmanned operations).

عاجر واحد مقابل. Double Girder Overhead Bridge Cranes: What’s the Difference?

Single girder overhead bridge crane

Double girder overhead bridge crane

Double girder overhead crane

Choosing between single girder and double girder overhead bridge cranes depends on your load requirements, workspace, and budget. Here’s a breakdown:

ميزة	Single Girder Overhead Bridge Crane	Double Girder Overhead Bridge Crane
Structure	One main girder (beam) supporting the hoist/trolley.	Two parallel girders with the hoist/trolley running between them.
سعة التحميل	حتى 20 طن (معيار); 50 طن (heavy-duty models).	20 tons and above (commonly 50–500+ tons).
طول الامتداد	Ideal for spans up to 30 متر.	Suitable for longer spans (حتى 50+ متر).
رفع الارتفاع	Moderate (limited by single girder strength).	Higher lifting heights (extra clearance due to dual girders).
Cost	More affordable (simpler design, lower material use).	Higher initial cost (sturdier build, larger components).
الأفضل ل	Light to medium loads; small to medium facilities (على سبيل المثال, ورش العمل, المستودعات).	Heavy loads, large spans, or harsh environments (على سبيل المثال, مصانع الصلب, أحواض بناء السفن).

Technical Specifications of Overhead Bridge Cranes

الرافعات الجسرية العلوية

Below is a general parameter table for common overhead bridge crane models. Custom specifications are available based on your needs:

نوع النموذج	Max Lifting Capacity	طول الامتداد	رفع الارتفاع	الطبقة العاملة (ISO/FEM)*	مزود الطاقة	سرعة الرافعة
Single Girder (معيار)	1– 20 طن	5–30 m	3–12 m	A3–A5	380فولت/3PH/50 هرتز (مخصص)	0.5–10 m/min
Single Girder (Heavy-Duty)	20– 50 طن	10–25 m	5–15 m	A5–A6	380فولت/3PH/50 هرتز (مخصص)	0.3-8 م/لي
عاجر مزدوج (معيار)	20–100 tons	10–40 m	6–20 m	A6–A7	380فولت/3PH/50 هرتز (مخصص)	0.2–6 m/min
عاجر مزدوج (Ultra-Heavy)	100–500+ tons	15–50+ m	8–30 m	A7–A8	مخصص (diesel/electric)	0.1–4 m/min

الطبقة العاملة: Indicates duty cycle (how often the crane operates under load). Higher classes (A7–A8) suit continuous, heavy-use environments.

Industries That Use Overhead Bridge Cranes

الرافعات الجسرية العلوية

Overhead bridge cranes are versatile across sectors requiring heavy material handling. Key applications include:

1. تصنيع: نقل المواد الخام (فُولاَذ, aluminum) and finished products on assembly lines (السيارات, الفضاء, الآلات).
2. التخزين & الخدمات اللوجستية: Loading/unloading cargo, stacking pallets, and organizing inventory in distribution centers.
3. علم المعادن: Handling molten metal, سبائك, and rolled steel in foundries and steel mills.
4. بناء: Lifting building materials (عوارض فولاذية, لوحات ملموسة) in prefabrication yards or on-site.
5. التعدين: Transporting ore, معدات, and components in mines or processing plants.
6. بناء السفن: Assembling large ship parts and moving heavy machinery in dry docks.
7. Waste Management: Handling bulk waste or recycling materials in treatment facilities.

Overhead Bridge Crane Manufacturing Process

overhead bridge crane manufacturing process

How to Choose the Right Overhead Bridge Crane?

الرافعات الجسرية العلوية

Follow these steps to select the perfect overhead bridge crane for your needs:

1. Determine Load Requirements: Calculate the maximum weight you’ll lift (include margins for future needs) to choose between single (≤20 tons) or double (≥20 tons) girder models.
2. Measure Your Workspace: Check the span (distance between runways) and available headroom (ارتفاع الرفع) to ensure the crane fits.
3. Assess Working Conditions: Consider environmental factors—high temperatures, تراب, or corrosive substances may require specialized coatings or components.
4. Evaluate Duty Cycle: Choose a working class (A3–A8) based on how often the crane will operate (على سبيل المثال, A7 for 24/7 heavy use).
5. Set a Budget: Single girder overhead cranes are more cost-effective for light tasks; double girder cranes are a long-term investment for heavy loads.
6. Prioritize Safety & امتثال: Ensure the crane meets local regulations (على سبيل المثال, OSHA in the U.S., CE in the EU) and includes essential safety features.

التعليمات: Overhead Bridge Crane

س 1: How often should an overhead bridge crane be inspected?

أ: Daily visual checks (for wear, leaks, or loose parts) and annual professional inspections are mandatory. Heavy-use cranes (A7–A8) may require quarterly inspections.

Q2: Can overhead bridge cranes be automated?

أ: نعم. Modern models can integrate with IoT systems for automated load tracking, scheduled movements, and remote operation—ideal for repetitive tasks.

س 3: What’s the lifespan of an overhead bridge crane?

أ: With proper maintenance, single girder cranes last 15–20 years; double girder cranes can operate for 25–30 years or longer.

س 4: How is an overhead bridge crane installed?

أ: Installation involves mounting runways to building columns or support structures, positioning the bridge, and integrating the hoist/trolley. Professional installation is recommended for safety.

س 5: What’s the difference between an overhead bridge crane and a gantry crane?

أ: Overhead bridge cranes run on elevated runways (attached to a building), while رافعات الرافعات have ground-supported legs—making gantries better for outdoor or open spaces.

Ready to enhance your material handling efficiency? Contact us for a custom overhead bridge crane solution tailored to your industry and workflow.

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