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, bergerak, 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, mengurangkan buruh manual, and enhance safety when handling weights from a few tons to hundreds of tons. They are customizable to fit specific workspace dimensions, keperluan beban, dan keadaan alam sekitar, making them indispensable in manufacturing, logistik, and heavy industries.

Key Features of Overhead Bridge Cranes

Overhead Bridge Crane

Overhead bridge cranes are engineered for reliability, kecekapan, dan keselamatan. Here are their core features:

1. Kapasiti beban tinggi: Designed to handle loads ranging from 1 ton to over 500 tan, suitable for light to ultra-heavy lifting tasks.
2. Precise Control: Dilengkapi dengan sistem angkat dan troli maju (manual, elektrik, or hydraulic) untuk lancar, accurate load positioning—critical for delicate operations like machinery assembly.
3. Durable Construction: Built with high-strength steel girders, reinforced runways, and corrosion-resistant components to withstand harsh environments (Mis., high temperatures, habuk, or humidity).
4. Pematuhan keselamatan: Ciri keselamatan bersepadu termasuk perlindungan beban lampau, Butang berhenti kecemasan, had suis, and anti-collision systems, meeting global standards (OSHA, ISO, Fem).
5. Kecekapan ruang: 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, dengan pilihan untuk jangka masa panjang, mengangkat ketinggian, power sources (elektrik, diesel), dan automasi (for unmanned operations).

Single Girder vs. Double Girder Overhead Bridge Cranes: What’s the Difference?

Single girder overhead bridge crane

Double girder overhead bridge crane

Crane Overhead Girder Double

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

Ciri	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.
Kapasiti beban	Hingga 20 tan (standard); 50 tan (heavy-duty models).	20 tons and above (commonly 50–500+ tons).
Panjang span	Ideal for spans up to 30 meter.	Suitable for longer spans (hingga 50+ meter).
Mengangkat ketinggian	Moderate (limited by single girder strength).	Higher lifting heights (extra clearance due to dual girders).
Kos	More affordable (simpler design, lower material use).	Kos awal yang lebih tinggi (sturdier build, larger components).
Terbaik untuk	Light to medium loads; small to medium facilities (Mis., bengkel, gudang).	Heavy loads, large spans, or harsh environments (Mis., Kilang keluli, Limbungan kapal).

Technical Specifications of Overhead Bridge Cranes

Kren jambatan overhead

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

Jenis Model	Max Lifting Capacity	Panjang span	Mengangkat ketinggian	Kelas pekerja (ISO/FEM)*	Bekalan kuasa	Kelajuan angkat
Single Girder (Standard)	1-20 tan	5–30 m	3–12 m	A3–A5	380V/3PH/50Hz (adat)	0.5–10 m/min
Single Girder (Tugas berat)	20–50 tons	10–25 m	5–15 m	A5–A6	380V/3PH/50Hz (adat)	0.3-8 m/saya
Double Girder (Standard)	20–100 tons	10–40 m	6–20 m	A6–A7	380V/3PH/50Hz (adat)	0.2–6 m/min
Double Girder (Ultra-Heavy)	100–500+ tons	15–50+ m	8–30 m	A7–A8	Adat (diesel/electric)	0.1–4 m/min

Kelas pekerja: 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

Kren jambatan overhead

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

1. Pembuatan: Moving raw materials (keluli, aluminium) and finished products on assembly lines (Automotif, Aeroangkasa, jentera).
2. Pergudangan & Logistik: Loading/unloading cargo, menyusun palet, and organizing inventory in distribution centers.
3. Metallurgy: Handling molten metal, jongkong, and rolled steel in foundries and steel mills.
4. Pembinaan: Lifting building materials (steel beams, panel konkrit) in prefabrication yards or on-site.
5. Perlombongan: Transporting ore, peralatan, and components in mines or processing plants.
6. Pembuatan kapal: 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?

Kren jambatan overhead

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

1. Tentukan keperluan beban: 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 (mengangkat ketinggian) to ensure the crane fits.
3. Assess Working Conditions: Consider environmental factors—high temperatures, habuk, 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 (Mis., A7 for 24/7 heavy use).
5. Set a Budget: Kren overhead tunggal are more cost-effective for light tasks; double girder cranes are a long-term investment for heavy loads.
6. Prioritize Safety & Pematuhan: Ensure the crane meets local regulations (Mis., OSHA in the U.S., CE in the EU) and includes essential safety features.

Soalan Lazim: Overhead Bridge Crane

Q1: How often should an overhead bridge crane be inspected?

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

S2: Can overhead bridge cranes be automated?

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

Q3: What’s the lifespan of an overhead bridge crane?

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

Q4: How is an overhead bridge crane installed?

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

S5: What’s the difference between an overhead bridge crane and a gantry crane?

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

Bersedia untuk meningkatkan kecekapan pengendalian bahan anda? Contact us for a custom overhead bridge crane solution tailored to your industry and workflow.

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