天井橋クレーン

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天井橋クレーンとは?

天井橋クレーン

An overhead bridge crane is a heavy-duty material handling equipment designed to lift, 動く, 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, load requirements, および環境条件, making them indispensable in manufacturing, ロジスティクス, and heavy industries.

Key Features of Overhead Bridge Cranes

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Overhead bridge cranes are engineered for reliability, 効率, そして安全. Here are their core features:

1. 高負荷容量: Designed to handle loads ranging from 1 トンからオーバーまで 500 トン, suitable for light to ultra-heavy lifting tasks.
2. Precise Control: 先進的なホイストおよびトロリーシステムを装備 (マニュアル, 電気, or hydraulic) for smooth, accurate load positioning—critical for delicate operations like machinery assembly.
3. 耐久性のある構造: Built with high-strength steel girders, reinforced runways, and corrosion-resistant components to withstand harsh environments (例えば。, high temperatures, dust, or humidity).
4. 安全コンプライアンス: Integrated safety features include overload protection, 非常停止ボタン, リミットスイッチ, and anti-collision systems, meeting global standards (オシャ, ISO, fem).
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, スパン長のオプション付き, 持ち上げ高さ, power sources (電気, diesel), and automation (for unmanned operations).

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

Single girder overhead bridge crane

Double girder overhead bridge crane

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

特徴	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.
負荷容量	まで 20 トン (標準); 50 トン (heavy-duty models).	20 tons and above (commonly 50–500+ tons).
スパン長	Ideal for spans up to 30 メーター.	Suitable for longer spans (まで 50+ メーター).
高さを持ち上げる	Moderate (limited by single girder strength).	Higher lifting heights (extra clearance due to dual girders).
料金	More affordable (simpler design, lower material use).	初期費用が高い (sturdier build, larger components).
最適な用途	Light to medium loads; small to medium facilities (例えば。, ワークショップ, 倉庫).	Heavy loads, large spans, or harsh environments (例えば。, 製鉄所, 造船所).

Technical Specifications of Overhead Bridge Cranes

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

モデルタイプ	Max Lifting Capacity	スパン長	高さを持ち上げる	労働者階級 (ISO/FEM)*	電源	ホイスト速度
単桁 (標準)	1–20 tons	5–30 m	3–12 m	A3–A5	380V/3Ph/50Hz (カスタム)	0.5–10 m/min
単桁 (耐久性の高い)	20–50 tons	10–25 m	5–15 m	A5–A6	380V/3Ph/50Hz (カスタム)	0.3–8メートル/私
二重桁 (標準)	20–100トン	10–40 m	6–20 m	A6–A7	380V/3Ph/50Hz (カスタム)	0.2–6 m/min
二重桁 (Ultra-Heavy)	100–500トン以上	15–50+ m	8–30 m	A7–A8	カスタム (diesel/electric)	0.1–4 m/min

労働者階級: 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

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

1. 製造: Moving raw materials (鋼鉄, アルミニウム) and finished products on assembly lines (自動車, 航空宇宙, 機械).
2. 倉庫 & ロジスティクス: Loading/unloading cargo, stacking pallets, and organizing inventory in distribution centers.
3. Metallurgy: Handling molten metal, インゴット, and rolled steel in foundries and steel mills.
4. 工事: Lifting building materials (鉄骨梁, コンクリートパネル) in prefabrication yards or on-site.
5. マイニング: Transporting ore, 装置, and components in mines or processing plants.
6. 造船: 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?

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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 (持ち上げ高さ) to ensure the crane fits.
3. Assess Working Conditions: Consider environmental factors—high temperatures, dust, 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 (例えば。, A7 for 24/7 heavy use).
5. Set a Budget: シングルガーダ天井クレーン are more cost-effective for light tasks; double girder cranes are a long-term investment for heavy loads.
6. Prioritize Safety & コンプライアンス: Ensure the crane meets local regulations (例えば。, OSHA in the U.S., CE in the EU) and includes essential safety features.

よくある質問: 天井橋クレーン

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.

Q2: Can overhead bridge cranes be automated?

a: はい. 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.

Q5: 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 ガントリークレーン have ground-supported legs—making gantries better for outdoor or open spaces.

マテリアルハンドリングの効率を向上させる準備ができています? Contact us for a custom overhead bridge crane solution tailored to your industry and workflow.

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