Custom Single Girder Overhead Bridge Crane | Electric Hoist Workshop Crane for Industrial Material Handling

 

RAYVANBO's single girder overhead bridge crane is a purpose-built lifting system crafted for the dynamic needs of modern industrial workshops, warehouses, and manufacturing plants. Unlike bulky ground-based lifting equipment, this crane mounts directly to overhead runway beams, freeing up 100% of floor space for unobstructed workflow-critical for high-density production environments handling 1–10 ton loads.

Paired with a premium electric wire rope hoist, it delivers millimeter-level lifting precision and smooth traversing, even in narrow workshop layouts. The crane's lightweight Q345B steel structure reduces structural stress on factory buildings, while its modular design cuts installation time by 35% compared to traditional cranes. Engineered for durability and low operational costs, it's the ideal choice for automotive parts production, machinery assembly, and raw material warehousing-delivering consistent performance across 15+ years of service life.

Structure & Components

The RAYVANBO single girder overhead crane is engineered as four interlocking modules, each optimized for performance and ease of service:

Main Girder Assembly

The box-section girder uses automatic submerged arc welding for a seamless, high-strength frame. It's connected to end carriages via torque-controlled high-strength bolts, enabling quick disassembly for transportation or relocation.

End Carriage System

Equipped with heavy-duty forged steel wheels and precision planetary gearboxes, the end carriages feature a synchronized dual-motor drive to prevent bridge skew and runway wear. Wheel pressure is distributed evenly to protect factory floor structures.

Electric Hoist Unit

The wire rope hoist includes a dual-brake system (electromagnetic + mechanical) for fail-safe stopping. A grooved drum and anti-slip wire rope (1960MPa tensile strength) ensure stable load lifting, with a built-in load sensor for overload protection.

Control & Electrical Panel

The PLC-based control panel integrates thermal overload protection, voltage surge suppression, and emergency stop circuits. All wiring uses waterproof connectors, and the panel is mounted in a dust-proof enclosure for long-term reliability.

Key Features

✅ High-Strength Lightweight Structure

The box-type single girder is forged from Q345B high-strength alloy steel, with a one-piece welded frame tested via ultrasonic flaw detection to eliminate structural weak points. This design achieves a 28% weight reduction vs. conventional cranes while maintaining a 10-ton load capacity, lowering building foundation costs.

✅ Intuitive Dual-Control Operation

Standard with both a handheld pendant (IP54 waterproof) and 50m wireless remote control, the crane lets operators choose the most convenient control method for their workspace. The VFD (variable frequency drive) system enables stepless speed adjustment (0.5–12 m/min lifting), preventing load sway and ensuring safe handling of delicate components.

✅ Low-Maintenance & Durable Build

Sealed gearboxes and lubricated-for-life bearings eliminate 90% of routine lubrication tasks. All metal surfaces receive a 3-layer epoxy zinc-rich coating (Sa2.5 shot blasting pre-treatment), resisting rust and corrosion for 10+ years in indoor industrial environments.

✅ Space-Maximizing Design

The low-headroom hoist configuration boosts vertical lifting height by 20% compared to standard models, making it perfect for workshops with low ceiling clearances. Compact end carriages reduce runway space requirements by 15%, fitting seamlessly into existing factory layouts without costly renovations.

 

Parameter	Base Model (5 Ton)	Custom Range
Rated Lifting Capacity	5 Ton	1–10 Ton
Crane Span	10 M	5–30 M
Lifting Height	7 M	3–20 M
Lifting Speed	1/9 m/min (2-speed)	0.5–15 m/min (VFD)
Bridge Travel Speed	25 m/min	10–45 m/min
Trolley Traverse Speed	18 m/min	8–30 m/min
Work Duty Class	FEM A3 / ISO M4	A3–A5 / M3–M5
Power Supply	380V/50Hz/3P	220/400/440V, 50/60Hz
Electrical Protection	IP54	IP55/IP65 (custom)
Operating Temp	-15°C ~ +45°C	-30°C ~ +55°C (custom)

 

 

Every RAYVANBO crane is built with a multi-layer safety system to meet global lifting standards:

Smart Overload Protection: The load sensor triggers an automatic shutdown when the load exceeds 110% of the rated capacity, with an audible alarm to alert operators.

Multi-Point Limit Switches: Lifting height limits (upper/lower) and runway travel limits prevent over-travel and collisions with building structures.

Redundant Emergency Stops: Emergency stop buttons are placed on the pendant, remote control, and control panel, ensuring instant shutdown from any position.

Anti-Collision Sensors (Optional): Laser sensors detect nearby obstacles, automatically slowing the crane to 50% speed and stopping if a collision is imminent.

Power Failure Protection: A battery-backed brake system locks the hoist and bridge in place during power outages, preventing load drops.

 

 

This versatile crane is tailored for indoor industrial environments, excelling in:

🏭 Automotive Manufacturing

Lifting engine blocks, chassis components, and assembled parts on production lines-precision control minimizes damage to delicate components.

📦 Bulk Warehousing

Moving steel coils, palletized goods, and heavy containers in raw material warehouses, with customizable spreader beams for odd-shaped loads.

⚙️ Machinery Repair Shops

Hoisting large gearboxes, motors, and machine tools during maintenance and overhaul work, with slow-speed lifting for safe positioning.

🛠️ Metal Fabrication Plants

Handling steel plates, pipes, and welded assemblies in steel mills and fabrication shops-heat-resistant hoist options available for high-temperature zones.

 

 

Installation & Setup

We provide end-to-end installation support to get your crane operational quickly:

Factory Pre-Assembly

70% of the crane is pre-assembled in our factory, with laser alignment marks for on-site assembly-cutting installation time to just 4 days for a 5-ton model.

On-Site Technical Support

Our certified technicians travel to your location to oversee runway alignment, crane mounting, and electrical wiring, ensuring compliance with local safety codes.

Operator & Maintenance Training

Free on-site training covers safe operation, daily inspections, and basic maintenance (e.g., wire rope inspection, brake adjustment), empowering your team to manage the crane independently.

Post-Installation Testing

We conduct a full load test (125% of rated capacity) and performance inspection, providing a signed certification of compliance for your records.

Packaging & Delivery

We ensure safe, on-time delivery to your global location with robust packaging and flexible logistics:

Industrial-Grade Packaging

Girder & End Carriages: Wrapped in waterproof PE tarpaulin and secured to steel-reinforced wooden skids to prevent bending.

Hoist & Electronics: Packed in foam-lined steel crates with moisture-absorbing desiccants to protect against humidity.

Spare Parts Kit: Labeled plastic cases with critical wear parts (wire rope, brake pads, bearings) for quick replacement.

Lead Time & Shipping

Standard Lead Time: 20–28 days for off-the-shelf models; 35–45 days for custom designs.

Shipping Terms: EXW, FOB (Qingdao/Shanghai), CIF, and DDP are all supported-we handle customs clearance for global delivery.

Global Logistics: Partner with Maersk (sea) and DHL (air) for fast delivery to Europe, North America, Southeast Asia, and the Middle East.

 

Customization Capabilities

We offer fully tailored solutions to match your unique workshop requirements:

Core Parameter Customization

Adjust lifting capacity (1–10 ton), span (5–30 m), and lifting height (3–20 m) to fit your factory's dimensions and load needs.

Structural Customization

Low-Headroom Hoists: For workshops with limited vertical space (increases lifting height by 20%).

Double-Girder Upgrade: For heavy loads (10–50 ton) or high-duty cycles (FEM A5).

Explosion-Proof Design: For chemical/petrochemical workshops (ATEX certified).

Functional Customization

Add electromagnetic suckers (for steel materials), grab buckets (for bulk goods), or IoT monitoring (real-time performance tracking via cloud).

Aesthetic Customization

Custom paint colors (matching your corporate brand) and laser-engraved logos for a professional, branded look.

 

Q1: Can this crane be installed on an existing runway?

A: Yes-we customize the end carriage wheels and connection plates to match your existing runway beam size (I-beam/H-beam). Our team will review your runway drawings to confirm compatibility before production.

 

Q2: What maintenance is required for the crane?

A: Daily checks include inspecting wire rope wear and brake performance; monthly maintenance involves lubricating wheel bearings and checking electrical connections. We provide a detailed maintenance schedule and 24/7 technical support.

 

Q3: What is the maximum span you can customize?

A: We design cranes with spans up to 30 m for single-girder models; for spans over 30 m, we recommend a double-girder configuration for enhanced stability.

 

Q4: Do you provide spare parts after the warranty?

A: Yes-we keep a global inventory of standard parts (wire rope, motors, brakes) and offer fast delivery (3–7 days for EU/USA, 7–10 days for Asia). Custom parts are manufactured within 15 days.

 

Q5: What is the warranty coverage?

A: We offer a 12-month warranty for the entire crane and an 18-month warranty for core components (hoist, motor, gearbox). We replace defective parts free of charge and provide on-site repair support if needed.

 

Q6: Can the crane be operated by multiple users?

A: Yes-the remote control can be programmed with multiple user codes, and we offer keycard access systems for restricted operation (optional).

 

Customization Inquiry

Share your workshop's dimensions, load requirements, and operational needs, and our engineering team will design a tailored overhead bridge crane solution-including a 3D model and detailed quotation-within 24 hours.

 

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