European Double Beam Overhead Crane

Key Features of European Double Beam Overhead Cranes

1. Robust Construction

Heavy-duty welded steel girders (typically box-type design) for maximum strength.

High-grade materials (S355JR steel) resistant to heat and corrosion.

Modular design for easy customization.

2. High Load Capacity & Long Span

Capacity: 5 tons to 600+ tons (customizable for steel mill applications).

Span: Up to 40 meters (can be extended for large workshops).

3. Advanced Hoisting Mechanism

Low Headroom Hoist – Saves vertical space.

Explosion-Proof Motors – For hazardous areas (e.g., near furnaces).

Variable Frequency Drive (VFD) – Ensures smooth acceleration/deceleration.

4. Precision Control & Automation

Radio remote control (safe operation in high-heat zones).

PLC & Smart Automation – For Industry 4.0 integration.

Anti-Sway Technology – Critical for handling steel coils and ladles.

5. Safety & Compliance

FEM 1.001 / DIN 15018 standards for structural integrity.

Overload protection, emergency stop, and limit switches.

IP55 / IP65 protection for motors and electrical components.

6. Specialized Attachments for Steel Industry

C-hooks – For steel coil handling.

Electromagnets – For sheets and scrap.

Ladle hooks – For molten metal transport.

 

Advantages Over Conventional Cranes

Feature	European Double Girder Crane	Standard Crane
Design Standards	FEM, DIN, ISO certified	General industry standards
Lifting Smoothness	VFD-controlled, minimal jerk	Basic motor control
Durability	High-grade steel, heat-resistant	Standard materials
Safety Features	Redundant brakes, anti-sway	Basic safety systems
Customization	Modular design, flexible options	Limited modifications

 

Core Components：Bearing, Gearbox, Motor, Pump

Place of Origin：Henan, China

Warranty：1 Year

Weight (KG)：2000 kg

Video outgoing-inspection：Provided

Machinery Test Report：Provided

Design：Double beam

Effectiveness：high efficiency

Operating speed：High speed operation

Stability：Anti-swing function

Color：Optional

Power Source：110V/220V/230V/380V/440V,customized

Span：7.5-31.5m

European double girder overhead cranes are engineered for precision, durability, and safety, especially in demanding steel factory environments. Below is a detailed breakdown of their key components:

 

1. Bridge Structure

Main Girders (Double Beam)

Box-type welded steel girders (S355JR or similar high-strength steel).

FEM/DIN-compliant design for optimal load distribution.

Modular construction for easy assembly and maintenance.

End Carriages (End Trucks)

Heavy-duty wheels (forged steel, often with double-flange design).

Buffers & bumpers (shock absorption).

Drive units (AC/DC motors with VFD control).

 

2. Hoisting Mechanism

Electric Wire Rope Hoist

Low headroom design (saves vertical space).

Dual-speed lifting (precision control for delicate loads).

Explosion-proof option (for hazardous zones).

Trolley Assembly

Motorized travel system (smooth movement along the girder).

Anti-sway technology (for stable steel coil/ladle handling).

3. Runway System

Runway Beams

Steel I-beams or box girders (bolted or welded to support columns).

Adjustable leveling pads for precise alignment.

Crane Rails

European standard rails (A45, A55, A65, A100, A120).

QU80/QU100/QU120 rails for heavy-duty applications.

 

4. Drive & Motion System

Travel Motors

AC motors with VFD control (smooth acceleration/deceleration).

Brake motors (fail-safe braking).

Gearboxes

Helical or bevel gear reducers (high efficiency, low noise).

Wheels & Bearings

Forged steel wheels (heat-treated for durability).

Tapered roller bearings (long service life).

5. Electrical & Control System

Power Supply

Festoon system (for power and signal transmission).

Cable reels (for long-travel applications).

Control Panel

PLC-based control (for automation).

Overload limiter & emergency stop.

Operator Interface

Pendant control (IP65-rated for harsh environments).

Radio remote control (safe operation in hazardous zones).

6. Safety & Protection Systems

Overload protection (prevents crane operation beyond capacity).

Limit switches (prevents over-travel).

Anti-collision system (for multiple cranes in same runway).

Emergency stop buttons (at multiple access points).

Heat & spark-resistant coatings (for foundry applications).

7. Specialized Attachments for Steel Industry

C-hooks (for steel coils).

Electromagnets (for sheets & scrap).

Ladle hooks (for molten metal handling).

Grab buckets (for bulk materials).

Sketch

Main technical

 

 

Superior Structural Integrity

Fabricated from high-grade S355JR steel with FEM/DIN-compliant box girder design

20-30% stronger than conventional designs with optimized weight distribution

Precision Handling Capabilities

Dual-speed hoisting (1:10 ratio) for delicate positioning of steel coils/ladles

Anti-sway systems reduce load swing to <1° during high-speed transfers

Enhanced Safety Systems

Triple braking system: service brake + emergency brake + mechanical backup

IP65-rated components withstand foundry conditions (dust, heat, moisture)

Smart Automation Features

Industry 4.0 ready with PLC control and IoT connectivity

Automated positioning (±5mm accuracy) for repetitive operations

Energy Efficiency

Regenerative VFDs recover up to 25% of braking energy

LED lighting systems reduce power consumption by 40%

 

Critical Steel Plant Applications

Application	Special Features	Typical Capacity
Ladle Handling	Explosion-proof hoist, dual-hook safety system	80-500 tons
Coil Transfer	C-hook adapters, anti-rotation system	10-50 tons
Slab Yard Operations	Heavy-duty trolley (FEM 3m class)	100-600 tons
Scrap Processing	Electromagnetic/hydraulic grab options	5-30 tons
Rolling Mill Service	Heat-resistant coatings (up to 150°C)	20-200 tons

 

The production procedure for a 45-ton Double Girder Overhead Crane involves several key stages, from design to final testing. Below is a detailed step-by-step overview:

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1. Design & Engineering

Load & Span Calculation: Determine crane capacity (45 tons), span (distance between rails), lifting height, and duty cycle (FEM/ISO classification).

Structural Design:

Main girders (box-type or truss design)

End carriages (for movement along rails)

Hoist and trolley mechanism

Electrical & Mechanical Design:

Motor power, gearbox, brakes, and control system

Wiring, pendant/radio remote control, or cabin operation

Software & Simulation: Finite Element Analysis (FEA) for stress testing.

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2. Material Procurement

Steel Plates & Profiles: High-quality Q235B/Q345B steel for girders.

Electrical Components: Motors (hoist/travel), brakes, limit switches, and control panels.

Mechanical Parts: Wheels, gears, wire ropes, hooks, and bearings.

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3. Fabrication of Main Components

A. Double Girder Fabrication

Cutting & Welding: CNC plasma cutting for precision; automatic submerged arc welding (SAW) for girders.

Assembly: Align and weld girders with end carriages.

Shot Blasting & Painting: Anti-rust treatment (primer + topcoat).

B. Hoist & Trolley Assembly

Hoist Mechanism:

45-ton electric wire rope hoist (or chain hoist).

Drum, motor, gearbox, and brake assembly.

Trolley Frame: Fabrication and mounting of wheels, motors, and rails.

C. End Carriages

Frame Construction: Welded steel with wheel assemblies.

Buffers & Bumpers: Installation for collision protection.

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4. Electrical System Installation

Wiring & Controls:

Power supply (3-phase AC)

Variable Frequency Drives (VFDs) for smooth operation

Pendant/remote control system

Safety Devices:

Overload limiter

Limit switches (upper/lower travel)

Emergency stop

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5. Assembly & Integration

Erection of Girders: Mount double girders onto end carriages.

Trolley & Hoist Installation: Position trolley between girders; secure hoist.

Rail Alignment: Ensure runway rails are level and parallel.

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6. Testing & Quality Control

A. Factory Testing (Before Shipment)

No-Load Test: Run crane without load to check movement, brakes, and controls.

Load Test:

Static Test: 1.25 × rated load (56.25 tons) for 10 mins.

Dynamic Test: 1.1 × rated load (49.5 tons) with movements.

Safety Checks: Verify limit switches, emergency stop, and overload protection.

B. On-Site Testing (After Installation)

Re-run load tests under customer supervision.

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7. Painting & Corrosion Protection

Final Coating: Weather-resistant paint (e.g., epoxy zinc-rich primer).

Markings: Labels for load capacity, warnings, and manufacturer info.

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8. Packaging & Delivery

Disassembly (if needed): For easy transport.

Packaging: Waterproof wrapping for sea/land shipping.

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9. Installation & Commissioning (On-Site)

Runway Beam Inspection: Ensure proper alignment and strength.

Crane Assembly: Reassemble girders, hoist, and electrical systems.

Final Testing: Conduct load tests and operator training.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.