2-Apr-2025

30 Ton Gantry Crane

Comprehensive Guide to 30 Ton Gantry Cranes

Dongqi Crane specializes in manufacturing high-quality 30 ton gantry cranes for heavy industrial applications. With CE and ISO certification, our cranes combine robust construction, precision engineering, and competitive pricing.

30 ton gantry cranes represent heavy-duty lifting solutions designed for industrial applications requiring precise handling of massive loads. These robust systems consist of a horizontal beam (girder) supported by vertical legs that move along rails or wheels, offering superior versatility compared to overhead bridge cranes in outdoor or large-span applications.

Key Advantages:

Unmatched Load Capacity: Handles 30 metric tons (33 US tons) with 25% safety margin
Adaptable Configurations: Customizable spans (15-35m) and heights (8-30m)
Site Flexibility: Suitable for both indoor factories and outdoor yards
Operational Efficiency: Reduces manual labor by 70% in heavy material handling

Types of 30 Ton Gantry Cranes & Applications

Introduction to 30 Ton Gantry Crane Variants

When selecting a 30 ton gantry crane, understanding the different types and their specialized applications is crucial for optimal performance and safety. These heavy-duty lifting systems vary significantly in their structural design and operational capabilities, each engineered to meet specific industrial demands. Below we explore the technical specifications and real-world applications of each type, helping you identify the ideal solution for your material handling requirements.

1. Single Girder Gantry Cranes

Technical Specifications

Transitioning from basic design principles to practical implementation, single girder models offer a cost-effective solution for medium-duty applications. Their streamlined structure features:

Structural Design:
Single box girder (1.2-1.8m width) with optimized weight distribution
Progressive leg inclination at 1:10 ratio for enhanced stability
Flexible wheel configuration with 4-wheel or 8-wheel options

Industrial Applications

Moving beyond specifications to real-world utilization, these cranes excel in:

Manufacturing Plants

Typical Use: Heavy press machine installation where precision matters
Configuration Highlights:
- 18m span provides generous work envelope
- 12m lifting height accommodates tall components
- Variable frequency drive ensures smooth load control

Warehouse Operations

Special Features:
- Low headroom design maximizes vertical space utilization
- Advanced anti-sway control protects delicate loads
- Adjustable trolley speed (5-20m/min) for operational flexibility

2. Double Girder Gantry Cranes

Technical Specifications

Building upon single girder designs, double girder models deliver superior performance through:

Structural Enhancements:
Twin parallel girders (1.8-2.5m center distance) for increased rigidity
Reinforced end trucks with heavy-duty wheel assemblies
Expanded 8-16 wheel configurations for extreme loads

Heavy Industry Applications

Transitioning to demanding environments:

Steel Mills

Critical Features:
- Special heat-resistant coatings withstand 200°C temperatures
- Integrated ladle turning mechanism for molten metal handling
- Engineered for 50,000+ service cycles of continuous operation

Power Generation

Special Configurations:
- Customized for turbine rotor handling precision
- Seismic reinforcement for critical infrastructure
- Nuclear-grade components meeting stringent safety standards

3. Rubber-Tired Gantry (RTG) Cranes

Technical Specifications

Bridging the gap between fixed and mobile solutions:

Mobility System:
4-8 heavy-duty pneumatic tires for all-terrain capability
5-10° gradeability conquers uneven surfaces
Advanced 90° crab or 360° full circle steering options

Port & Yard Applications

Transitioning to dynamic environments:

Container Terminals

Throughput Optimization:
- Millimeter-accurate GPS positioning (±50mm)
- Automatic twistlocks for rapid container handling
- 25 cycles/hour operational capacity

4. Specialized Variants

4.1 Explosion-Proof Models

Transitioning to hazardous environments:

Certifications: ATEX Zone 1/2 compliant designs
Key Safety Components:
Intrinsically safe control systems
Non-sparking aluminum bronze contact surfaces
Pressurized electrical cabinets preventing gas ingress

4.2 Low-Temperature Cranes

Adapting to extreme climates:

Arctic Specifications:
Reliable operation down to -50°C
Special cold-resistant lubricants that maintain viscosity
Comprehensive heating systems for critical components

Selection Guide by Industry

To help visualize the transition from specifications to practical selection:

Industry	Recommended Type	Transition Rationale
Automotive	Single Girder	Balances precision with cost efficiency
Mining	Double Girder	Handles extreme duty cycles
Offshore	RTG	Adapts to corrosive marine environments

Conclusion: Matching Crane to Application

Understanding these transitional factors between crane types and their operational environments ensures optimal selection. For complex applications, Dongqi’s engineering team provides:

Bespoke Transition Solutions:
Custom spans bridging standard and special requirements
Hybrid systems combining multiple crane features
Phased upgrades for evolving operational needs

All designs incorporate progressive safety factors meeting international ISO, FEM, and CMAA standards

Technical Specifications Comparison

Parameter	Single Girder	Double Girder	Rubber-Tired
Span Range	15-30m	18-35m	20-35m
Lifting Height	10-22m	12-30m	8-25m
Work Duty	A3-A5	A5-A7	A6-A8
Hoisting Speed	0.8-8 m/min	0.5-10 m/min	0.5-12 m/min
Travel Speed	20 m/min	30 m/min	15 m/min
Control System	Pendant/Remote	Pendant/Remote	Radio Remote
Power Supply	380V/50Hz	380V/50Hz	Diesel/Electric