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1-Apr-2025
20 Ton Overhead Crane
Introduction to 20 Ton Overhead Cranes
A 20 ton overhead crane (also called a 20 ton EOT crane) is a heavy-duty lifting solution for industrial applications requiring robust material handling capabilities. These cranes are essential for:
✔ Steel mills and foundries
✔ Heavy equipment manufacturing
✔ Power generation plants
✔ Shipbuilding yards
✔ Large-scale construction projects
Dongqi Crane, a leading global manufacturer, offers high-quality 20 ton overhead cranes for sale with competitive pricing and customized configurations. This guide covers:
- Types of 20 ton overhead cranes
- 20 ton overhead crane price factors
- Key features & benefits
- Where to buy 20 ton EOT cranes
1. Types of 20 Ton Overhead Cranes
Dongqi Crane manufactures a comprehensive range of 20-ton overhead cranes designed for various industrial applications. Below is a detailed technical breakdown of each crane type to help you make an informed selection.
A. Single Girder 20 Ton Overhead Crane
Structural Configuration:
- Main girder: Welded box-section construction (Q235B/Q345B steel)
- End carriages: Double-girder design for enhanced stability
- Wheel configuration: 4-wheel (standard), 8-wheel (for spans >25m)
Technical Parameters:
| Specification | Value Range |
|---|---|
| Span | 7.5m – 30m |
| Lifting height | 6m – 30m (standard), up to 50m (custom) |
| Work duty | A3-A5 (FEM 1Am-3m) |
| Hoisting speed | 3.5-7 m/min (variable frequency control) |
| Travel speed | 20-30 m/min (cross travel), 30-45 m/min (long travel) |
| Power supply | 3-phase, 380V/415V/480V, 50/60Hz |
Key Features:
- Compact design saves up to 30% headroom compared to double girder
- Modular construction allows for easy field assembly
- Energy-efficient (15-20% lower power consumption than double girder)
- Cost-effective solution for medium-duty applications
Best Applications:
- Manufacturing workshops
- Warehouse material handling
- Maintenance bays
- Light assembly operations
B. Double Girder 20 Ton EOT Crane
Structural Configuration:
- Twin box girders with reinforced diaphragms (16-22mm steel plate)
- Heavy-duty end trucks with 8 or 16 wheels
- Centralized trolley with dual-redundant braking
Technical Parameters:
| Specification | Value Range |
|---|---|
| Span | 10.5m – 35m+ |
| Lifting height | Up to 50m (special designs available) |
| Work duty | A5-A7 (FEM 2m-4m) |
| Hoisting speed | 0.8-8 m/min (precision VFD control) |
| Travel speed | 5-32 m/min (variable speed) |
| Control system | PLC-based with CAN bus communication |
Key Features:
- High stability (max deflection ≤1/1000 of span)
- Precision positioning (±5mm accuracy)
- Heavy-duty cycle (up to 80% ED)
- Future upgrade capability (up to 25T capacity)
Best Applications:
- Steel mills
- Heavy fabrication
- Power plants
- Shipbuilding yards
C. European Standard 20 Ton Overhead Crane
Design Characteristics:
- FEM 9.511/9.681 compliant design
- Low headroom construction
- Modular components for easy maintenance
Technical Parameters:
| Specification | Value Range |
|---|---|
| Span | 5m – 28m |
| Lifting height | 3m – 30m |
| Work duty | A3-A6 |
| Noise level | <75dB at 1m distance |
| Protection class | IP55 (standard), IP65 (optional) |
Key Features:
- Space-saving design (20-30% lower building height)
- Smooth operation (class-leading acceleration control)
- Low maintenance (lubricated-for-life components)
- Energy recovery system (regenerative braking)
Best Applications:
- Clean room environments
- Food processing
- Pharmaceutical facilities
- Precision manufacturing
D. Explosion-Proof 20 Ton Overhead Crane
Safety Features:
- ATEX/IECEx certified components
- Spark-resistant materials (copper-free alloys)
- Static dissipation system (<1MΩ resistance)
Technical Parameters:
| Specification | Value Range |
|---|---|
| Temperature class | T1-T6 |
| Gas group | IIA/IIB/IIC |
- Zone classification | 1/21 or 2/22 |
| Protection type | Ex d, Ex e, Ex ib |
Key Features:
- Hazardous area compliance
- Corrosion-resistant (C5-M coating)
- Fail-safe control system
- Remote monitoring capability
Best Applications:
- Oil refineries
- Chemical plants
- Grain processing
- Paint spray booths
E. Special Application 20 Ton Cranes
1. Foundry Cranes
- Heat-resistant up to 200°C
- Dust-proof hoist mechanism
- Reinforced insulation for controls
2. Magnet/Grab Cranes
- Auxiliary hoist for handling devices
- Special power supply systems
- Load sway control
3. Automated Cranes
- PLC control with HMI
- Positioning accuracy ±2mm
- RFID load identification
Selection Guide:
- Determine duty cycle (A3-A7 classification)
- Measure workspace (span, height, obstacles)
- Identify special requirements (clean room, explosive, etc.)
- Consider future needs (expansion, automation)
Customization Options:
- Special paint systems (epoxy, zinc-rich)
- Additional safety devices (anti-sway, overload)
- Smart features (remote diagnostics, IoT)
- Capacity upgrades (up to 25T)
2. 20 Ton Overhead Crane Price Breakdown
A. Structural Components Cost (40-55% of Total Price)
1. Main Bridge Structure
- Single girder: $8,000-$18,000
- Standard span (≤25m): $350/m
- Long span (>25m): $500-$700/m (+40-60%)
- Double girder: $15,000-$35,000
- Standard span (≤25m): $700/m
- Long span (>25m): $900-$1,200/m (+30-50%)
2. End Carriages & Runway System
- Standard end trucks: $3,500-$6,000/pair
- Heavy-duty (16 wheels): $7,000-$12,000/pair
- Runway beams: $80-$200/m (installed)
- Additional for seismic reinforcement: +15-20%
B. Hoisting Mechanism (25-35% of Total Price)
1. Electric Wire Rope Hoist
- Standard 20t (A5 duty): $12,000-$25,000
- 15m lifting height included
- Each additional 5m: +$1,500
- Heavy-duty (A7): $18,000-$35,000
- Dual-speed control: +$3,000
- Explosion-proof: +40-60%
2. Chain Hoist Options
- Air chain hoist: $8,000-$15,000
- Manual chain hoist: $3,000-$6,000
C. Electrical Systems (15-25% of Total Price)
1. Control Systems
- Pendant control: $1,500-$3,000
- Radio remote: $3,000-$6,000
- Explosion-proof remote: +$2,000
- Cabin control: $8,000-$15,000
- AC/heat: +$1,500
- Panoramic glass: +$2,000
2. Power Delivery
- Festoon system: $50-$100/m
- Cable reels: $2,000-$5,000
- Busbar system: $150-$300/m
D. Safety & Special Features (5-15% of Total Price)
1. Standard Safety Package ($2,000-$5,000)
- Overload limiter
- Upper/lower limit switches
- Emergency stop
- Phase protection
2. Advanced Options
- Anti-collision system: $3,000-$8,000
- Load moment indicator: $2,500-$5,000
- Automated positioning: $5,000-$15,000
- Seismic protection: +8-12% of structural cost
E. Installation & Commissioning (10-20% of Equipment Cost)
1. Standard Installation
- Foundation preparation: $3,000-$8,000
- Mechanical assembly: $5,000-$15,000
- Electrical connection: $2,000-$6,000
- Load testing: $1,000-$3,000
2. Special Installation Requirements
- High-altitude (>15m): +30-50%
- Confined space: +20-40%
- Hazardous area: +50-100%
F. Regional Price Variations (Base Price ±15-30%)
| Region | Price Adjustment Factors |
|---|---|
| North America | +15-20% (UL certification) |
| Europe | +10-15% (CE compliance) |
| Middle East | +5-10% (desert package) |
| Southeast Asia | -5-10% (local production) |
G. Maintenance Cost Projections
1. Annual Maintenance Costs
- Preventive maintenance: $2,000-$5,000/year
- Spare parts: 2-3% of initial cost/year
- Energy consumption: $1,500-$4,000/year
2. Major Service Intervals
- Year 5: 5-8% of initial cost
- Year 10: 15-20% of initial cost
- Year 15: 25-35% of initial cost
H. Price Comparison Table
| Component | Single Girder Range | Double Girder Range |
|---|---|---|
| Basic Structure | $25,000-$45,000 | $40,000-$80,000 |
| Standard Hoist | $12,000-$25,000 | $15,000-$30,000 |
| Control System | $1,500-$15,000 | $3,000-$20,000 |
| Installation | $5,000-$15,000 | $8,000-$25,000 |
| Total | $43,500-$100,000 | $66,000-$155,000 |
I. Cost-Saving Strategies
- Design Optimization
- Right-sizing spans (save $300-$500/m)
- Optimal lifting height selection
- Standard duty class selection
- Procurement Advantages
- Off-season purchase (5-8% discount)
- Batch ordering (10-15% discount for 3+ units)
- Local content utilization (7-12% savings)
- Long-Term Value
- Energy-efficient drives (15-20% power savings)
- Predictive maintenance systems
- OEM spare parts packages
This detailed price breakdown enables accurate budgeting for 20-ton overhead crane projects. Dongqi Crane provides transparent, itemized quotations with lifecycle cost analysis to help customers make informed investment decisions. Our engineers can recommend specific cost optimization measures without compromising quality or safety standards.
3. Why Choose Dongqi 20 Ton Overhead Cranes?
A. Superior Engineering Features
- Heavy-Duty Construction
- Reinforced box girders (FEM/ISO certified)
- 125% overload testing capability
- Advanced Safety Systems
- Dual braking system
- Anti-collision sensors
- Load moment indicator (LMI)
B. Customization Options
✔ Span: 10m – 35m+
✔ Lifting Height: Up to 50m
✔ Control: Pendant / Radio Remote / Cabin
✔ Special Coatings: C5-M corrosion protection
C. Global Certifications
- CE, ISO 9001, GOST, ASME B30.2
- Compliant with OSHA and ANSI standards
4. 20 Ton Overhead Crane for Sale – Purchasing Process
Step-by-Step Ordering
- Consultation – Discuss requirements with engineers
- Quotation – Get a detailed price breakdown within 24h
- Custom Design – 3D modeling & load simulations
- Production – 8-12 weeks (standard models)
- Delivery & Installation – Global logistics support
5. After-Sales Support & Maintenance
Comprehensive Service Package
- Installation Supervision
- Operator Training
- Preventive Maintenance Plans
- 24/7 Technical Support
Spare Parts Availability
- Guaranteed 10-year parts supply
- Emergency shipment within 72h
Conclusion – Best Value 20 Ton EOT Cranes
Dongqi Crane provides high-performance 20 ton overhead cranes at competitive prices, with:
✅ Direct factory pricing (no middlemen)
✅ Custom engineering solutions
✅ Global project experience (80+ countries)
Contact Dongqi Today for Your 20 Ton Crane Needs!
📞 +86 18638815424
📧 sales010@cranesdq.com
🌐 https://uz.craneyt.com/
Frequently Asked Questions
Q: What is the lead time for a 20 ton EOT crane?
A: Standard models: 8-12 weeks | Custom designs: 12-16 weeks
Q: Do you provide installation services worldwide?
A: Yes, we have certified teams in North America, Europe, Middle East & Asia
Q: What’s included in the base price?
A: Crane structure, hoist, controls, and standard safety devices
Q: Can I upgrade capacity later?
A: Yes, most designs allow 25% capacity increase with structural reinforcements
Q: How often does a 20 ton crane need maintenance?
A: Monthly inspections + annual comprehensive maintenance recommended
This comprehensive guide covers all aspects of purchasing a 20 ton overhead crane from Dongqi – a trusted manufacturer with 30+ years of industry experience. Get your customized quote today!
