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!