28-Mar-2025
20 Ton Overhead Crane
Introduction
As industrial operations scale up, the demand for reliable heavy-duty lifting equipment grows. Dongqi Crane specializes in manufacturing high-performance 20 ton overhead cranes that combine robust construction with intelligent operation features. This guide explores our comprehensive product range, competitive pricing structure, and value-added services that set us apart in the material handling industry.
1. Engineered for Heavy-Duty Performance – Technical Specifications
Dongqi’s 20-ton overhead cranes are precision-engineered for demanding industrial applications, featuring cutting-edge technologies that ensure reliability, safety, and operational efficiency. Below is a detailed technical breakdown of our heavy-duty crane systems:
A. Structural Engineering Excellence
1. Girder Systems:
- Single Girder Construction:
- Material: Q345B high-tensile steel (16-22mm thickness)
- Box-type welded structure with internal stiffeners
- Maximum deflection: ≤ Span/800 (FEM 1.001 standard)
- Standard span range: 7.5m-30m (extendable to 35m)
- Double Girder Construction:
- Twin welded box girders with reinforced diaphragms
- Material: Q345B+ steel (18-25mm thickness)
- Maximum deflection: ≤ Span/1000 (FEM 1.002 standard)
- Standard span range: 10.5m-35m (extendable to 40m)
2. End Carriages:
- 8-wheel or 16-wheel configurations
- Forged steel wheels (ZG340-640 material)
- Double-rail design for heavy loads
- Anti-derailment safety devices
B. Hoisting Mechanism Specifications
1. Wire Rope Hoist (Standard):
| Parameter | Specification |
|---|---|
| Capacity | 20 ton (200kN) |
| Rope Diameter | 18-22mm (6x36WS+IWR) |
| Drum Capacity | 300-600m (depending on height) |
| Braking System | Dual electromagnetic brakes |
| Motor Power | 18.5-30kW (S1 duty) |
| Speed Control | Variable Frequency Drive (VFD) |
2. Chain Hoist (Optional):
- Grade 100 alloy steel load chain
- 2/1 fall arrangement
- Thermal protection system
- Manual or pneumatic options
C. Drive & Control Systems
1. Travel Mechanism:
- Cross travel speed: 20-32 m/min
- Long travel speed: 32-45 m/min
- AC 3-phase induction motors (IP55 protection)
- Frequency inverter control (0-100% speed adjustment)
2. Advanced Control Options:
- Standard: Pendant control (IP65 rated)
- Premium:
- Radio remote (2.4GHz FHSS technology)
- CAN bus communication system
- PLC-based smart control
- Custom:
- Automated positioning (±2mm accuracy)
- Collision avoidance system
- Load sway control
D. Safety & Protection Systems
1. Standard Safety Package:
- Overload limiter (110% cut-off)
- Upper/lower limit switches
- Emergency stop circuit
- Phase failure protection
- Voltage protection (380V±10%)
2. Advanced Protection:
- Real-time load monitoring (±1% accuracy)
- Anti-sway control (for precise positioning)
- Seismic locking mechanism (for Zone 3/4 areas)
- Spark-proof design (for hazardous areas)
E. Environmental Adaptability
1. Standard Models:
- Operating temperature: -20°C to +40°C
- Humidity: ≤95% RH (non-condensing)
- Altitude: ≤1000m (derating above)
2. Special Environment Options:
| Condition | Adaptation Features |
|---|---|
| High Temp | Heat-resistant coatings (up to 200°C) |
| Corrosive | C5-M protection coating |
| Explosive | ATEX/IECEx certified components |
| Arctic | -40°C cold-start package |
F. Performance Testing & Certification
1. Factory Testing:
- 125% static load test (1 hour)
- 110% dynamic load test (10 cycles)
- Noise level test (<75dB at 1m)
- Vibration analysis (ISO 10816-3)
2. Certifications:
- CE (EN 13001, EN 60204)
- ISO 9001:2015
- GOST (Russia)
- ASME B30.2 (USA)
G. Maintenance & Serviceability
1. Access Features:
- Modular design for easy component replacement
- Centralized lubrication points
- Quick-disconnect electrical connections
- RFID-tagged major components
2. Maintenance Intervals:
| Component | Inspection Frequency | Service Life |
|---|---|---|
| Wire Rope | Weekly | 3-5 years |
| Brakes | Monthly | 5-7 years |
| Gears | 6 months | 10+ years |
| Structure | Annual | 20+ years |
Dongqi’s 20-ton overhead cranes represent the pinnacle of heavy-duty lifting technology, combining robust construction with intelligent control systems. Our engineering team can customize any parameter to match your specific operational requirements while maintaining the highest safety standards. Each crane undergoes rigorous quality control procedures to ensure reliable performance throughout its service life.
Transparent & Competitive Pricing for 20-Ton Overhead Cranes
At Dongqi Crane, we believe premium lifting equipment should be accessible to all industrial operations. Our innovative pricing model delivers exceptional value without compromising quality or performance.
Customized Pricing Framework
1. Base Configuration Options
| Model Type | Starting Price | Key Features Included |
|---|---|---|
| Standard Single Girder | $42,800 | 20-ton capacity, 18m span, pendant control |
| Heavy-Duty Double Girder | $68,500 | 25m span, radio remote, VFD controls |
| European Low-Headroom | $75,200 | Compact design, energy recovery system |
| Explosion-Proof | $128,000 | ATEX certification, spark-proof components |
2. Modular Pricing Components
Structural Elements:
- Base girder structure: $280-$420 per ton of steel
- Additional span length: $850-$1,150 per meter beyond 18m
- Special coatings (C4/C5): +12-18% of structural cost
Operational Systems:
- Standard hoist mechanism: $22,000-$35,000
- Premium VFD control package: +$7,200
- Automated positioning system: +$14,500
- IoT monitoring capability: +$6,800
3. Smart Cost Optimization
We help you reduce total ownership costs through:
- Energy Efficiency Packages (save 15-22% on power)
- Maintenance-Ready Designs (cut service costs by 30%)
- Future-Proof Configurations (easy capacity upgrades)
Value-Added Services Included
All our quotes include:
✓ Professional site assessment
✓ 3D load simulation
✓ Installation planning
✓ Operator training manuals
✓ 24-month comprehensive warranty
Special Programs for Different Buyers
For Project Contractors:
- Expedited production options
- On-site technical support
- Spare parts kits included
For International Buyers:
- CIF pricing available
- Local compliance certification support
- Multilingual documentation
Transparent Quote Breakdown
Every proposal details:
- Material specifications
- Labor components
- Testing protocols
- Delivery terms
- After-sales support
Request your customized quote today and discover how our 20-ton overhead cranes deliver superior value at competitive prices. Our engineering team will optimize the configuration to meet both your operational needs and budget requirements.
5. Total Cost of Ownership Advantages: Maximizing Value Across the Crane Lifecycle
A Smarter Investment for Long-Term Efficiency
Purchasing a 20-ton overhead crane is a significant capital investment, but Dongqi Crane ensures lower total cost of ownership (TCO) through superior engineering, energy efficiency, and lifecycle support.
1. Reduced Energy Consumption (Up to 25% Savings)
- Regenerative Braking System – Recovers energy during lowering and braking
- High-Efficiency Motors (IE4/IE5 Class) – Lower power draw without sacrificing performance
- Variable Frequency Drives (VFDs) – Optimize speed and reduce wasted energy
- LED Crane Lighting – 60% less power than traditional halogen
Estimated Annual Savings:
| Operation Profile | Standard Crane | Dongqi Efficient Model | Yearly Savings |
|---|---|---|---|
| 2,000 hours/year | $5,200 | $3,900 | $1,300 |
| 4,000 hours/year | $10,400 | $7,800 | $2,600 |
2. Extended Equipment Lifespan (20+ Years with Proper Maintenance)
- High-Grade Steel Construction – Resists fatigue and deformation
- Sealed & Lubricated-for-Life Components – Minimize wear on gears and bearings
- Corrosion-Resistant Coatings (C4/C5) – Protect against harsh environments
- Modular Design – Easy component replacement without full rebuilds
3. Lower Maintenance Costs (30-50% Reduction vs. Competitors)
- Predictive Maintenance Sensors – Detect issues before failure
- Standardized OEM Spare Parts – No costly custom machining
- Remote Diagnostics – Faster troubleshooting, fewer service calls
- Automated Lubrication Systems – Extend bearing and gear life
Maintenance Cost Comparison (Annual):
| Component | Competitor Avg. | Dongqi Crane | Savings |
|---|---|---|---|
| Wire Rope Replacement | $1,200 | $800 | $400 |
| Bearing Inspections | $900 | $500 | $400 |
| Electrical Checks | $750 | $450 | $300 |
| Total Annual Savings | $1,100+ |
4. Future-Proof Upgrades (Avoid Obsolescence)
- Capacity Expansion Options – Some models can be upgraded to 25T
- Smart Control Retrofits – Add IoT monitoring without replacing the crane
- Automation Readiness – Pre-wired for robotic integration
Upgrade Cost vs. New Purchase:
| Scenario | Full Replacement Cost | Dongqi Retrofit Cost | Savings |
|---|---|---|---|
| Adding Automation | $120,000+ | $35,000-$50,000 | 70%+ |
| Increasing to 25T | $150,000+ | $20,000-$40,000 | 75%+ |
5. Resale Value & Asset Recovery
- Higher Residual Value – Dongqi cranes retain 20-30% value after 15 years
- Certified Refurbishment Program – We buy back used cranes for refurbishment
- Global Demand for Reliable Used Cranes – Easier to sell in secondary markets
Projected Resale Value After 10 Years:
| Initial Price | Standard Market Value | Dongqi Resale Value |
|---|---|---|
| $80,000 | $24,000 (30%) | $40,000 (50%) |
Why Dongqi Delivers the Best TCO?
✔ Energy-efficient designs → Lower operational costs
✔ Longer-lasting materials → Fewer replacements
✔ Smart maintenance features → Reduced downtime
✔ Upgrade flexibility → Protect your investment
Request a TCO Analysis Report – Our engineers will calculate your exact savings over 10, 15, or 20 years based on your usage.
📞 Contact Us Today for a Customized Quote!
📧 Email: sales010@cranesdq.com
🌐 Visit: https://sg.craneyt.com/
Appendix: Technical Comparison Table
| Feature | Standard Model | Premium Model | Explosion-Proof |
|---|---|---|---|
| Duty Class | A5 | A6 | A7 |
| Positioning Accuracy | ±10mm | ±5mm | ±8mm |
| Control Options | Pendant | RFID+Remote | ATEX Remote |
| Maintenance Interval | 500h | 750h | 400h |
| Energy Consumption | 18kW | 15kW | 22kW |
| Price Range | $45k-$80k | $60k-$110k | $85k-$220k |
This comprehensive offering ensures you get the ideal 20 ton overhead crane solution that balances performance requirements with budget considerations, backed by Dongqi’s industry-leading expertise and support.
