Introduction

Single girder Electric Overhead Traveling (EOT) cranes are essential for material handling in industries like manufacturing, warehouses, and construction. Dongqi Crane, a leading single girder EOT crane manufacturer, offers a range of models from 1 ton to 20 tons, catering to diverse lifting needs.

This guide compares single girder vs. double girder EOT cranes, analyzes LD-type and LDP-type designs, lists specifications and prices, and explains key parts and suppliers for informed purchasing decisions.

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1. Types of Single Girder EOT Cranes

Single girder EOT cranes are categorized based on design standards, structural configurations, and application requirements. Below is a detailed comparison of the most common types available from Dongqi Crane, along with their key features and industrial applications.

Comparison Table of Single Girder EOT Crane Types

Type	Capacity Range	Span Range (m)	Lifting Speed (m/min)	Key Features	Best Applications
LD-Type	1–20 tons	5–22.5	8/20 (Hoist/Trolley)	– Standard I-beam construction – Hook or grab bucket compatible – Cost-effective for medium-duty use	– Manufacturing workshops – Warehouses – Assembly lines
LDP-Type	1–10 tons	5–16	8/20 (Hoist/Trolley)	– Low headroom design – Lightweight structure – Reduced wheel load	– Small factories with height restrictions – Production lines with limited space
European Standard	1–16 tons	5–25	3.8–20 (VFD adjustable)	– Compact and energy-efficient – Smooth operation with VFD control – High precision positioning	– Automotive industry – Food processing plants – High-precision manufacturing

Detailed Analysis of Each Type

1. LD-Type Single Girder EOT Crane

• Structure: Uses a single I-beam or box girder for the main bridge, supported by end carriages with forged steel wheels.
• Hoist System: Typically equipped with CD/MD-type electric wire rope hoists for vertical lifting.
• Advantages:
  • Lower initial cost compared to double girder cranes.
  • Simple maintenance due to fewer moving parts.
  • Suitable for general material handling in workshops and storage facilities.
• Limitations:
  • Not ideal for very heavy loads (>20 tons) or long spans (>22.5m).

1. LDP-Type Single Girder EOT Crane

• Structure: Features a lightweight girder with optimized headroom, making it ideal for facilities with low ceilings.
• Hoist System: Uses a low-profile hoist to maximize lifting height in constrained spaces.
• Advantages:
  • Space-saving design (ideal for facilities with height restrictions).
  • Lower wheel load reduces runway beam requirements.
• Limitations:
  • Lower capacity (max 10 tons) compared to LD-type.

1. European Standard Single Girder EOT Crane

• Structure: Built with welded box girders for higher rigidity and precision.
• Hoist System: Integrated with variable frequency drives (VFD) for smooth acceleration/deceleration.
• Advantages:
  • Energy-saving operation (up to 30% less power consumption).
  • Anti-sway control for precise load positioning.
• Limitations:
  • Higher cost due to advanced features.

Which Type Should You Choose?

• For general industrial use (1–20 tons): LD-Type (most cost-effective).
• For low headroom facilities (1–10 tons): LDP-Type (space-optimized).
• For high-precision, frequent operations (1–16 tons): European Standard (premium performance).

Next Step: Check Section 2 for a comparison between single vs. double girder EOT cranes to determine the best fit for your needs.

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2. Single Girder vs. Double Girder EOT Crane

Feature	Single Girder	Double Girder
Cost	Lower (¥15,000–¥150,000)	Higher (¥50,000–¥300,000)
Lifting Capacity	Up to 20 tons	Up to 500+ tons
Span Range	5–22.5m	10–35m+
Headroom	Compact	Requires more space
Maintenance	Easier	More complex
Best For	Small workshops, light loads	Heavy industries, steel plants

✔ Choose Single Girder If:

• Budget is limited.
• Lifting needs are ≤20 tons.
• Facility has low ceiling height.

✔ Choose Double Girder If:

• Handling >20 tons.
• Long-span requirements (>22.5m).
• High-duty cycle (e.g., steel mills).

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3. Single Girder EOT Crane Specifications (Dongqi Models)

Model	Capacity	Span (m)	Lifting Height (m)	Motor Power (kW)	Price (RMB)
DQ-LD-1T	1 ton	5-10	6-18	2.2	¥15,000–¥25,000
DQ-LD-2T	2 tons	5-12	6-18	3.0	¥18,000–¥30,000
DQ-LD-3T	3 tons	5-15	6-18	4.5	¥22,000–¥35,000
DQ-LD-5T	5 tons	5-18	6-18	7.5	¥35,000–¥55,000
DQ-LD-10T	10 tons	10-22.5	6-24	13.0	¥65,000–¥100,000
DQ-LD-20T	20 tons	12-22.5	6-24	22.0	¥120,000–¥150,000

Notes:

• Prices vary based on span, lifting height, and optional features (VFD, remote control).
• LDP models cost 10-15% less due to simplified structure.

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4. Key Parts of a Single Girder EOT Crane

Component	Function	Dongqi Standard
Main Girder	Supports load	GB/T 706-2016 steel
Hoist & Trolley	Lifts/moves load	CD/MD-type electric hoist
End Carriages	Moves crane along runway	Forged steel wheels
Control System	Operates crane	Push-button pendant / wireless remote
Runway Beam	Supports crane movement	Adjustable for floor conditions

Optional Upgrades:

• Variable Frequency Drive (VFD) – Smoother operation (+¥5,000–¥15,000).
• Anti-sway system – Precise load positioning (+¥8,000).
• Explosion-proof design – For hazardous environments (+¥20,000+).

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5. Why Choose Dongqi Crane as Your Supplier?

✔ ISO 9001 Certified – Ensures high manufacturing standards.
✔ Custom Solutions – Adjustable span, height, and control options.
✔ Fast Delivery – 15-30 days for standard models.
✔ After-Sales Support – 2-year warranty, spare parts available.

Contact Dongqi Crane Today:
📧 Email: sales010@cranesdq.com
📞 Phone: +86 18638815424
🌐 Website: https://pk.craneyt.com/

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Conclusion

Single girder EOT cranes from Dongqi Crane offer cost-effective, space-saving lifting solutions for capacities from 1 ton to 20 tons. Whether you need an LD-type for general use or an LDP-type for low headroom, Dongqi provides reliable, customizable options at competitive prices.

For heavy-duty applications, consider double girder cranes, but for most industrial needs, a single girder EOT crane is the optimal choice.

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