TD250 (TD5520) Luffing Jib Tower Crane

Brand: Zhengxing
Model: TD250 (TD5520)

Product Introduction

1. Technical Features

The TD250 (TD5520) is a high-performance luffing jib tower crane designed for construction projects in confined spaces and high-density urban environments. Its compact structure, high-strength tower body, and advanced control system provide excellent lifting performance, smooth operation, and reliable safety.

• Compact luffing jib design requires minimal operating space, making it ideal for urban high-rise construction and multiple crane operations.

• The tower body is manufactured from high-strength Q345 steel, offering excellent strength and durability.

• Maximum working radius: 55 m

• Maximum lifting capacity: 12 tons

• Maximum tip load capacity: 2.0 tons

• Rated lifting moment: 2500 kN·m

• Free-standing height: 50 m

• Maximum attached height: Up to 200 m using wall tie attachments.

2. Standard Tower Section

• Standard section dimensions: 1.7 × 1.7 × 3.0 m

• Main material: L200 × 200 × 20 mm Q345 high-strength angle steel

• Pin-shaft connection design ensures quick installation, convenient transportation, and stable assembly.

• Multiple foundation installation options are available:

  • Outrigger fixing

  • Base frame counterweight fixing

  • Embedded anchor bolt fixing

3. Performance & Safety Features

• Modern appearance with optimized structural design.

• High working efficiency with excellent speed regulation performance.

• Advanced luffing and slewing control systems provide smooth, accurate, and stable operation.

• Independent external space capsule operator cabin offers a wide viewing angle and a comfortable operating environment.

• Equipped with comprehensive mechanical and electromechanical safety devices to ensure safe and reliable operation under demanding construction conditions.

Electrical Control System

Standard Version

• Hoisting mechanism uses a multi-speed pole-changing motor, reducing impact during operation.

• Equipped with genuine Schneider Electric components for dependable and stable performance.

Energy-Saving Version

• Hoisting mechanism utilizes variable frequency drive (VFD) technology with a premium electrical control system.

• Delivers smoother lifting, improved energy efficiency, and reliable operation.

Slewing & Luffing System

• The slewing mechanism adopts a dual-wound rotor motor with series resistance speed control, ensuring smooth and precise rotation.

• The luffing mechanism uses a dual-speed motor control system to achieve stable movement and high operating efficiency.

Main Specifications