Overview

This document provides comprehensive technical specifications and operational data for the MR 295 H20 tower crane model, fully compliant with EN 14439 C25-D25 standards. It covers structural components, load capacities, mechanical equipment, ballast configurations, mast reactions, and operational parameters essential for safe and efficient crane use.

1. Load Capacities and Reach

• Maximum jib length extends up to 60 meters.
• Load capacities vary significantly depending on jib length and height, ranging from approximately 2.7 tonnes to 20 tonnes.
• Detailed load charts specify maximum permissible loads at various jib lengths and heights, tailored for different configurations (e.g., 30 m, 35 m, 40 m, up to 60 m).
• Load curves are designed according to EN 14439 C25-D25 wind profile conditions, ensuring compliance with European safety standards.

2. Structural Components and Dimensions

• Mast sections include types V 60A, Y 800B, and ZX 6830, each with precise dimensions (height, length, width) and weight data.
• Counter-jib and jib sections are detailed with exact measurements and weights, including options for reinforced frames to enhance structural integrity.
• Basic mast units, connecting masts, and fixing angles are specified with their dimensions and masses for accurate assembly.
• Chassis components such as half-bearers, side members, ballast supports, and cross girders are described with corresponding sizes and weights.

3. Mechanical Equipment

• Hoisting and luffing winches are characterized by performance metrics including speeds (in meters per minute), power ratings (kVA), and load capacities.
• Power supply requirements are specified as 400 V ±10%, 50 Hz, with kVA ratings for different winch models (e.g., 100 LVF, 150 LVF GH).
• Additional components such as pulleys, struts, cabin, and pivot parts are detailed with their dimensions and weights.

4. Ballast and Counterweights

• Base ballast weights include CBJ at 3950 kg and CBK at 1000 kg.
• Counter-jib ballast and jib weights are provided for various configurations to ensure stability.
• Recommendations for ballast setups depend on jib length and overall crane configuration to maintain balance and safety.

5. Mast Reactions and Anchoring

• Mast reaction forces are detailed for different heights and jib lengths, covering both in-service and out-of-service conditions.
• Anchorage frames and fixing angles are specified with dimensions and weights to guarantee secure installation and structural integrity.

6. Operational Parameters and Standards

• The crane complies with EN 14439 C25-D25 standards for wind conditions and load handling.
• Electrical safety follows IEC 60204-32 standards.
• The document is commercial and non-contractual; users should verify technical details with official manuals before installation or operation.

7. Additional Notes

• Specific configurations with reinforced frames are available upon request.
• All dimensions and weights include a tolerance of ±5%.
• Terminology is presented in multiple languages to support international users.

Anchorage Frame Status

The document mentions a "Loosened Anchorage Frame," indicating a potential condition requiring inspection or adjustment to maintain anchorage integrity.

Operational Movements

• Hoisting (Levage): Lifting operations.
• Luffing (Relevage): Adjusting the boom angle.
• Slewing (Orientation): Rotating the crane or equipment.
• Travelling (Translation): Moving or translating the crane.

Power Requirements and Control

• Specified power requirements emphasize monitoring kVA consumption during operations.
• The Power Control Function dynamically adjusts winch speeds based on available power, optimizing performance and preventing overloads.

Recommendations

For detailed inquiries or specific configurations, users are advised to consult the crane provider or manufacturer to ensure compliance and safety.