Overview

This document provides detailed technical specifications, component descriptions, and dimensional data for crane components, focusing on end carriages, wheels, gearboxes, and electrical components used in single and double girder cranes, including underslung and gantry crane models.

1. Crane Components and End Carriages

The document lists various end carriage models identified by wheel diameters (e.g., Ø125-VB1, Ø160-VB2, Ø250-VC, Ø315-VC, Ø400-VD, Ø500-VD/VE) and their corresponding capacities and spans. It distinguishes between single girder and double girder cranes, providing wheel base measurements and span ranges in meters.

Key parameters include wheel diameter, wheel base, span, and capacity in tonnes. End carriages are available in welded (S), articulated (A), single girder (M), and double girder (B) types. Dimensions such as L1, L2, L3, L4, e1, e2, B, H1, H2, and H are provided for precise fitting and installation.

2. Wheel Selection and Specifications

The wheel selection chart categorizes wheels by diameter and type, indicating their suitability for different crane models and travel speeds. Wheels have double flanges with mounted bearings and are driven directly via splined shafts for smooth acceleration and braking with minimal noise.

Wheel diameters range from 125 mm to 630 mm, with corresponding wheel bases and load capacities. The document notes that final wheel diameter selection depends on speed, duty, and rail width.

3. Gearboxes and Motor Specifications

Details on three-stage and four-stage motor-gearboxes designed specifically for cross travel and long travel motions are included. Motor power ratings range from 0.4 kW to 7.5 kW, with various gearbox types (e.g., VD-110, VE-110, VC-110) matched to motor types for optimal performance.

Gearboxes provide gradual acceleration and smooth braking, contributing to operational efficiency and noise reduction.

4. Dimensional Data and Weights

Comprehensive tables provide dimensional data for end carriages and wheel heads, including minimum dimensions, weights (in kilograms), and girder base measurements. These dimensions are critical for ensuring compatibility with crane girders and rails.

Weights vary by model and configuration, with specific notes on minimum dimensions and availability of loose items for certain carriage sizes.

5. Wheel Heads for Gantry Cranes

The document includes specifications for wheel heads used in gantry cranes, detailing rail widths, cross travel speeds, wheel diameters, motor types, gearbox types, and maximum admissible wheel loads according to FEM/UNE M4 group standards.

Rail types covered include Burbach rail, curved rail, and square rail, with formulas for calculating rail dimensions (e.g., k = L - 2r).

6. Boogies for Gantry Cranes

Boogies are specified for wheel diameters ranging from 315 mm to 630 mm, with detailed component numbering and assembly references.

7. Electrical Components

The document lists electrical components integral to crane operation, including hoist limit switches, load limit devices, pendant plug-in connectors, cross and long travel limit switches and actuators, motor plug-in connectors, towing arms, current collector arms, festoon cable protection supports, cable clips, profile connections, sliding supports, end limits, cable trolleys, remote controls, girder supports, profile supports, and control cabinets.

Critical Information and Best Practices

• Wheel diameter selection must consider speed, duty cycle, and rail width to ensure optimal performance and safety.
• End carriage dimensions and weights must be matched precisely to crane girder specifications to maintain structural integrity.
• Motor-gearbox combinations are designed for smooth acceleration and braking, minimizing noise and mechanical stress.
• Electrical components are essential for operational safety and control, with multiple limit switches and connectors ensuring precise motion control and overload protection.
• All data provided are approximate; final selections should be validated against specific application requirements.

For further technical assistance or detailed component selection, contact GH Cranes & Components at their headquarters in Beasain, Spain.