Custom Crane Spans: How Beam Length Affects Design

Overview of Overhead Cranes

Overhead cranes, equipped with wire rope electric hoists, serve as essential lifting equipment in workshops. They streamline material handling in machining shops, metallurgical plants, warehouses, storage yards, and power stations—facilitating transport, assembly, maintenance, and loading tasks. These cranes enhance industrial productivity by automating processes, reducing manual labor, and improving efficiency. Key advantages include compact design, high rigidity, smooth operation, low noise, minimal building clearance requirements, lightweight construction, reduced wheel pressure, and reliable safety features.

Custom Crane Requirements

When ordering a custom crane, clients must specify key parameters: lifting capacity, span, height, and travel length. Among these, the span—directly linked to the main beam length—plays a critical role in structural design.

Determining the Span

1. Steel Structure Workshops:
   In pre-engineered steel buildings, designers typically integrate crane support beams and rails. The crane span matches the center-to-center distance between rails.
2. Retrofitted Concrete Workshops:
   For older concrete facilities requiring new support beams (brackets) and rails, the rail spacing depends on the building width. To ensure proper installation and operation:
   • Single-girder cranes need at least 25 cm clearance between rails and building edges.
   • Double-girder cranes require 40 cm clearance.
     Users can use these measurements to position support beams and calculate the crane span.

Manufacturer Expertise

As a dedicated single-girder crane manufacturer, we integrate engineering, fabrication, and installation services. Committed to customer satisfaction, we enforce strict quality management and continuous technical innovation. Our focus on precision and reliability has earned trust across industries.