Method for making elbows in wire mesh cable trays

Elbows in wire mesh cable trays can be created using manual bending, bolt cutters, or professional fabrication methods, depending on the project requirements and available tools.

Manual Bending Method

For on-site adjustments or small projects, manual bending is a common approach. Start by cutting the wire mesh at the desired location using strong forceps or bolt cutters. Then, concave or bend the tray manually into the required elbow shape, such as a horizontal right-angle, inward, or outward bend. After shaping, install plastic or rubber caps on the cut ends to protect cables from sharp edges and maintain safety during installation .

Bolt Cutter Technique

Bolt cutters are particularly effective for live project adjustments. The jaws of the bolt cutter drag a layer of zinc across the cut end, forming a protective layer that prevents corrosion. This method allows installers to create bends, tees, crosses, risers, and reducers directly from straight sections without compromising the tray's durability .

Professional Fabrication

For larger or more precise installations, professional fabrication techniques are recommended. This involves:

• Selecting high-quality steel or stainless steel based on environmental conditions.
• Cutting tray components accurately using laser cutting machines or shearing tools.
• Assembling the frame with automated welding machines to ensure strong, durable connections.
• Applying surface treatments like galvanization or powder coating for corrosion resistance.
• Following industry standards for load-bearing and safety specifications .

Types of Elbows

Wire mesh cable trays can accommodate various elbow types:

• Horizontal right-angle bends for 90° turns.
• Vertical bends for elevation changes.
• Inward and outward bends for routing around obstacles.
• Continuous inner bends for smooth transitions along complex paths .

Tips for Quality and Safety

• Always double-check measurements against design blueprints before cutting or bending.
• Ensure smooth weld seams or capped edges to prevent cable damage.
• Use appropriate protective coatings to extend tray lifespan, especially in outdoor or harsh environments.
• Consider pre-fabricated elbow connectors for complex or repetitive installations to save time and maintain consistency . By combining these techniques, installers can create durable, safe, and flexible elbows in wire mesh cable trays suitable for a wide range of electrical and industrial applications.