Mobile frames, including hoisting frames and cross arms, provide flexible and stable support for cable trays in overhead or wall-mounted installations.

Types of Mobile Frames

1. Hoisting Frames:

• Designed for small-sized cable trays.
• Advantages: low cost, easy installation, and practical for less demanding applications.
• Typical setup includes the hoisting frame, a suspension rod, and a five-piece fastening kit.
• Recommended installation ratio: one hoisting frame per 1.5 to 2 meters of cable tray, each with one suspension rod and one fastening kit for stability and support . 2. Cross Arms:
• Suitable for large-sized cable trays requiring more robust support.
• Advantages: good stability, facilitates maintenance, and supports heavier cable loads.
• Each cross arm requires two suspension rods and two sets of five-piece kits.
• Recommended installation ratio: one cross arm per 1.5 to 2 meters of cable tray .

Accessories and Components

• Suspension Rods (Lead Screws): Connect the ceiling to hoisting crossbars; adjustable and can be cut to length on-site. Often used with expansion components and nuts for secure attachment .
• Support Brackets: For horizontal or vertical wall installations, providing stability and ease of maintenance .
• Bolts and Connectors: Ensure secure fixation of wall-mounted or floor-mounted supports and maintain continuity between cable tray sections .

Modular Metal Framing Systems

• Systems like Kindorf® 1 1/2" modular channels or Superstrut® 1 5/8" metal framing allow flexible support for cable trays, pipes, and other electrical components.
• Benefits include interchangeable parts, multiple plating options, and reduced labor due to modularity .
• Fasteners like E-Klips springsteel clips enable quick attachment to steelwork without drilling or nuts/bolts .

Installation Considerations

• Ensure adequate spacing between frames or cross arms to support the cable tray's weight and prevent sagging.
• Use appropriate suspension rods for vertical support, especially in overhead installations.
• Select frame type based on tray size, load, and maintenance requirements.
• Follow standards such as DIN EN 61537 for cable support systems to ensure safety, durability, and compliance . Mobile frames provide a versatile and reliable solution for cable tray installations, allowing for both small and large tray systems to be securely supported while maintaining accessibility for maintenance and future modifications.