Ladder Rack – Cable Runway Tool-less Stringer Radius Drop

Gruber Tool-less Stringer Radius Drop — 3″ Bend-Radius Drop for 1-1/2″ Cable Runway

The Gruber Tool-less Stringer Radius Drop provides a fast, hardware-free way to maintain a 3″ (76 mm) cable bend radius wherever cables leave the cable runway. Its patented slip-over design slides directly over 1-1/2″ high runway stringers, eliminating screws and extra brackets while delivering a secure, standards-conscious drop point for copper and fiber cabling in high-density data center and enterprise environments.

Engineered for compatibility with Universal, TELCO, UL-Classified, and Adjustable cable runway systems, this radius drop functions as a universal “radius tool” for a wide range of enclosure types. Integrated cable spools, each 1.4″ (36 mm) high and 1″ (25 mm) in diameter, guide and separate cables while preserving bend radius, reducing attenuation and signal loss. With Saf-T-Grip® slots built in, technicians can secure bundles with standard cable ties or Saf-T-Grip® clamps — all without picking up a screwdriver.

• Tool-less slip-over installation — Slides over 1-1/2″ stringers; no screws, drilling, or extra hardware required.
• 3″ (76 mm) bend radius — Provides a precise radius for fiber and copper drops, aligning with industry best practices.
• Integrated cable spools — 1.4″ high x 1″ diameter spools organize and guide cables through smooth, controlled bends.
• Multi-system compatibility — Works with Universal, TELCO, UL-Classified, and Adjustable cable runway systems.
• Saf-T-Grip® ready — Built-in slots allow quick securing of cables using cable ties or Saf-T-Grip® clamps.
• Ideal for new builds and retrofits — Installs in seconds, supports high-density drops, and scales easily as rack layouts evolve.