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3 ft

At iStudio Projects, our iSP Side-Loading Rod Arbor 3 ft is a compact counterweight arbor engineered for smaller counterweight fly systems or venues with limited travel height. Its side-loading rod design simplifies counterweight brick addition and removal at the loading rail, while spreader plates at every 2 ft of rod height maintain structural integrity and rod alignment throughout the full travel range.

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Product Description

  • Model #: ISP.RA3
  • Dim A (Travel Height): 3′-0″
  • Dim B (Overall Height): 3′-8″
  • Arbor Weight: 56 lbs
  • Rod Diameter: 3/4″
  • Arbor Width: 10″
  • Spreader Plates: Required every 2 ft
  • 5″ x 1 7/8″ Bricks: Max 15 qty / 555 lbs
  • 5″ x 1 1/8″ Bricks: Max 24 qty / 504 lbs
  • Side-loading rod design allows counterweight bricks to be loaded and unloaded from the side without disassembling the arbor
  • Spreader plates at every 2 ft of rod height maintain rod spacing and arbor rigidity under full load
  • Fabrication date stamped on each unit for lifecycle and inspection tracking
  • Compatible with both 5″x1 7/8″ and 5″x1 1/8″ standard counterweight bricks
  • Warning labels and ANSI E1.47 inspection requirements affixed to each unit
  • Load Limit: Do not exceed maximum brick capacity — 15 qty (555 lbs) for 5″×1 7/8″ bricks or 24 qty (504 lbs) for 5″×1 1/8″ bricks
  • Brick Loading: Load and unload counterweight bricks only at the designated loading rail with the arbor at the correct loading position; never load a moving arbor
  • Spreader Plates: Confirm all spreader plates are properly seated and secured before operation; do not operate with missing or loose spreader plates
  • Rope Condition: Do not operate with twisted, kinked, or damaged operating line
  • Equipment Condition: Do not operate damaged, malfunctioning, or modified equipment
  • Clearance: Keep all personnel clear of rope paths, arbor travel zone, and pinch points during operation
  • Annual Inspection: Required per ANSI E1.47; record fabrication date and inspection history per unit
  • Brick Compatibility: Do not mix brick sizes within the same arbor loading without recalculating total counterweight

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