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The Light Source

The Light Source Fork Adapter, Center Point, 21.5" CTR

$295.00

The Light Source Fork Adapter with a 21.5-inch center point is a versatile mounting solution designed for professional lighting systems. It allows precise positioning of lighting fixtures, ensuring accurate alignment for studio, stage, or event setups.

Constructed from high-quality materials, the adapter provides strength and durability while supporting heavy lights safely. Its fork-style design enables quick installation and secure attachment to trusses or support structures.

Ideal for theatrical, broadcast, and live event environments, this adapter ensures efficient lighting rig setup and flexible positioning, making it an essential tool for lighting professionals.

View Product Features

  • Heavy-duty fork adapter designed for truss and rigging applications
  • 21.5" center point for balanced load distribution
  • Precision-engineered for secure attachment to lighting grids
  • Durable aluminum construction ensures long service life
  • Ideal for theaters, stage productions, and event setups
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About the The Light Source Fork Adapter, Center Point, 21.5" CTR

The Light Source Fork Adapter with a 21.5-inch center point is a sophisticated mounting component engineered to create stable, cantilevered T-junctions within tubular aluminum frameworks. Unlike a simple inline coupler, this adapter features a "fork" or U-shaped yoke at its terminus, designed to securely cradle and clamp onto a second pipe perpendicularly at its exact midpoint. The specified 21.5-inch CTR (Center) measurement is critical, indicating the precise distance from the adapter's own mounting point on a primary pipe to the geometric center of the secondary pipe it will hold. This dimension allows for meticulous planning and symmetrical construction, ensuring balanced loads and predictable geometry in complex assemblies like freestanding displays, multi-tiered shelving units, or specialized equipment stands.

The adapter's core utility lies in its ability to facilitate strong, right-angle intersections without requiring the secondary pipe to be drilled or modified. The fork design typically employs two opposing clamping points with set screws, which, when tightened, apply uniform pressure to secure the traversing pipe firmly and prevent rotation or slippage. Finished to match The Light Source's standard specifications, the component is machined from high-strength aluminum, offering an optimal balance of durability and weight. This design is indispensable for creating cross-braces, outrigger supports, and extended arms where precision placement and structural integrity are paramount.

In practical application, this Center Point Fork Adapter transforms a modular build from a simple two-dimensional grid into a dynamic three-dimensional structure. By enabling precise, repeatable off-center connections, it allows designers to create overhangs, canopies, and layered platforms with confidence. The fixed center-point dimension eliminates guesswork during assembly, ensuring consistency across multiple identical junctions in a project. Whether used to mount a horizontal banner pole atop a vertical stanchion or to create the arms of a large freestanding product rack, this adapter provides a reliable, calculable, and professional method for expanding the functional and spatial possibilities of modular pipe-based construction.

Key Features

  • Heavy-duty fork adapter designed for truss and rigging applications
  • 21.5" center point for balanced load distribution
  • Precision-engineered for secure attachment to lighting grids
  • Durable aluminum construction ensures long service life
  • Ideal for theaters, stage productions, and event setups

The Light Source Fork Adapter, Center Point, 21.5" CTR Specs

Product Geometry
Adapter Type
Fork & Yoke, Perpendicular Mount
Critical Dimension
21.5 Inch Center Point (CTR)
CTR Definition
Distance from Mounting Pipe CL to Cradled Pipe CL
Connection Angle
90 Degrees
Dimensional Specifications
Center Point Measurement
21.5 Inches (546.1 mm)
Fork Width (Internal)
Matches Standard Pipe OD (e.g., 1.5" or 2")
Fork Engagement Depth
Approximately 1-2 Inches per Side
Mechanical & Material Details
Body Construction
Machined or Cast Aluminum Alloy
Clamping Mechanism
Dual Opposing Set Screws per Fork Arm
Surface Finish
Black Anodized or Powder Coat (Model Dependent)
Functional Application
Primary Use
Creating Cantilevered T-Junctions & Cross-Members
Load Direction
Designed for Significant Bending Moment at Fork
Installation Reference
Requires Measuring from Primary Pipe Centerline
Symmetry
Ensures Balanced Mounting for Traversing Pipe

Key Features

  • Heavy-duty fork adapter designed for truss and rigging applications
  • 21.5" center point for balanced load distribution
  • Precision-engineered for secure attachment to lighting grids
  • Durable aluminum construction ensures long service life
  • Ideal for theaters, stage productions, and event setups
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