Doughty Swivel Coupler (Super Lightweight) - 1.5''& 2''Diameter, (Cheeseboro) The Doughty Swivel Coupler (Super Lightweight), also known as a Cheeseboro clamp, is engineered to provide a secure and flexible connection between two round tubes at any angle. Ideal for suspending lighting equipment, truss systems, and other rigging elements, this coupler ensures a fast and firm fixing in dynamic production environments. Constructed from high tensile Aluminum Extrusion, this coupler is designed to clamp around tubing diameters of 1'', 1.25'', and 1.5''. It is commonly used across theatre, film, television, and photographic industries where strength and lightweight handling are essential. This product belongs to the Atom range of Doughty clamps, which includes both Swivel and 90 Degree Fixed Couplers. It is available in Black or Polished Aluminum finishes to best suit your rigging aesthetics and functional needs. Downloads: User Manual Key Features: Swivel design allows adjustable angles for dynamic rigging configurations Supports a Safe Working Load (SWL) of up to 220 lbs Lightweight, high-strength aluminum extrusion construction Compatible with 1'', 1.25'', and 1.5'' tube diameters Part of the Doughty Atom range of compact professional couplers Specifications: SWL: 220 lbs Width: T58880 - 0.83'' T58815 - 1.18'' T58980 - 1.18'' Tube Diameters: 1'', 1.25'' and 1.5'' Tube Centres: T58880 - 1.87'' T58815 - 2.17'' T58980 - 2.36'' Finish: Black or Polished Aluminum References: Spec Sheet User Manual Cert What is a Cheeseboro? Cheeseborough clamps aka Cheeseboro, Scaffold Clamps, Couplers, Swivels and even Cheese-burger or Burger Clamps. The name is believed to derive from the Chesebro-Whitman manufacturing company of New York. The devices are used for connecting iron pipes or aluminum tubes. They come in two styles; rigid (aka fixed 90°) or Swivel.
