Johnson Bros. Roll Forming Co.
Johnson Bros. Roll Forming Co.
5744 McDermott Drive
Berkeley, Illinois 60163-1102
24 Hour Telephone: (708) 449-7050
Fax: (708) 449-0042
Email: team@johnsonrollforming.com
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Lockseam Tubing is Formed From All Types of Metals Either Plain or Prepainted, Galvanized, Prepolished, Prelaminated Vinyl, Preanodized, Preplated, Pre-Embossed, Aluminized, Galvannealled, Strippable- PVC Covered.

    Inline Press Fabrications of: Holes, Slots, Notching, Tabs, Shear Forms, End Fabricating, Cut to Length, Pointing & Staking, Roll Edged Ends, Flattened Ends, and more.
  • Secondary Fabricating: End Fabricating, Roll Edge Ends, Bent and Flattened Ends, Cuttouts, and more.
  • Telescoping Sets Available for Lock Seam Tubes
  • Lock Seams are Tight and will not break open when bent, or flattened, or twisted.
  • Other Custom Special Shapes are possible, along with Finned or Flanged Seams.
  • Strippable PVC Protection can be added to lock seam tubes for Protecting Decorative Finishes.
  • Double Sided Adhesive Tape and Other Materials can be Applied Inline during forming.
  • Can be economical with Thin Wall, with Prefinishing and/or Inline Fabricating.
  • Thicker Wall Thicknesses can be provided with Special Tooling required. Ends of lock seam tubes can be Clean Cut, Dimple Free, using Inline Prenotching Tooling. Not Air or Water Pressure Holding, Collapses when Bent Steel Should be Prefinished. Raw Finished Steel is not as economical to Lock Seam Tubes
Unit of Measure

Specifications

Description

 N/A Standard Dies are available for the sizes below. Other sizes can be tooled up quickly and inexpensively in our plant. Inline and Secondary Fabrications such as: Telescoping, Hole Punching, End Fabrications and Swaging are also available. Special Square, Rectangular, Round, Oval and other variations are also available. There are also special Gap openings that can be made and different thicknesses available at little or no extra tooling cost. The following metals can be plain or prepainted, prelaminated, preanodized, preplated, pre-embossed, prepolished, prelaquered, strippable pvc coated, pregalvanized etc. : Steel, Stainless, Aluminum, Brass, Bronze, Copper, Alloys, Clad and more. Outside Dimensions offered with standard tooling: 5/8", 3/4", 7/8". More sizes available with new tooling. Standard thicknesses are from .012" through .018" thickness.