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Model TXB-3680 Bolt-on Safe-T-Lock Steel Tubular Frame

Picture displaying Model TXB-3680 Bolt-on Safe-T-Lock Steel Tubular Frame.
Product is shown in the picture to the left. Specifications for this product are found in the Delweld Product Catalog which is available for download below.

Spring Frame Construction

All components are fabricated from 70,000-PSI minimum yield strength HRP&O steel tubing. End sections are of 1 ½ inch square steel tubing with 14ga. (0.083”) wall thickness. Side sections are of 2 inch by 1 inch rectangular steel tubing with 14ga. (0.083”) wall thickness. Lateral cross braces (2) are of 1 inch square tubing with 14ga. (0.083”) wall thickness. Two specially designed bolt-on brackets are laser cut, and formed using 10ga.thickness HRP&O steel. They are robotically MIG welded to each side section. The side sections are specially notched on the inside to allow end insertion, which positively aligns and locks the end and side sections together before finish welding. After each component is processed to exacting tolerances, which includes cutting and perforating, they are accurately fixtured and are finish welded using state of the art robotics to insure total unitized frame integrity every time. This unique all tubular design greatly enhances overall strength and safety creating a new unmatched level of excellence.

*Other lengths and widths available


The spring surface is made up of 16 rows of 9 ga. sinuous spring wire with “Z” hooks on each end. There are six rows of 12ga. connecting links between each row of sinuous springs for a total of 90 links. There are five 12ga. helical springs, with 16 turns and a ¾ inch diameter, on each end of the spring frame. All spring components are inserted inside the tubular frame leaving it both tamper-proof and free of sharp edges.

Metal Finish

All components are cleaned, pickled, phosphated, and non-chromic sealed in six stages. They are then dried and electrostatically powder coated with hybrid dry powder and baked at 400 degrees. Color is Textured Black.

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