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Testing & Quality Assurance

 Load Testing

All Slings manufactured by SlingMart are proof tested according to ASME B30.9.

Web Slings and Polyester Roundslings

  • Each single- or multiple-leg slings and endless slings is proof loaded to a minimum of 2 times the single-leg straight-line hitch rated load.
  • All master links for two-leg bridle slings are proof loaded to a minimum of 4 times the single-leg straight-line hitch rated load.
  • All master links for three-leg bridle slings are proof loaded to a minimum of 6 times the single-leg straight-line hitch rated load.
  • All master links for four-leg bridle slings are proof loaded to a minimum of 8 times the single-leg straight-line hitch rated load.

Alloy Chain and Chain Mesh Slings

  • Each single- or multiple-leg slings and endless slings is proof loaded to a minimum of 2 times the single-leg straight-line hitch rated load.
  • All master links for two-leg chain slings are proof loaded to a minimum of 4 times the single-leg straight-line hitch rated load.
  • All master links for three- and four-leg chain slings are proof loaded to a minimum of 6 times the single-leg straight-line hitch rated load.

Wire Rope Slings

  • Mechanical splice slings, swaged socket and poured socket slings are proof loaded a minimum of 2 times and a maximum of 2.5 times the single-leg straight-line hitch rated load.
  • Hand-tucked slings is proof tested a minimum of 1 time and a maximum of 1.25 times the single-leg straight-line hitch rated load.
  • All master links for two-leg bridle slings are proof loaded to a minimum of 4 times the single-leg straight-line hitch rated load.
  • All master links for three-leg bridle slings are proof loaded to a minimum of 6 times the single-leg straight-line hitch rated load.
  • All master links for four-leg bridle slings are proof loaded to a minimum of 8 times the single-leg straight-line hitch rated load.

Fabrication and Testing Equipment

SlingMart uses several different types of fabrication and testing equipment. 

  • Four swaging machines attach a wide variety of fittings; PROMEC 438 55 ton,  PROMEC Q6000 175 ton, ESCO Mark 100 350 ton and Mark 150 500 ton presses.
  • Markham high speed automatic cable cutter.
  • High speed automatic web cutter, Singer and Consew Class 7 sewing machines.
  • 200,000 lb. horizontal test bed.
  • 12,000 lb. vertical test bed.

Quality Assurance

All of our slings go through a thorough quality control process. 

  • All materials are checked for any defects
  • Experienced sewers and fabricators use company-standardized methods that comply with ANSI design standards.
  • Products are checked by the Quality Control Manager before leaving our facility.

High quality products are of the highest importance to us while staying within your delivery deadline. If you have any additional questions regarding our fabrication standards and methods, please email us at sales@slingmart.com.