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header int innovation UltraNut™ UltraBolt™ Jack Bolt Tensioning System

UltraNut™-UltraBolt™ Jack Bolt Tensioning System

ultranut 256 UltraNut™ UltraBolt™ Jack Bolt Tensioning SystemMP® Series • HP® Series • Gyratory

These specially designed head nuts and locking bolts ensure precise, uniform preload and eliminate the need for a torch ring. Our engineering group has created a solution that makes liner changes faster, easier, and safer. These unique designs offer protection of the threads on the locking nut and the head. Expect a quick return on investment with this Excel Innovation.


ultranut vs oem UltraNut™ UltraBolt™ Jack Bolt Tensioning SystemBenefits

  • Faster, Safer, Cost Effective
  • Uniform Pre-load
  • Rebuildable with Excel Replacement Components
  • AR400 Sleeve Protects Locking Nut from Wear
  • Silicone Seal Protects Head Threads from Dust
  • Eliminates “Slug Wrench” Installation & Removal
  • Safer than Cutting the Torch Ring
  • Easier Assembly and Disassembly
  • Quicker Mantle Changes
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Product Demonstration

Products in the Series

ultranut ultrabolt collage 640 300x224 UltraNut™ UltraBolt™ Jack Bolt Tensioning SystemUltraNut™ for MP® Series

The Excel UltraNut™ was originally developed for the MP® Series cone crushers. Currently available for the MP800™, MP1000™, and MP1250™.

UltraBolt™ for HP® Series (Patent Pending)

Excel has also designed the UltraBolt, Jack Bolt Tensioning Locking Nut for HP® Series cone crushers. Utilizing the same jack bolt tensioning system as the UltraNut, the UltraBolt is an excellent choice for HP Series cone crushers in replacement of the conventional locking bolt design. Currently available for the HP500™, HP700™, and HP800™.

Product Demonstration

UltraNut™ for 60×89 Gyratory Crushers

Also new on the market is Excel’s design for the UltraNut for the 60×89 gyratory crusher. Talk to your Excel professional about this option and our plans for other sizes of gyratory-style crushers.

Note: Due to the unique design of the Excel UltraNut and UltraBolt, it is necessary to use specially designed feed plates offered by Excel Foundry & Machine.

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All brand names, model names or marks are owned by their respective manufacturers. Excel Foundry & Machine has no affiliation with the original equipment manufacturer. These terms are used for identification purposes only and are not intended to indicate affiliation with or approval by the OEM. All parts are manufactured by, for and warranted by Excel Foundry & Machine and are not manufactured by, purchased from or warranted by the original equipment manufacturer.