DNS

DNS Range

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The Hi-Force DNS range of double acting, hydraulic nut splitters offers a choice of 2 models suitable for splitting nuts of across flats (AF) sizes from 75 mm to 136 mm (2.15/16” to 5.3/8”). Both models are 700 bar maximum working pressure and feature a double acting hydraulic piston for easy extension and retraction of the toughened steel splitting blade. Hi-Force DNS range hydraulic nut splitters are easy to set up and capable of safely splitting nuts quickly without any sparks, flames or flying debris usually associated with cutting torches.

  • Nut AF sizes from 75 to 136 mm
  • Bolt sizes from M48 to M95
  • Working pressure 700 bar
  • Double acting hydraulic piston for easy extension and retraction of the blade
  • Angled body design for increased clearance on flanges and flat surfaces
  • High quality steel construction
  • Pressure relief valve on annulus side
  • Suitable for splitting nuts up to RC44 hardness
  • Designed to fit on most API and ANSI flanges
  • Steel linkage keeps blade cutting edge parallel to the nut throughout the splitting process
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Double acting nut splitters
Double acting nut splitters
Model Number Capacity tonnes Oil Capacity cm3 Hexagon AF Sizes Stud Bolt Thread Sizes Weight kg
mm inch metric imperial
DNS404 119.6 796 75 - 105 2 15/16" - 4 1/4" M48 - M72 1 7/8" - 2 3/4" 50
DNS506 203.4 1510 105 - 136 4 1/4" - 5 3/8" M72 - M95 2 3/4" - 3 1/2" 96

Note: DNS nut splitters are for use on heavy duty nuts, where the nut height is equal to or greater than two-thirds of the blade length of the tool being used.


Model Number Dimensions in mm
A B C D E F
DNS404 379 192 99.5 130.5 183 34
DNS506 451 240 140 167.5 235 41

Note: Please check dimension 'F' to confirm the tool will fit in the space between the edge of the nut and the neck of the flange.