Nautilus Nitro Plus Gravitron

Generate more motivation for members with superb upper body strength equipment. The Nautilus Nitro® Plus Gravitron stands alone as the only Chin/Dip machine to provide a proper biomechanical movement pattern.     

  • Four-bar linkage controls path of motion for proper biomechanics 
  • Kneeling design reduces height and enhances comfort 
  • Chin bar easily tilts out of the way when user performs dips
  •  Knee pad can be locked down for unassisted chin-ups, pull-ups and dips


You really have to experience the Nitro® Plus fitness equipment engineering advantage to understand just how radical a difference there is between their Gravitron machine and other similar strength equipment. During any exercise, an individual’s strength varies at different points. Other weight machines don’t even attempt to address this strength curve — instead, the weight remains constant from beginning to end. For the user, this can limit muscle recruitment and overall performance.


This unique technology is cutting edge. Driven by their trademark four-bar linkage system, cam design, or a combination of both, this dynamically matches the body’s potential increases and decreases in strength. 


With Nitro® Plus Gravitron machines, clients get immediate, smooth resistance and proper muscle loading through the complete range of motion. The converging press arms on this line of fitness equipment provide the correct way to work out, leading to unprecedented results. The alternative strength training machine designs force the user to follow an incorrect path or motion. Additionally, the independent converging press arms also ensure greater joint rotation for increased muscle contraction.


  • 12 years: Frames, welded moving parts and weight stacks.
  • 3 years: For any moving parts and parts under normal use and service, not already disclosed by this warranty.
  • 1 year: Labor warranty.
  • 6 months: Pads, grips and tethered weight stack pins.
Better results from the proper biomechanical movement is what your members will find in the Gravitron machine from the Nitro Plus line of Nautilus fitness equipment.
Nautilus Nitro Plus Gravitron Specifications