GraviTrac® Series

Weighing Robot

Sirius GraviTrac® Weighing Robot with OMNI technology delivers fast and accurate weighing of labware ranging from minitubes to large containers i.e. 500mL Nalgene bottles. This robot also supports barcode-based or position-based labware sorting / cherry-picking.

Video example of GraviTrac® for a single container type.

Video example of GraviTrac® with Capping/UnCapping Operations.

Video example of GraviTrac® for multiple container types with automatic finger swap.

  • The Auto-Sampler to Your Analytical Balances
  • Fast (~10 secs roundtrip/piece)
  • Capping/UnCapping Options
  • Improves Data Quality with Process Consistency and Electronic Auditable History
  • Reliable Walkaway Operation
  • Best Use of Valuable Headcount

Key Functions

  • 0.1mg or 0.01mg Accuracy Weighing (Tare/Gross/Replicate Weights)
  • High-Speed Barcode Scanning with Rotating Gripper and Wingman® Scanner
  • 2D Matrix Barcode Reading for MiniTubes
  • Barcode-Based or Position-Based Sorting
  • Capping/UnCapping
  • Email Notifications (Start/Stop/Etc.)
  • Seamless LIMS Integration
  • Optional ToolSwap® Finger Changer to Handle Multiple Labware Types


  • Dimensions(inch): 48 W x 27 D x 41 H
  • Space Requirements(inch): 84 W x 36 D x 48 H
  • Weight (lb): ~100
  • Power: 120 - 240 VAC, 10A, 50/60 Hz
  • Air 4 bar (60 psi) / Vacuum: 380 mm Hg (15" Hg)
  • Operating Temperature: 14-35C
  • Humidity: 5-85%