Our Services

At TUNRA Bulk Solids, we complete between 200 and 250 major consultancy projects each year which cover the entire spectrum of bulk solids handling and storage applications. We are leaders in providing conceptual solutions to any bulk materials related task or problem that may occur in your plant.

Our comprehensive laboratory test facilities and our highly qualified and committed team of engineers and consultants assist you to overcome existing handling problems and to plan new projects to ensure future trouble-free plant operation.

A brief summary of the services offered by TBS is given on this page and the subsequent ones.

Should you require any further information about a specific service or if you want to make an enquiry, please contact us directly or use our contact form.

  • Materials Testing
  • Storage, Flow & Handling Consultancy
  • Storage Systems Conceptual Design

Flow Properties Testing

  • Determination of Worst Case Moisture Content

  • Transportable Moisture Limit (TML)

  • Low Consolidation Testing

  • High Consolidation Testing

  • Testing with undisturbed Storage Time

  • Testing with vibrated Storage Time

  • Wall Friction Testing

  • Bulk Density / Compressibility Testing

  • Particle Size Distribution Analysis

  • Static Angle of Repose

  • Dynamic Impact Adhesion & Build-Up

  • Chute Drop Test

Dust (Environmental) Testing

  • Fines Dust Extinction Moisture (DEM) Testing (- 6.3mm)

  • Lump Dust Extinction Moisture Testing (+ 6.3mm)

  • Wind Tunnel Dust Lift-Off

  • Stockpile Material/Dust Lift-Off

  • Stockpile Veneer Treatment Efficiency Testing

Abrasion, Erosion, Attrition Testing

  • Wall Liner Abrasion

  • Wear Liner Lifetime Estimates

  • Wear Liner Comparison

  • Erosion Testing (ASTM 76)

  • Slurry Wear Tests

  • Drop Shatter Tests

Conveyor Belt & Conveyor Accessories Testing

  • Belt Testing according to AS 1332-1334, 1683

  • Conveyor Surcharge Angles

  • Maximum Conveyor Inclination Angles

  • Indentation Rolling Resistance Measurement

  • Motion Resistance Measurements

  • Idler Roll Testing

  • Rim Drag

  • Noise Level

  • Breakaway, TIR and Dynamic Imbalance Testing

  • Testing of Pulley Lagging

  • Testing of Conveyor Belt Cleaning Systems

Pneumatic Conveying Equipment Testing

  • Fluidisation, De-Aeration and Air-Retention

  • Wear Mechanisms Analysis for Critical Service Life limiting Components and Sections

  • Assessment for Dense Phase Conveying

  • Flow Mode Visualisation

  • Full Scale Conveying Testing

Hydraulic Conveying Equipment Testing

  • Determination of Shear Viscosity using Rotational Viscometer

  • Evaluation of Pumping Characteristics

  • Malvern Dispersed Particle Size Distribution

  • SEM Particle Size and Shape Evaluation

Materials Testing and Characterisation

  • Testing of Materials according to Standard specifications

  • Selection of Materials for specific Application through

    • Destructive Testing

      • Tensile Tests

      • Shear Tests

      • Fatigue Tests

    • Non-destructive Testing

      • SEM-Analysis

      • Ultrasound Thickness Measurements

- Back to the top -

Bin Design

  • Effective hopper geometry and choice of wall liners to obtain mass flow

  • Multi-outlet bins and eccentric loading/discharge

  • Investigate potential silo quaking

  • Wall pressure and relative wear calculations

Transfer Chutes

  • Design Audits & Reviews

Feeders

  • Apron & Belt Feeder Loads Calculations

  • Screw Torque & Feed Rate Calculations

Belt Conveying

  • Design Reviews

  • Audits of New & Existing Systems

  • Motion Resistance Calculations

  • Optimisation for Overland Conveyors

  • Evaluation of Belt Cleaning Systems

  • Contract Research

Hydraulic Conveying

  • Evaluation of Slurry Transport Systems

  • Shear Stress & Shear Rate Interpretations

  • Slurry Pipeline Prediction

Pneumatic Conveying

  • Scale Modelling

  • Pressure Drop Predictions

  • Pneumatic Conveying Characteristics

  • Selection of appropriate Liner for maximising Service Life

  • Process Optimisation for Minimising Wear & Maximising Service Life based on Wear

Mechanical Handling Systems

  • Screw Conveyors

  • Bucket Elevators

  • Augers

  • Tube-Chain Conveyors

  • Stockpile Reclaimers

Transport Load-Out Systems

Numerical Simulation

  • Discrete Element Modelling (DEM)

  • Computational Fluid Dynamics (CFD)

  • Finite Element Modelling (FEM)

Instrumentation

  • Strain Gauging

  • Load Cell Manufacture

  • Frequency Mode Analysis

  • Fatigue Testing

  • Dust Monitoring

General Materials Handling Audit

Seminars & On-site Training

Site Visits

Expert Witness

- Back to the top -

Bin & Hopper Design

  • Mass-Flow & Funnel-Flow Bin Design

Stockpile Design

  • Gravity reclaim stockpile draw-down volume calculations

  • Gravity reclaim stockpile live capacity optimisation with regards to number of feeders, size and location

Feeder Design

  • Screw Feeder Design Advice

  • Effective feeder hopper design and choice of wall liners to obtain mass flow

  • Optimise feeder interfacing to ensure even draw-down and minimise build-up

  • Feeder vertical and pull-out load calculations

  • Feeder volume calculations

Transfer Chutes

  • Design Audits

  • Wear & Flow Design Optimisations

Review of Existing and New Designs