25 marquee operators · 21 countries · verified roster
Bayer · Pfizer · TATA · Adani · JSW · ISRO · Siemens · Bosch · DuPont · Mahindra · Hindalco · and others
Load-haul-dump cycles, hoisting capacity and ventilation limits modelled together.
Underground production is set by the slowest link in a chain that changes every shift · LHD tramming distance, truck queuing at the dump pocket, skip hoisting capacity, and the ventilation envelope that caps how much diesel equipment can work a level at once. We model the whole cycle in FlexSim so a fleet or development decision is tested before it is funded.
A spreadsheet can give you a cycle time. It cannot tell you what happens when two LHDs share a decline, when the ore pass is full, or when the crusher is down and trucks queue at the tip. Underground haulage is a system of interacting queues with variable travel times, and its throughput is dominated by interference rather than by average speed. That is why fleet additions so often fail to deliver the tonnes the business case promised · the extra truck spends its shift waiting. Simulation exposes where the constraint actually sits: tramming distance, pocket capacity, hoisting availability, or the ventilation limit on the number of diesel units permitted underground at once.
CEng MIE India-signed deliverables · LiDAR-powered where applicable · digital twin handover ready · routes to the Discrete Event Simulation practice lead within 24 hours.
Level plans, decline profile, ore pass and tip locations, and the current fleet loaded into the model. Cycle data taken from your dispatch system where available · loading, tramming, spotting, dumping and travel-empty times distributed rather than averaged.
LHDs, haul trucks, and where relevant shaft hoisting and conveyor transport, modelled with their real availability, payload and speed-on-grade characteristics. Operator shift change, refuelling and planned maintenance windows included, because they move the answer.
Model run across the production plan to locate the binding constraint by shift and by level. Queueing at the dump pocket, decline interference, ore pass availability, hoisting capacity and ventilation limits assessed as competing candidates rather than assumed.
Fleet size and mix, additional passing bays, ore pass capacity, tip configuration, shift roster and haulage-versus-conveyor options run as scenarios. Each returns tonnes per shift with a confidence range, not a single number.
Animated model, scenario comparison and a written recommendation with the tonnage and capital consequence of each option. Model handed over so your planning team can re-run it as the mine advances.
Reports reference the international and national standards your regulators, F500 audit teams, and corporate process safety leads cite. Every deliverable signed by a Chartered Engineer (CEng MIE India).
Three landmark engagements from our verified roster · quantified outcomes, no client names disclosed without written permission.
Proposed three additional trucks tested before purchase. Model showed the binding constraint was ore pass capacity, not fleet size · two trucks would have queued. Pass upgrade funded instead at a fraction of the fleet capital.
Haulage and hoisting modelled together. Skip cycle, not truck availability, capped production for 14 shifts a month. Schedule rebalanced to buffer ore at the tip ahead of the hoisting window.
Single-decline traffic modelled with passing bays at three candidate positions. The chosen position returned a measurable cycle-time reduction against the base case for a modest civil spend.
Tell us your plant, region, and scope · a named Chartered Engineer responds within 24 hours.