crushing-and-screening Archives

1 December 20257 September 2026

Hard Rock Processing Plant Engineering & 3D Laser Scanning

Pencil drawing of a hard-rock processing plant showing crushing, screening, milling, slurry handling, 3D laser scanning and CAD fit-checking.

Mechanical, Structural & Digital Engineering Support for Crushing, Milling & Conveying

Hard rock processing plants work hard – high loads, extreme abrasion, constant vibration and tight production targets. When something doesn’t fit, breaks or wears out too fast, the cost in lost tonnes adds up quickly.

Hamilton By Design supports gold, copper, zinc, lead, nickel, lithium and iron ore operations with a combination of:

3D laser scanning (LiDAR) & point cloud capture
3D modelling & drafting (SolidWorks / CAD)
Mechanical & structural engineering
Digital QA & fit-checking before shutdowns

Our goal is simple:
Your upgrades fit first time, run reliably, and are backed by accurate data.

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What We Do at Hard Rock Processing Plants

We support site-based engineering, maintenance and project teams with practical, fabrication-ready outcomes.

1. 3D Laser Scanning & As-Built Modelling

We use high-accuracy 3D laser scanners to capture:

Crusher stations (primary, secondary, tertiary)
SAG & ball mill areas
Screen decks & screen houses
Feed bins, hoppers & chutes
Conveyors, transfer towers & galleries
Pump skids, slurry lines & cyclones
Thickener tanks, drives and surrounds

Deliverables:

Registered point clouds
Clean, usable 3D models
Updated layouts and GA drawings
As-built documentation for future projects

Accurate measurement is the foundation for every successful upgrade.

2. Mechanical Engineering for Crushing & Grinding Circuits

We assist mechanical engineers and project teams with:

Crusher upgrades (jaw, cone, gyratory)
SAG and ball mill component changes
Feed chute redesigns and access improvements
Screen and feeder modifications
Pump and slurry pipeline changes
Drive, gearbox and motor layout adjustments

We turn your concepts, plant issues and improvement ideas into 3D models, drawings and engineering deliverables that fabricators and installers can rely on.

3. Structural Engineering & Access Improvements

Hard rock plants generate heavy dynamic loads and vibration. We provide:

Structural assessments around crushers, mills and screens
Strengthening and modification of support steelwork
New access walkways, stairs and platforms
Upgraded supports for new or heavier equipment
Verification of supports for screens, feeders and drives

Outputs include 3D models, structural drawings and engineering calculations suitable for site approval and fabrication.

4. Wear Management, Chutes & Liner Design

Wear is inevitable – but how you manage it is critical.

We help improve reliability and reduce downtime by:

Redesigning chutes and hoppers for smoother flow
Optimising liner layouts (rubber, ceramic, steel, composite)
Improving feed presentation to crushers and mills
Adjusting drop heights, impact angles and impact zones
Reducing spillage, build-up and blockages

All designs are created in 3D against accurate scan data, so your new liners and chutes fit first time.

5. Shutdown Planning, Digital QA & Fit-Checking

Shutdowns are expensive and stressful – especially if something doesn’t fit.

Hamilton By Design supports shutdowns with:

Pre-shutdown 3D scanning of the work area
Digital fit-checks of new components against the point cloud
Clash detection for new chutes, structures and equipment
Fabrication-ready drawings with clear tolerances
On-call engineering support during installation
Updated as-built models and drawings afterwards

This approach reduces rework, cuts time on the tools and improves shutdown predictability.

6. Failure Investigation & Root Cause

When equipment fails, we help you understand why and what to change:

Cracked screen decks and frames
Broken chute structures
Worn-through liners and hoppers
Pump, gearbox and drive failures
Misalignment and vibration-related issues
Repeated seal, bearing or coupling failures

We combine site observations, 3D modelling and engineering analysis to recommend practical, long-term solutions.

7. Reliability & Continuous Improvement Support

For sites working on long-term performance and reliability, we can assist with:

Measurement and modelling for debottlenecking projects
Layout optimisation for future upgrades
Standardisation of chute, support and access designs
Better documentation for repeatable work packs and scopes
Digital records (models/drawings) you can reuse across multiple projects

Our role is to add engineering and digital capability to the team you already have on site.

How We Work With Your Team

Hamilton By Design is set up to support:

Site mechanical and structural engineers
Reliability engineers and planners
Project and shutdown managers
Fabrication shops and drafting teams
OEMs and service providers needing accurate site data

A typical engagement looks like:

Define the problem or upgrade
– e.g. new chute, mill feed change, crusher access, conveyor transfer change.
Scan the area
– capture the plant using 3D laser scanning to remove guesswork.
Develop 3D models & concepts
– mechanical/structural concepts developed directly on the point cloud.
Final design, drawings & engineering
– fully detailed fabrication drawings and engineering calculations.
Digital QA & shutdown support
– fit-check before fabrication; support installers during shutdown.
As-built update
– update models/drawings so your next project starts with accurate information.

Where We Work

Hamilton By Design supports hard rock operations and fabrication partners across Australia, including (but not limited to):

Queensland
New South Wales
Victoria
Northern Territory
Remote mining hubs and regional processing plants

We can work directly with site teams or through your preferred fabrication and maintenance contractors.

Ready to Talk About Your Plant?

If you’re planning:

A crusher, mill or screen upgrade
A new chute, hopper or transfer
Access and structural improvements
A shutdown that must go right the first time
Better, more reliable measurement and documentation

Hamilton By Design can help you measure, model and engineer the solution.

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3 October 202513 September 2026

Coal Chute Design

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A Systems Engineering Approach for Reliable Coal Handling

In coal mining operations, transfer chutes play a deceptively small role with disproportionately large impacts. They sit quietly between conveyors, crushers, and stockpiles, directing tonnes of coal every hour. Yet when a chute is poorly designed or not maintained, the whole coal handling system suffers: blockages stop production, dust creates safety and environmental hazards, and worn liners demand costly maintenance shutdowns.

At Hamilton by Design, we believe coal chute design should be treated not as a piece of steelwork, but as a systems engineering challenge. By applying systems thinking, we connect stakeholder requirements, material behaviour, environmental factors, and lifecycle performance into a holistic design approach that delivers long-term value for mining operations in the Hunter Valley and beyond.

Coal Chutes in the Mining Value Chain

Coal chutes form the links in a chain of bulk material handling equipment:

ROM bins and crushers feed coal into the system.
Conveyors carry coal across site, often over long distances.
Transfer chutes guide coal between conveyors or onto stockpiles.
Load-out stations deliver coal to trains or ports for export.

Although they are small compared to conveyors or crushers, coal chutes are often where problems first appear. A well-designed chute keeps coal flowing consistently; a poorly designed one causes buildup, spillage, dust emissions, and accelerated wear. That’s why leading operators now see chute design as a critical system integration problem rather than just a fabrication task.

Flow diagram of a coal chute system showing upstream and downstream conveyors, the transfer chute, stakeholder interactions, and main issues such as blockages, dust, wear, maintenance safety, and cost versus performance

Systems Engineering in Coal Chute Design

Systems engineering is the discipline of managing complexity in engineering projects. It recognises that every component is part of a bigger system, with interdependencies and trade-offs. Applying this mindset to coal chute design ensures that each chute is considered not in isolation, but as part of the broader coal handling plant.

1. Requirements Analysis

The first step is gathering and analysing stakeholder and system requirements:

Throughput capacity: e.g. handling 4,000 tonnes per hour of coal.
Material properties: coal size distribution, moisture content, abrasiveness, stickiness.
Safety requirements: compliance with AS/NZS 4024 conveyor safety standards, confined space entry protocols, guarding, and interlocks.
Environmental compliance: dust, noise, and spillage limits.
Maintenance objectives: target liner life (e.g. 6 months), maximum downtime per liner change (e.g. 30 minutes with two workers).

A structured requirements phase reduces the risk of costly redesign later in the project.

2. System Design and Integration

Once requirements are defined, the design process considers how the chute integrates into the coal handling system:

Flow optimisation using DEM: Discrete Element Modelling allows engineers to simulate coal particle behaviour, test different geometries, and reduce blockages before steel is ever cut.
Dust control strategies: designing chutes with enclosures, sprays, and extraction ports to minimise airborne dust.
Wear management: predicting wear zones, selecting suitable liner materials (ceramic, Bisplate, rubber composites), and ensuring easy access for replacement.
Structural and safety design: ensuring the chute can withstand dynamic loads, vibration, and impact, while providing safe access platforms and guarding.
Interfaces with conveyors and crushers: alignment, skirt seals, trip circuits, and integration with PLC/SCADA control systems.

By treating the chute as a subsystem with multiple interfaces, designers avoid the “bolt-on” mentality that often leads to operational headaches.

3. Verification and Validation

The systems engineering V-model reminds us that every requirement must be verified and validated:

Component verification: weld inspections, liner hardness testing, nozzle spray checks.
Subsystem verification: chute section fit-up, guard gap measurements, coating checks.
Integration testing: conveyor-chute alignment, PLC spray interlocks, trip circuits.
System validation: commissioning with live coal flow, dust monitoring against limits, maintainability time trials for liner change.

By linking requirements directly to tests in a traceability matrix, operators can be confident that the chute is not only built to spec, but proven in operation.

Lifecycle Engineering: Beyond Installation

Good chute design doesn’t stop at commissioning. A lifecycle engineering mindset ensures the chute continues to deliver performance over years of operation.

Maintainability: modular liners, captive fasteners, hinged access doors, and clear procedures reduce downtime and improve worker safety.
Reliability: DEM-informed designs and wear-resistant materials reduce the frequency of blockages and rebuilds.
Sustainability: dust suppression and enclosure strategies reduce environmental impact and support community and regulatory compliance.
Continuous improvement: feedback loops from operators and maintenance teams feed into the next design iteration, closing the systems engineering cycle.

A Rich Picture of Coal Chute Complexity

Visualising the coal chute system as a rich picture reveals its complexity:

Operators monitoring flow from control rooms.
Maintenance crews working in confined spaces, replacing liners.
Design engineers using DEM simulations to model coal flow.
Fabricators welding heavy plate sections on site.
Environmental officers measuring dust levels near transfer points.
Regulators and community monitoring compliance.

This web of relationships shows why coal chute design benefits from systems thinking. No single stakeholder sees the whole picture—but systems engineering does.

Benefits of a Systems Engineering Approach

When coal chute design is guided by systems engineering principles, operators gain:

Higher reliability: smoother coal flow with fewer blockages.
Lower maintenance costs: liners that last longer and can be swapped quickly.
Improved compliance: dust, spillage, and safety issues designed out, not patched later.
Lifecycle value: less unplanned downtime and a lower total cost of ownership.

In short, systems engineering transforms coal chutes from weak links into strong connectors in the mining value chain.

Case Study: Hunter Valley Context

In the Hunter Valley, coal mines have long struggled with transfer chute problems. Companies like T.W. Woods, Chute Technology, HIC Services, and TUNRA Bulk Solids have all demonstrated the value of combining local fabrication expertise with advanced design tools. Hamilton by Design builds on this ecosystem by applying structured systems engineering methods, ensuring each chute project balances performance, safety, cost, and sustainability.

Conclusion

Coal chute design might seem like a small detail, but in mining, details matter. When transfer chutes fail, production stops. By applying systems engineering principles—from requirements analysis and DEM modelling to verification, lifecycle planning, and continuous improvement—we can design coal chutes that are reliable, maintainable, and compliant.

At Hamilton by Design, we believe in tackling these challenges with a systems mindset, delivering solutions that stand up to the realities of coal mining.

Are you struggling with coal chute blockages, dust, or costly downtime in your coal handling system?

Contact Hamilton by Design today and discover how our systems engineering expertise in coal chute design can optimise your mining operations for performance, safety, and sustainability.

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20 September 202513 September 2026

Chute Design in the Mining Industry

Infographic showing Hamilton By Design’s engineering workflow, including millimetre-accurate LiDAR reality capture, material-flow simulation, optimised chute designs, and safer, more efficient production outcomes. Two workers in PPE highlight reliable design and longer liner life, with icons representing time, cost and quality benefits.

Getting Coal, Hard Rock, and ROM Material Flow Right

Chute design is one of the most critical yet challenging aspects of mining and mineral processing. Whether you are handling coal, hard rock ore, or raw ROM material, chutes and transfer stations are the unsung workhorses of every operation. When designed well, they guide material smoothly, minimise wear, and keep conveyors running. When designed poorly, they cause blockages, spillage, excessive dust, and expensive downtime.

Modern chute design has moved far beyond rules of thumb and back-of-the-envelope sketches. Today, successful projects rely on accurate as-built data, particle trajectory analysis, and advanced Discrete Element Method (DEM) simulation to predict, visualise, and optimise material flow before steel is cut. In this article, we explore why these tools have become essential, how they work together, and where software can — and cannot — replace engineering judgement.

Illustration showing common problems with poorly designed material-handling chutes. A chute discharges material onto a conveyor while issues are highlighted around it: unpredictable material flow, material spillage, maintenance challenges, high wear, blockages, and dust and noise. Warning icons for downtime and cost appear on the conveyor, and workers are shown dealing with the resulting hazards and maintenance tasks.

The Challenge of Chute Design

Coal and hard rock have very different flow behaviours. Coal tends to be softer, generate more dust, and be prone to degradation, while hard rock is more abrasive and can damage chutes if impact angles are not controlled. ROM material adds another level of complexity — oversize lumps, fines, and moisture variation can cause hang-ups or uneven flow.

Chute design must balance several competing objectives:

Control the trajectory of incoming material to reduce impact and wear
Prevent blockages by maintaining flowability, even with wet or sticky ore
Manage dust and noise to meet environmental and workplace health requirements
Fit within existing plant space with minimal modification to conveyors and structures
Be maintainable — liners must be accessible and replaceable without excessive downtime

Meeting all these goals without accurate data and simulation is like trying to design in the dark.

Illustrated graphic showing a tripod-mounted 3D laser scanner capturing millimetre-accurate as-built data in an industrial plant with conveyors and walkways. Speech bubbles highlight issues such as “Outdated drawings don’t tell the full story” and “Modifications rarely get documented.” The scan data is shown being visualised on a laptop, with notes describing full coverage of conveyors, walkways, and services. Benefits listed along the bottom include faster data collection, fewer site revisits, safer shutdowns, accurate starting point for design simulation, and safer outcomes that ensure designs fit first time.

Capturing the Truth with 3D Scanning

The first step in any successful chute project is to understand the as-built environment. In many operations, drawings are outdated, modifications have been made over the years, and the real plant geometry may differ from what is on paper. Manual measurement is slow, risky, and often incomplete.

This is where 3D laser scanning changes the game. Using tripod-mounted or mobile LiDAR scanners, engineers can capture the entire transfer station, conveyors, surrounding steelwork, and services in a matter of hours. The result is a dense point cloud with millimetre accuracy that reflects the true state of the plant.

From here, the point cloud is cleaned and converted into a 3D model. This ensures the new chute design will not clash with existing structures, and that all clearances are known. It also allows maintenance teams to plan safe access for liner change-outs and other work, as the scanned model can be navigated virtually to check reach and access envelopes.

Understanding Particle Trajectory

Once the physical environment is known, the next challenge is to understand the particle trajectory — the path that material takes as it leaves the head pulley or previous transfer point.

Trajectory depends on belt speed, material characteristics, and discharge angle. For coal, fine particles may spread wider than the coarse fraction, while for ROM ore, large lumps may follow a ballistic path that needs to be controlled to prevent impact damage.

Accurately modelling trajectory ensures that the material enters the chute in the right location and direction. This minimises impact forces, reducing wear on liners and avoiding the “splash” that creates spillage and dust. It also prevents the material from hitting obstructions or dead zones that could lead to build-up and blockages.

Modern software can plot the trajectory curve for different loading conditions, providing a starting point for chute geometry. This is a critical step — if the trajectory is wrong, the chute design will be fighting against the natural path of the material.

The Power of DEM Simulation

While trajectory gives a first approximation, real-world flow is far more complex. This is where Discrete Element Method (DEM) simulation comes into play. DEM models represent bulk material as thousands (or millions) of individual particles, each following the laws of motion and interacting with one another.

When a DEM simulation is run on a chute design:

You can visualise material flow in 3D, watching how particles accelerate, collide, and settle
Impact zones become clear, showing where liners will wear fastest
Areas of turbulence, dust generation, or segregation are identified
Build-up points and potential blockages are predicted

This allows engineers to experiment with chute geometry before fabrication. Angles can be changed, ledges removed, and flow-aiding features like hood and spoon profiles or rock-boxes optimised to achieve smooth, controlled flow.

For coal, DEM can help ensure material lands gently on the receiving belt, reducing degradation and dust. For hard rock, it can ensure that the energy of impact is directed onto replaceable wear liners rather than structural plate. For ROM ore, it can help prevent oversize lumps from wedging in critical locations.

Illustration of an optimised chute design showing material flow represented by green particles, with check marks and gear icons indicating improved efficiency and engineered performance.

🖥 Strengths and Limitations of Software

Modern DEM packages are powerful, but they are not magic. Software such as EDEM, Rocky DEM, or Altair’s tools can simulate a wide range of materials and geometries, but they rely on good input data and skilled interpretation.

Key strengths include:

Ability to model complex, 3D geometries and particle interactions
High visualisation power for communicating designs to stakeholders
Capability to run multiple scenarios (different feed rates, moisture contents, ore types) quickly

However, there are limitations:

Material calibration is critical. If the particle shape, friction, and cohesion parameters are wrong, the results will not match reality.
Computational cost can be high — detailed simulations of large chutes with millions of particles may take hours or days to run.
Engineering judgement is still needed. Software will not tell you the “best” design — it will only show how a proposed design behaves under given conditions.

That’s why DEM is best used as part of a holistic workflow that includes field data, trajectory analysis, and experienced design review.

From Model to Real-World Results

When the simulation results are validated and optimised, the design can be finalised. The point cloud model ensures the chute will fit in the available space, and the DEM results give confidence that it will perform as intended.

This means fabrication can proceed with fewer changes and less risk. During shutdown, installation goes smoothly, because clashes have already been resolved in the digital model. Once commissioned, the chute delivers predictable flow, less spillage, and longer liner life.

Why It Matters More Than Ever

Today’s mining operations face tighter production schedules, stricter environmental compliance, and increasing cost pressures. Downtime is expensive, and the margin for error is shrinking.

By combining 3D scanning, trajectory modelling, and DEM simulation, operations can move from reactive problem-solving to proactive improvement. Instead of waiting for blockages or failures, they can design out the problems before they occur, saving both time and money.

Partnering for Success

At Hamilton by Design, we specialise in turning raw site data into actionable insights. Our team uses advanced 3D scanning to capture your transfer stations with precision, builds accurate point clouds and CAD models, and runs calibrated DEM simulations to ensure your new chute design performs from day one.

Whether you’re working with coal, hard rock, or ROM ore, we help you deliver designs that fit first time, reduce maintenance headaches, and keep production running.

Contact us today to see how our integrated scanning and simulation workflow can make your next chute project safer, faster, and more reliable.

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9 September 202513 September 2026

Chute Design At Hamilton By Design

Coal plant shutdown engineering using a 3D laser scanner to capture conveyor and transfer chute infrastructure.

At Hamilton by Design, we believe that every bulk material transfer is an opportunity for improvement. What appears to be a simple flow of rock, coal, grain, or powder is, in reality, a particle physics problem waiting to be solved. By approaching these challenges with precision, creativity, and hands-on knowledge, we deliver chute designs that do more than move material — they protect assets, enhance performance, and improve the bottom line.

Infographic showing Hamilton By Design in a central blue circle with the text ‘Practical experience. Particle physics. Smarter transfer points.’ Surrounding circles highlight benefits: reduced dust, extended life, efficiency gains, quality preservation, and tailored solutions.

We are a small, specialised company with a wealth of on-site experience. Our engineers have spent years in the field, watching, listening, and learning how different materials behave under real conditions. This raw experience gives us a unique advantage: we can see and understand particle flow first-hand, not just through numbers on a screen. While many large organisations rely solely on computer models, we combine advanced simulation with practical insight, ensuring solutions that work not only in theory but also in practice.

Our team thrives on solving the complex problems others overlook:

Redirecting hard rock at speed without spillage or damage.
Handling sticky coal without blockages or hang-ups.
Containing fine powders without dust plumes or health risks.
Transferring fragile grains without breakage or product loss.
Extending chute, liner, and belt life with robust material-on-material flow designs.

We approach every challenge with the mindset that your success is our success. When your plant runs reliably, safely, and efficiently, we succeed alongside you. That’s why we design transfer points that:

Absorb and dissipate energy from high-impact lumps.
Control dust and minimise degradation for cleaner, safer operations.
Extend equipment life by reducing wear and maintenance.
Adapt to variability in feed size, flow, and moisture.
Boost throughput and availability by minimising stoppages.

In a world where margins are tight and environmental responsibility is critical, Hamilton by Design offers a personal, client-focused approach that puts performance and partnership at the centre. We are not a large organisation pushing generic solutions — we are a dedicated team that listens, observes, and engineers smarter outcomes, one particle physics problem at a time.