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Real mine conveying problems. Proven engineering solutions. Our specialists have resolved these exact issues in mines across 50+ countries.

Belt Mistracking Screen Blinding Material Spillage Belt Wear Chute Wear
CONVEYOR BELT PROBLEM

Belt Mistracking & Deviation

Solved: precision roller alignment + tracking idlers — edge damage & spillage eliminated

The Problem

A conveyor belt running off-center is one of the most common and costly problems in mine operations. It causes accelerated edge wear, material spillage along the entire conveyor length, structural frame damage, and in severe cases, complete belt destruction. Unplanned belt replacements from mistracking can cost $50,000–$500,000+ per incident.

Common Causes

  • Uneven loading — material not centered at the feed point
  • Misaligned idler rollers — even 1–2mm difference causes cumulative drift
  • Buildup of material on rollers creating uneven contact
  • Pulley misalignment or worn pulley lagging
  • Belt splice not straight — joint angle deviation causes continuous tracking issues

Our Solution

We supply precision-manufactured troughing idlers (ISO 1537) with tight dimensional tolerances that ensure consistent belt support across the full width. Our self-aligning training idlers detect belt deviation and automatically apply corrective force. Combined with properly centered loading chutes, rubber skirting, and correct take-up tension maintenance, belt mistracking is permanently resolved.

Products That Solve This

  • Self-Aligning Training Idlers
  • Precision Carrying Rollers (ISO 1537)
  • UHMWPE Impact Bars & Loading Chute Liners
  • Belt Skirting & Sealing Systems
  • Gravity Take-Up Frames
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POLYURETHANE SCREEN PROBLEM

Screen Panel Blinding & Clogging

Solved: self-cleaning PU panels restore screening efficiency to 90%+ and increase throughput 40%+

The Problem

Screen panel blinding occurs when wet, sticky, or near-aperture-size particles lodge in the screen openings. In mining operations with high moisture content — iron ore, copper ore, coal fines — blinding can reduce screening efficiency from 95% to below 20% within minutes, costing thousands of dollars per hour in lost production.

Common Causes

  • High moisture content (>8%) causing particles to stick to screen surface
  • Flat woven wire screens — particles wedge in fixed apertures permanently
  • Incorrect aperture selection — near-size particles get stuck
  • Insufficient screen vibration frequency or amplitude
  • Screen panel age — worn surfaces lose self-cleaning properties

Our Solution

Our polyurethane screen panels flex slightly with each vibration cycle, constantly changing the aperture shape and ejecting trapped particles — the self-cleaning effect. The PU surface is naturally slippery, preventing adhesion. We select aperture size 10–15% larger than target cut size to compensate for near-size particles. For extremely sticky materials, we supply specially designed anti-blinding panels with tapered apertures that widen from top to bottom.

Products That Solve This

  • Flat PU Screen Panels (Anti-Blinding Design)
  • Tensioned PU Screen Panels
  • Tapered Aperture Anti-Blinding Panels
  • PU Dewatering Screens
  • Vibrating Screen Side Liners
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TRANSFER POINT PROBLEM

Material Spillage at Loading & Transfer Points

Solved: impact bars + skirting systems eliminate spillage — housekeeping costs down 80%+

The Problem

Material spillage at conveyor loading zones and transfer points is a universal problem in bulk material handling. It creates unsafe walkways, clogs conveyor structures, causes premature belt wear from trapped material between belt and return rollers, and results in thousands of tonnes of lost product annually. In dusty environments it also creates serious air quality issues.

Common Causes

  • Oversized chutes with high drop heights creating impact and rebound
  • Missing or worn belt skirting allowing material to escape sideways
  • Belt mistracking at loading zone creating gaps between belt and skirting
  • Insufficient impact support — belt deflects downward under load
  • High belt speed combined with dry light material causing aerodynamic losses

Our Solution

We supply UHMWPE and rubber impact bars that support the belt at the loading zone, preventing downward deflection and material rebound. Our rubber skirting systems seal the belt sides across the full loading length. For high-drop transfer points, rock box chute liners slow the material before it contacts the belt. These solutions eliminate 95%+ of spillage.

Products That Solve This

  • UHMWPE Impact Bars
  • Rubber Skirting & Clamp Systems
  • Rubber Chute Liner Panels
  • PU Chute Liner Panels
  • Primary & Secondary Belt Scrapers
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CONVEYOR BELT PROBLEM

Premature Belt Wear — Sharp Abrasive Materials

Solved: Grade W abrasion-resistant belts last 3x longer — annual replacement cost cut 60%+

The Problem

Standard conveyor belts used for conveying sharp, angular, or highly abrasive materials like iron ore, granite, basalt, coke, and foundry slag wear out 3–5x faster than their rated service life. This leads to unplanned replacements, production shutdowns, and maintenance budgets far exceeding projections.

Common Causes

  • Using standard M-grade belts for materials with high abrasiveness index
  • Sharp angular particles from freshly crushed ore cutting into belt cover
  • High drop heights at loading points causing severe impact wear
  • Belt operating at incorrect tension — low tension causes cover cracking
  • Incorrect cover thickness selection — too thin for actual material load

Our Solution

Our high abrasion-resistant belts use a proprietary compound with wear loss ≤90mm³ (DIN 53516/ISO 4649) compared to 120–150mm³ for standard belts. With tensile strength ≥18MPa and elongation ≥400%, these belts absorb impact without cracking. We also recommend correct top cover thickness (6–20mm) and proper chute design to reduce drop height and material velocity at impact.

Products That Solve This

  • High Abrasion-Resistant Belt (Grade W, ≤90mm³ wear)
  • Steel Cord Belt for Heavy-Duty Applications
  • Impact Rollers at Loading Points
  • UHMWPE Impact Bars
  • Rock Box Rubber Chute Liners
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CHUTE & HOPPER PROBLEM

Rapid Wear of Steel Chutes & Hoppers

Solved: rubber/PU liner installation extends chute service life 5x — emergency shutdowns eliminated

The Problem

In high-tonnage ore processing, steel transfer chutes, hoppers, and bins can wear through in as little as 3–6 months when handling sharp, heavy ore. Emergency welding and plate replacement causes unplanned downtime and safety risks. Annual chute maintenance costs frequently reach six-figure sums for large operations.

Common Causes

  • Direct impact of falling ore on bare steel — no energy absorption layer
  • Sliding abrasion of ore moving across steep chute surfaces
  • Incorrect chute geometry causing high-velocity ore impact at wrong angle
  • Using only thin AR400/500 plate as sole wear protection
  • Hard rock with silica content >60% — extremely aggressive on steel

Our Solution

Installing rubber or polyurethane liner panels on all impact and wear surfaces transforms chute maintenance from emergency repairs to planned annual maintenance. Rubber liners (20–50mm thick) absorb impact energy through elasticity — they deform and recover rather than being cut through. PU liners (60–90 Shore A) offer superior performance in wet/slurry conditions and for sliding abrasion. We supply bolt-on liner kits custom-sized for your chute geometry.

Products That Solve This

  • Rubber Chute Liner Panels (20–50mm thick)
  • PU Chute Liner Panels (60–90 Shore A)
  • Rubber Impact Bars for Loading Zones
  • Crusher Rubber & PU Liners
  • Mill Liners (Rubber / PU)
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