1. ABERTURA ACIONADA POR PAINPOINT

Are your aggregate production targets consistently derailed by inconsistent feed material from your Lagos quarry site? For commercial quarry operators and exporters, managing the primary crushing stage is a critical bottleneck that directly impacts profitability. Os desafios comuns incluem:
Tempo de inatividade excessivo: Frequent blockages and bridging in the primary crusher feed hopper, leading to hours of lost production per week for cleaning and reestablishing flow.
Altos custos de manutenção: Uncontrolled, oversized material entering the primary crusher causes undue stress on components, resulting in premature wear on liners, rolamentos, and shafts.
Taxa de transferência inconsistente: Variable feed size from the face leads to a choked or starved crusher, preventing your plant from operating at its designed capacity and efficiency.
Safety and Labor Risks: Manual methods to clear blockages or break oversize rock expose personnel to significant hazard.

How do you ensure a consistent, optimallysized feed to your primary jaw crusher that maximizes uptime, protects your capital equipment, and stabilizes your output for exportgrade aggregate specifications?

2. VISÃO GERAL DO PRODUTO: APG4216 VIBRATING GRIZZLY FEEDER (VGF VGF)

The APG4216 is a heavyduty Vibrating Grizzly Feeder (VGF VGF) engineered for the primary separation and feeding of runofquarry material in Lagos's demanding laterite and granite operations. It is the definitive solution for preparing material before the primary crusher.

Fluxo de Trabalho Operacional:
1. Receiving & Pré-triagem: Dump trucks discharge raw quarry run onto the robust feeder pan. The integral grizzly section (with adjustable openings) allows subfines (por exemplo, 100milímetros) to bypass the crusher, reducing immediate load.
2. Separação & Transporte: The vibrating action conveys larger material forward while simultaneously stratifying the load.
3. Controlled Feeding: Oversize rock is smoothly delivered at a regulated rate into the jaw crusher inlet, ensuring it operates within its optimal design parameters without shock loading or starvation.

Escopo de aplicação & Limitações:
Escopo: Ideal for mediumtohigh tonnage quarry primary sections; handles blasted rock, heavy claybound materials, e concreto de demolição. Suited for both fixed plant and semimobile setups common in Lagos export operations.
Limitações: Not designed as a standalone screening plant for precise final product sizing. Maximum lump size is limited by physical deck dimensions; extremely sticky, highmoisture clay without preprocessing can reduce efficiency.

3. RECURSOS PRINCIPAIS

Construção de convés para serviços pesados | Base Técnica: Highstrength steel plate with boltin AR400 liners | Benefício Operacional: Withstands direct impact from large blasted rock with minimal deformation or wear | Impacto do ROI: Reduces replacement deck costs by up to 40% over standard plate, extending service life.

Adjustable Grizzly Bars | Base Técnica: Individually mounted, replaceable manganese steel bars with variable spacing | Benefício Operacional: Allows operators to set optimal bypass size (por exemplo, 80150milímetros) to match crusher settings and material type | Impacto do ROI: Increases effective crusher throughput by removing fines, directly lowering costpertonne crushed.

Dual Shaft Vibrator Mechanism | Base Técnica: Two synchronized eccentric shafts generating a linear stroke | Benefício Operacional: Provides positive material propulsion even under headloads; minimizes plugging in wet conditions | Impacto do ROI: Os dados de campo mostram um 25% reduction in feedrelated downtime compared to single shaft designs.

Acionamento de velocidade variável (VFD) Controlar | Base Técnica: Integrated motor controller regulating vibrator amplitude/feed rate | Benefício Operacional: Enables realtime tuning of feed rate from the control panel to match downstream crusher performance | Impacto do ROI: Optimizes plant balance, preventing crusher overload and improving power efficiency across the circuit.

BoltTogether Modular Design | Base Técnica: Preengineered subassemblies for core structure | Benefício Operacional: Simplifies transport through Lagos ports and onsite assembly with standard tools | Impacto do ROI: Cuts installation time and cost by approximately 30%, accelerating commissioning for export projects.

Centralized Greasing Points | Base Técnica: Labyrinthsealed bearing housings with accessible grease nipples | Benefício Operacional: Permite segurança, routine maintenance without disassembly during scheduled stops | Impacto do ROI: Extends vibrator bearing life expectancy beyond 12,000 hours under typical quarry conditions.

4. VANTAGENS COMPETITIVAS

| Métrica de desempenho | Solução padrão da indústria | APG4216 VGF Solution | Vantagem (% Melhoria) |
| : | : | : | : |
| Disponibilidade / Tempo de atividade | Static grizzly with excavator assist for blockages | Continuous vibrating action with controlled feed rate. No stoppages for bridging. | +18% Crusher Utilization |
| Wear Part Cost per Tonne| Standard carbon steel deck liners requiring annual replacement| Boltin AR400 liners on critical impact zones with 3year typical life cycle| 35% Annual Liner Cost |
| Feed Rate Consistency| Manual excavator feeding or fixedrate apron feeder| VFDcontrolled vibration allows +/ 10% feed rate adjustment onthefly| Delivers +95% Crusher Feed Consistency |
| Fines Removal Efficiency| Minimal prescreening leading to crusher cavity packing| Adjustable grizzly section removes defined fines prior to crushing| Reduces Crusher Load by 1525% |

5. ESPECIFICAÇÕES TÉCNICAS

Modelo: APG4216 Vibrating Grizzly Feeder
Classificação de capacidade: Até 600 toneladas por hora (TPH), depending on material density and grizzly setting.
Grizzly Section: 4.2m long x 1.6m wide; 9 individually adjustable bars; standard opening range 80mm 150mm.
Deck Pan Length: 3.0m following grizzly section.
Total Power Requirement: 30 kW electric motor with IP66 protection rating.
Vibration Mechanism: Twin shaft, fourbearing system; stroke adjustable between 812mm.
Construção: Main frame fabricated Hbeams; Deck 20mm thick base plate with bolton wear liners.
Dimensões Físicas (CxLxA): Aprox.. 8.5m x 2.4m x 1.8m.
Faixa operacional ambiental: Designed for ambient temperatures of 15°C to 45°C and high humidity conditions typical of Lagos.

6. CENÁRIOS DE APLICAÇÃO

Granite Quarry Primary Crushing Station Upgrade

Challenge A granite quarry supplying aggregates for export concrete piles faced constant jaw crusher overload due to uncontrolled feed from dump trucks, causing tramp iron damage and unplanned stops every two weeks.
Solution Installation of an APG4216 VGF with grizzly set at 120mm was implemented as a buffer between truck tipping and the jaw crusher inlet.
Results The system removed an average of 22% fine waste rock prior to crushing. Crusher overload events were eliminated, liner life increased by 50%, and overall plant throughput rose by a verified 19%.

Laterite Processing Plant Efficiency Improvement

Challenge A laterite processing plant experienced severe blockages in their primary circuit during the rainy season due to sticky clay binding in the feeder hopper.
Solution The APG4216 was selected for its aggressive linear stroke capable of breaking up cohesive materials via vibration energy transfer through the bed depth.
Results Plant managers reported zero complete blockages postinstallation during wet season operations through two cycles.Feed consistency improved,supporting stable operation of downstream washing screens.

7.CONSIDERAÇÕES COMERCIAIS

Equipment pricing is structured around configuration:
Nível 1 Base Model APG 4216 includes standard duty vibrators,motor starter,and manual greasing points
Nível 2 Production Model adds Variable Frequency Drive VFD ,centralized auto lube system,and abrasion resistant AR400 liner kit
Nível 3 Severe Duty Model includes all above plus extra heavy duty shaft assemblies,kits de vedação contra poeira,and polyurethane side liners

Recursos opcionais incluem:
Rock box extension hoppers
Dust suppression spray bars
Radio remote control for start stop
Spare parts kits bearing sets,grizzly bars

Service Packages available:
Standard warranty covering parts defects
Extended performance assurance plan including scheduled inspections
Full maintenance contract covering all wear parts labor

Financing Options tailored for commercial buyers include equipment leasing structures,trade in programs for existing feeders,and project based financing aligned with export contract milestones

8.Perguntas frequentes

Q Can this feeder be integrated into my existing primary crushing setup designed around an excavator fed hopper?
A Yes.The modular design allows it be fitted ahead most jaw or gyratory crushers replacing static receiving hoppers Engineering drawings are required ensure proper interface geometry load support

Q What is expected power consumption impact adding this unit my plant?
A The unit operates on kW motor Under full load typical additional energy cost per tonne processed is negligible compared gains overall circuit efficiency reduced downstream crusher power draw

Q How does handle very wet sticky material common during rainy season?
A The dual shaft mechanism generates high G force linear stroke proven break cohesion clays For extreme conditions optional polyurethane deck covers reduce adhesion further

Q What are lead times delivery installation support within Lagos Ogun state region?
A Standard units are available within weeks from regional stock Technical supervisors available oversee commissioning ensure correct operational setup

Q Are spare parts readily available locally avoid long import delays?
A Critical wear parts like grizzly bars deck liners standardized vibrator bearings stocked local distributor network Guaranteed availability key components