Wheeled Crushing Plant for Granite in Benin - MAM

Introduction

As infrastructure development accelerates across West Africa, selecting right aggregate processing equipment is crucial for long-term project viability. 

When a customer in Parakou, Benin, found our engineering team, they needed a mobile wheeled crushing plant specifically designed for granite. It is capable of switching between seven different product sizes to serve road construction (BTP), real estate development, and general aggregate supply.

Below is the complete process of this project.

Wheeled Crushing Plant for Granite Project Introduction

Project Overview

• Location: Parakou, Benin
• Application: Road construction (BTP), real estate development, and aggregate supply
• Objective: Build an efficient, stable, and mobile granite crushing plant to meet local market's multiple demands for high-quality aggregate specifications.

Customer Requirements

• Raw material: Granite (high hardness, highly abrasive)
• Feed size: 0–500 mm
• Processing capacity: ≥60m³/h (about 90 TPH)
• Finished product specifications (multiple sizes): 0–5mm, 5–15mm, 15–25mm/6–10mm, 10–14mm/0–31.5mm/40–60mm

Correcting Initial Requirements

To ensure crusher reliability and structural safety, before finalizing the configuration, our engineers reviewed customer's original request and clarified three key technical points:

Point 1: Wear-part Metallurgy

Under standard MAM configuration, jaw crusher uses Manganese 13 (Mn13) for its wear parts. The cone crusher uses high-performance Manganese 18 (Mn18) to stand high abrasiveness of granite.

Point 2: Power System Integration

A mobile crusher comes with its power source fully integrated into machine. Unlike a stationary crushing plant, operators cannot separate and reassign power sources for individual components. (Related Post: Mobile vs stationary crushing plant >>)

This means mobile crusher plant cannot power its conveyor with solar energy. Solar energy also depends heavily on weather conditions and lacks stability, so it is not suitable for this industrial application.

Point 3: Output Sizes

Due to the large number of required output sizes, a single configuration cannot output seven different finished products at the same time. A standard 3-layer screen can produce three finished sizes and one return material size at one time. 

Therefore, we recommend custome uses different screen mesh sizes and exchange them out during different production cycles. This allows operators to get different output sizes and suit different market demands.

Mesh Configuration Examples:

To produce 0–5 mm, 5–15 mm, and 15–35 mm aggregates, install three screen meshes with openings of 5 mm, 15 mm, and 35 mm.

To produce 0–6 mm, 6–10 mm, and 10–14 mm aggregates, install three screen meshes with openings of 6 mm, 10 mm, and 14 mm.

To produce 0–31.5 mm and 40–60 mm aggregates, install three screen meshes with apertures of 31.5 mm, 40 mm, and 60 mm.

Wheeled-mounted Mobile Crushing Plant Overall Configuration

Recommended model: NKT100-4 wheeled-mounted crushing and screening plant

Equipment configuration:

• Vibrating feeder
• Jaw crusher (Primary crushing)
• Cone crusher (Secondary crushing) – hydraulic or spring cone crusher
• High-efficiency vibrating screen (Screening)
• 3 final product conveyor belts + 1 return conveyor belt

MAM standard configuration uses a hydraulic cone crusher, it applies inter-particle (laminated) crushing to produce a better particle shape than spring cone crusher. It also features a Siemens PLC intelligent control system.

The spring cone crusher costs less, but produces a lower-quality particle shape and makes adjusting discharge opening more difficult.

Wheeled Crushing Plant Process Flow Chart

1. Raw material feed (0–500 mm)
2. Vibrating feeder (pre-screening)
3. Jaw crushing (primary/coarse crushing)
4. Cone crushing (secondary/medium-fine crushing)
5. Vibrating screening (multi-layer screen with changeable mesh sizes)
6. Output multi-specification finished aggregate

Note: The configuration includes a return conveyor belt to support a closed-loop system. This system redirects oversized rocks back to cone crusher, ensuring same particle shape and stable output capacity.

Key Design Logic

Granite-specific solution (jaw crusher + cone crusher) advantages:

• It avoids rapid wear an impact crusher when crushing granite.
• It extends overall equipment lifespan.
• It maintains stable, continuous production.

Interchangeable screen advantages:

• One machine serves multiple product needs by just exchanging screens.
• Meet a wide range of customer specifications without additional equipment.
• Improve customers' competitive position in local market.

NKT100-4 Wheeled Crushing Plant Configuration Specifications

Notes:

1. The appearance color of vehicle can be customized according to customer requirements.

2. Total tonnage refers to weight of the entire mobile station, excluding spare parts, accessories, and optional components.

3. The standard hydraulic system is suitable for environments with an altitude not exceeding 2,000 meters and a temperature range of -20°C to +40°C.

4. The standard electrical control system is suitable for environments with an altitude not exceeding 1,000 meters and a temperature range of -5°C to +40°C; power supply voltage of 380 V ±5%, 50 Hz ±1 Hz. The installed power is total power of the standard equipment.

5. MiningAlliance Machinery ultimately interprets the definitions above.

Engineering Conclusion and Recommendation

Based on a full review of specific project requirements in Parakou, Benin, material characteristics, capacity requirements, and product-size demands. We recommend NKT100-4 wheeled mobile crushing and screening plant. It is configured with a vibrating feeder, jaw crusher, cone crusher, and a three-layer vibrating screen.

Because the customer's target clients include large-scale public works contractors (BTP), local real estate developers, and individual buyers. We specifically recommend HST hydraulic cone crusher for its superior finished particle shape compared with spring cone crusher.

If need an even better particle shape can add a separate shaping machine to production line after cone crushing stage.

Conclusion

Overall, this solution gives the Parakou, Benin operation a durable, flexible, and market-responsive crushing line. It is engineered from real granite crushing experience and built to adapt as product demand shifts across BTP, real estate, and general aggregate markets.

Investing in premium hydraulic crushing technology ensures that your quarry operations remain efficient, highly productive, and ready to meet the evolving infrastructure demands.

If you would like to learn more about granite crushing solutions, please feel free to contact MiningAlliance Machinery. We can provide customized business plan based on your specific needs.