A Chronicle of the 250T/H All-Steel Frame Granite Crushing Production Line Project in Douala, Cameroon

A Chronicle of the 250T/H All-Steel Frame Granite Crushing Production Line Project in Douala, Cameroon

Project Background: Douala, Cameroon, as the country's economic capital and largest port city, is a logistics and trade hub in Central Africa. With the accelerated development of local infrastructure, the demand for high-quality building aggregates has surged. This project, located in the Douala area, aims to construct a high-standard granite crushing production line.

It is worth noting that the client previously worked in the forestry sector, and this foray into investing in a stone quarry presented a lack of experience in mineral processing and equipment maintenance. To address this, the technical team at Zhengzhou Meishuo Intelligent provided comprehensive "nanny-style" support—from customized solution configuration to on-site training in equipment operation, maintenance, and repair techniques—helping the client successfully transition from "forestry" to "mining."

Project Core Parameters

Processed Material: Granite

Production Capacity: 250T/H

Feed Size: ≤700mm

Finished Product Size: 0-5mm, 5-15mm, 15-25mm

Application Areas: Highways, Bridge Construction, Concrete Batching Plants

Customized Process and Equipment Configuration

Targeting the high hardness and high silicon content of granite, Zhengzhou Meishuo Intelligent Equipment Co., Ltd. has customized a three-stage crushing process of "jaw crusher + cone crusher + impact crusher" for the client, and adopted an all-steel frame structure design to ensure the stability and efficiency of the production line.

Feeding and Primary Crushing

The hopper adopts an all-steel frame structure, lined with 20mm wear-resistant steel plates to effectively prevent material impact and wear. Large pieces of granite are evenly conveyed to the jaw crusher by a heavy-duty vibrating feeder for primary primary crushing.

Secondary and Fine Crushing Stage

The primary crushed material enters the hydraulic cone crusher for secondary crushing. The layered crushing principle of this equipment can effectively reduce the wear of wear-resistant parts, making it particularly suitable for high-hardness materials such as granite.

Shaping and Screening

The material then enters a European-style impact crusher for shaping, resulting in a superior particle shape. Finally, it undergoes precise grading using two circular vibrating screens.

Closed-Loop Circulation

Materials larger than 25mm after screening are returned to the impact crusher for further crushing, forming a closed-loop circulation; ultimately, it stably produces high-quality gravel in three sizes: 0-5mm, 5-15mm, and 15-25mm.

Customer Testimonials

"From site survey and equipment selection to installation, commissioning, and final acceptance testing, Zhengzhou Meishuo Intelligent provided an impressive one-stop solution. Considering our initial foray into the stone industry, Meishuo Intelligent specifically dispatched a technical team to be stationed on-site to provide hands-on training for our operators, helping us master equipment operation and maintenance skills in a very short time. We are very satisfied with this cooperation and look forward to working with Zhengzhou Meishuo Intelligent again in the future."