Granite Crushing&Screening Plant in Cameroon

• Type: Semi-Mobile(mounted on steel structure) 
• Max Feeding Size: 750mm
• Final Output Size: 0-5mm, 5-15mm, 15-25mm, 25-50mm
• Capacity: 250-300TPH

On August 05 of 2014, one customer from Cameroon ordered a complete set of granite crushing and screening plant, including vibrating feeder GZD1300x4900, jaw crusher PE900x1200, multi-cylinder hydraulic cone crusher HPT300, vibrating screen 2YZS2460 and 2YZS2160, belt conveyors, magnetic separator, dust collector and steel structure. Total cost is more than USD1,100,000. They opened Letter of Credit(L/C NUMBER: 00001IMC14000042) for us.

Their project is located in Douala, which is to crush granite from 750mm into 5mm, 15mm, 25mm, 50mm at 250-300tons per hour for road construction. The investor from France has very strict requirements on quality, after comparing with other factories in China, they choose us as supplier, not only because our factory is the biggest one among those he found, but also because we have strict quality control and inspection, and our machining works is much better than others.

Before shipment, SGS dispatched engineers to our factory for pre-shipment quality inspection(SGS 17468 18 / SCB 002132 YD). We loaded and shipped these goods 895packages totally in 2x20'OT+2x40'FR+18x40'HQ from Qingdao to Douala. 

For granite on site is very hard, whose Mohs’ Hardness Scale is 6-7, in this plant, we use multi-cylinder hydraulic cone crusher as secondary crusher, who has more advantages as follows:

1.Unique inter-particle crushing method

• Inter-particle crushing works between materials that increases the working life of mantle and bowl liner;

• Provide a more consistent gradation and superior cubic products. Better performance in the construction and sand making area.

2.Integration of the hydraulic station and lubrication system

• Small footprint and easy maintenance;

• Save 20% lubrication oil;

• Germany AKG air cooling system avoids the disadvantage of water cooling system, such as lack of water and leakage of water;

• Larger flow oil pump will guarantee the stability of oil flow;

• Temperature sensors keep tracking of the return oil temperature, which will guarantee the stable performance.

3.Advanced hydraulic system

• Larger diameter tubing and larger capacity hydraulic accumulator improve the stability and response sensitivity;

• Hydraulic motor setting adjustment and lock cylinder make it easy to reset the CSS;

• The hydraulic tramp release cylinders make it easy to pass tramp iron and clean the cavity;

• Less downtime will cut the maintenance cost.

4.Optimized liner retention technology

• The thicker liners increase reliability and service life;

• Advanced liner retention technology greatly simplifies the liner change, Epoxy resin is not needed, which will cut the manpower and time cost.

5.Safe and reliable

• Equipped with the Siemens PLC, touch screen, and intelligent control system, operation and data recording is more simple;

• Larger bearing area, larger bearing capacity and longer service life;

• The overall casting frame with box beam design characterized by larger strength;

• The interior of the crusher is protected from dust by the adoption of multiple sealing protection, such as positive pressure dust prevention system, U-T seal and contact-type spherical floating seal.

6.Final aggregates with cubic shape