Project Background
A sand and gravel processing enterprise in Gansu, established in 2015, primarily uses the locally abundant pebble resources to produce manufactured sand and crushed aggregates for construction. With the continuous launch of infrastructure projects in surrounding cities, the market demand for high-quality manufactured sand has been rising steadily. The client’s original small-scale sand production line could no longer meet order requirements. After extensive research, the client decided to comprehensively upgrade the existing production line by purchasing new equipment to increase capacity and improve product quality.
Problems with the Original Equipment
The client previously used an old spring roll crusher, which suffered from severe aging and had prominent issues:
Unstable output size: The spring pressure required manual adjustment and could not maintain consistency, causing wide fluctuations in the proportion of coarse sand and fine powder in the final product, which often failed to meet the grading standards for construction sand.
High failure rate: The springs were prone to fatigue and breakage after prolonged high-load operation, leading to two or three shutdowns for maintenance per month on average, severely disrupting production schedules.
pebble
Rapid roll wear: The roll surfaces wore out quickly and required build-up welding repair every six months, incurring high maintenance costs and consuming labor.
Solution and Equipment Selection
Based on the client’s raw material characteristics and capacity requirements, Huashengming recommended the 1510 Fully Hydraulic Roll Crusher (Model 2PGY1500×1000) . This model utilizes a hydraulic control system instead of traditional springs, allowing real-time pressure adjustment, easy operation, and stable output size. In addition, the equipment has a compact structure with a small footprint, making it suitable for retrofitting within the existing workshop.
Huashengming also provided a complete supporting solution for the entire production line, including vibrating feeders, belt conveyors, and vibrating screens, ensuring proper matching and smooth operation at every stage.
Operational Results and Customer Feedback
After installation and commissioning, the new equipment underwent a one-month trial run, during which all indicators met or exceeded expectations:
Capacity achieved: The actual processing capacity remained stable at 150–180 tons per hour, fully meeting order requirements.
Uniform output size: The hydraulic system automatically adjusted the roll gap, resulting in well-graded finished sand with a fineness modulus stable between 2.6 and 2.8.
Improved product quality: The compression crushing principle produced sand particles with rounded surfaces and low flakiness content. Concrete batching plants reported noticeably improved workability when using this sand.
Stable operation: The equipment ran continuously for three months without unscheduled downtime. Roll shell wear was minimal, with an estimated service life of over two years.
Lower energy consumption: The total power consumption was approximately 20% lower than that of comparable impact crushers, resulting in significant monthly electricity savings.
pebble sand making machine
The client’s project manager commented: “Huashengming’s roll crusher is easy to operate and produces stable output. The best part is it rarely breaks down—much more reliable than our old machine. Now we can confidently take on large orders without worrying about frequent repairs.”
Conclusion
The successful application of the Gansu pebble sand-making project demonstrates that for high-hardness, highly abrasive pebble materials, Huashengming’s fully hydraulic roll crusher offers significant advantages in output precision, operational stability, and overall cost-effectiveness. If you are looking for an efficient and reliable solution for pebble sand production, Huashengming provides free technical consultation and on-site factory tours.
