High-Silica River Pebble Processing in Southeast Asia
Capacity: 180-200 TPH | Objective: Premium M-Sand Production
Strategic Assessment: The High-Wear Challenge
Working site of the double-roller sand making machine
The project involved processing river pebbles with an aggressive 78% silica content. Initially, the client utilized a standard VSI (Vertical Shaft Impact) system, which proved economically unviable due to the material’s extreme abrasiveness:
Wear parts failed every 120 hours, creating a cycle of constant downtime and excessive spare parts expenditure.
The high-speed impact generated up to 22% stone powder, failing to meet the strict fineness modulus required for high-strength concrete.
The Solution: Hydraulic Precision Engineering
Double-roller sand making machine site
To overcome these hurdles, HSM implemented the 2PGY1500×1200 Hydraulic Double Roller Crusher. This wasn’t a standard installation, but a system tailored for extreme silica environments:
- Quasi-Static Crushing Tech: By replacing high-speed impact with high-pressure extrusion, we minimized the friction-induced wear that plagues traditional sand makers.
- Dynamic PLC Gap Control: An automated hydraulic monitoring system maintains a 3mm discharge gap in real-time, ensuring a consistent 2.6-3.0 fineness modulus for the M-Sand.
- Next-Gen Composite Liners: We equipped the rollers with 5th Generation high-chromium alloy skins, designed specifically to withstand high-alumina and silica impact.
Streamlined Production Circuit
(≤30mm)
(0-5mm)
Operational ROI: VSI vs. HSM Hydraulic Roller
TRADITIONAL VSI SYSTEM
HSM 2PGY HYDRAULIC
Success Profile
By switching to HSM hydraulic technology, the client achieved a $120,000 annual reduction in operational costs. Beyond savings, the project now yields a higher percentage of premium-grade sand, ensuring compliance with international infrastructure standards.
