A double head concrete grinder is a critical machine in modern aggregate processing lines, designed for efficient surface preparation and waste concrete recycling. Its dual-head configuration ensures high productivity, making it ideal for large-scale sand and gravel plants.
| Model | Power (kW) | Working Width (mm) | Grinding Depth (mm) | Weight (kg) |
|---|---|---|---|---|
| DHG-300 | 15 | 300 | 5-10 | 450 |
| DHG-500 | 22 | 500 | 5-15 | 680 |
| DHG-800 | 37 | 800 | 5-20 | 950 |
In a complete crushing and sand-making plant, the concrete grinder typically works after primary crushing but before screening. It processes recycled concrete into uniform particles that can be further refined by impact crushers or sand makers. The ground material is then classified through vibrating screens to produce various grades of aggregates.
Q: What’s the lifespan of grinding discs?
A: Typically 50-80 hours under normal concrete conditions, depending on hardness.
Q: Can it process asphalt surfaces?
A: Yes, but requires special diamond tools designed for asphalt.
Q: What maintenance is required?
A: Daily bearing lubrication and monthly motor inspection are recommended.
In a major city renewal project, our DHG-500 units processed 12,000 m² of demolished concrete daily. The ground material was fed into a VSI crusher to produce high-quality recycled aggregates for new construction, achieving 95% material utilization rate while reducing landfill costs by 60%.
