🪨 Hard-Rock Capabilities & Direct Feed Range
Traditional impact or hammer-based sand makers experience severe wear and drastic capacity drops when encountering hard, abrasive stone. HSM double-roll sand makers pair high-chromium alloy roller shells with an automatic hydraulic buffering system, boosting wear and compression resistance by 300% to ensure continuous, jam-free production.
- Maximum Direct Feed Size: ≤ 50 mm (Direct sand making without secondary pre-crushing).
- Applicable Feed Materials: River pebbles, cobbles, granite, basalt, iron ore, and over 200 hard minerals.
HSM Double-Roll Sand Maker crushing 50mm hard river pebbles via hydraulic bed compression
📈 Full-Range Model Hierarchy (5 to 450 TPH)
HSM offers over 20 standardized model configurations engineered to fit various plant sizes, from entry-level sand yards to large-scale commercial ready-mix concrete suppliers:
1. Small Series (5–50 TPH)
Low initial investment and fast return on investment; ideally suited for small-scale aggregate plants and startups.
2. Medium Series (50–300 TPH)
The optimal cost-performance ratio for mid-size sand and gravel operations requiring continuous daily output.
3. Ultra-Heavy Series (300–450 TPH)
Engineered specifically for heavy industrial aggregate production lines, offering high throughput per kilowatt-hour.
A full range of double-roll sand-making machines in stock and ready for immediate delivery
🛡️ Extended Roller Shell Lifespan & Case Study
As the primary wear component, standard roller shells typically require replacement every few months. HSM utilizes specialized alloy casting combined with deep-quenching heat treatment, pushing shell longevity far beyond standard market metrics.
🔹 Verified Field Performance (Shandong Ready-Mix Station): A commercial concrete plant operated an HSM double-roll machine continuously for 2 full years without replacing the roller shells—requiring only routine gap adjustments to maintain fine sand gradation.
| Performance Indicator | Standard Double-Roll Crushers | HSM Heavy Industry Sand Maker |
|---|---|---|
| Roller Shell Lifespan | 3 to 6 months | 1 to 3 years (Deep-quenched alloy) |
| Max Feed Size | ≤ 20–30 mm | ≤ 50 mm direct entry |
| Peak Hourly Output | 100–200 TPH | Up to 450 TPH per unit |
| Operational Protection | Mechanical spring buffering | Hydraulic automatic yielding & reset |
Conclusion: Combining 1-to-3-year roller shell longevity, 450 TPH single-unit capacity, and intelligent hydraulic operation, HSM double-roll sand makers provide a robust, cost-reducing solution for mastering hard-rock aggregate processing.
+86-13838144666
+86-13838144666
