River pebble projects usually look profitable on paper because shape is excellent. Real margin is decided later in the wash loop, where fine loss can quietly erase revenue.
This guide compares three routes for 100-260 TPH plants targeting concrete-grade manufactured sand.
30-second decision framework
Condition
Main revenue depends on 0-5 mm saleable fraction
Treat washing and recirculation as core design, not add-on
Most losses happen after crushing, not during crushing.
Condition
Clay contamination is low but moisture swings are high
Use balanced shaping plus controlled wash strategy
Over-washing clean feed can dump profitable fines.
Condition
Project requires premium shape index and strict cleanliness
Adopt closed-loop premium route with tighter control
Premium contracts justify additional control complexity.
Inputs you must lock before model selection
- Target fineness modulus and cleanliness standard.
- Fine-loss tolerance in wash overflow.
- Seasonal moisture profile of feed and stockpile.
- Shape index requirements by customer segment.
- Water recycle capacity and solids handling limit.
Recommended process lines
Basic M-sand route
Capacity: 100-160 TPH
Feed: River pebbles up to 450 mm
Target output: Commercial 0-5 mm M-sand
Setup: PE Jaw -> PF Impact -> XS Washer
Why this works
- Simple and cost-effective for local demand.
- Fast deployment with moderate control needs.
- Good entry route for new sand operators.
Balanced yield route
Capacity: 150-220 TPH
Feed: Variable pebble feed with seasonal moisture
Target output: Higher and steadier 0-5 mm yield
Setup: PE Jaw -> PY Cone -> PF Impact shaping -> XS Washer
Why this works
- Improves shape while preserving fine fraction.
- More stable under feed variability.
- Strong fit for mixed concrete customer base.
Premium contract route
Capacity: 210-260 TPH
Feed: High-volume pebble feed
Target output: Premium M-sand with tight quality control
Setup: PE Jaw -> PY Cone -> shaping loop -> XS Washer with recycle discipline
Why this works
- Best control of shape, cleanliness, and fines retention.
- Supports quality-sensitive urban concrete supply.
- Designed for long-term contract consistency.
Brazil river-pebble sand route comparison
| Metric | Basic | Balanced | Premium |
|---|---|---|---|
| Best fit | Local commodity sand | Mixed quality demand | Premium concrete contracts |
| Fine-loss control | Basic | Good | Highest |
| Shape consistency | Medium | High | Very high |
| Main risk | Revenue loss in wash overflow | Tuning drift in recirculation | Complexity without data discipline |
| Water system demand | Low-medium | Medium | Medium-high |
Most Revenue Is Won in the Wash Loop
Teams often optimize crushers first and washers last. In M-sand business, this order should be reversed because wash settings directly decide saleable yield.
Add daily mass-balance checks between crusher output and final saleable sand. That one habit exposes hidden loss early.
- Record wash overflow solids every shift.
- Tie recirculation settings to moisture bands.
- Do not evaluate shape without yield context.
- Review wash loop performance with commercial team weekly.
RFQ Language for Better Comparisons
Ask vendors to report expected saleable 0-5 mm yield, not only plant throughput. Throughput alone can hide poor economics.
Require a water-and-fines mass balance sheet in technical proposal deliverables.
RFQ checklist before you contact suppliers
- Target fineness modulus and cleanliness limits.
- Minimum acceptable saleable 0-5 mm yield.
- Fine-loss reporting method and acceptance threshold.
- Water recycle and solids balance assumptions.
- Seasonal operating parameter plan.
- Commissioning KPI set including yield and quality.
Need a model recommendation for your project?
Share your feed size, target products, and throughput range. Our engineering team can propose a practical equipment list and sizing baseline.
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