Graphite projects in Madagascar usually win margin by protecting flake quality while keeping a steady flotation feed envelope. Too aggressive crushing can quietly hurt final product value.
This guide compares three 120-300 TPH front-end options with different risk and control profiles.
30-second decision framework
Condition
Flake preservation is commercially critical
Prioritize gentle staged reduction and avoid unnecessary impact duty
Excessive high-energy breakage can reduce flake value before beneficiation starts.
Condition
Feed variability increases from pit blending changes
Use balanced route with strict screen recirculation discipline
Stable top size improves flotation consistency and reduces upset frequency.
Condition
Contract requires consistent concentrate quality month to month
Adopt high-control route with clear reduction responsibilities
Process repeatability becomes more important than peak tons in this case.
Inputs you must lock before model selection
- Flake size distribution targets from commercial team.
- Ore-domain variability and blending pattern.
- Target flotation feed top-size envelope.
- Recovery response to feed-size drift in recent runs.
- Available maintenance windows and spare strategy.
Recommended process lines
Gentle starter route
Capacity: 120-180 TPH
Feed: Graphite ore up to 500 mm
Target output: Conservative feed prep before flotation
Setup: PE Jaw -> PY Cone -> screen
Why this works
- Lower breakage intensity helps flake protection.
- Simple architecture for commissioning phase.
- Good baseline for metallurgical tuning.
Balanced flotation-feed route
Capacity: 170-240 TPH
Feed: Mixed-domain graphite feed
Target output: Stable feed with controlled fines
Setup: PE Jaw -> PY Cone -> controlled screen loop
Why this works
- Balances throughput and flake-friendly reduction.
- Better process stability under blend swings.
- Suitable for steady commercial production.
High-control quality route
Capacity: 230-300 TPH
Feed: Variable ore under strict quality contracts
Target output: Tighter, repeatable flotation feed window
Setup: PE Jaw -> dual PY Cone -> high-control screening before flotation
Why this works
- Strongest control over top-size variability.
- Improves consistency for downstream flotation tuning.
- Best fit when quality penalties are material.
Madagascar graphite route comparison
| Metric | Gentle starter | Balanced | High-control |
|---|---|---|---|
| Best for | Early-stage flake protection focus | Stable commercial operation | Strict quality-contract supply |
| Flake protection | High | Medium-high | Medium-high |
| Feed consistency | Medium | High | Highest |
| Operational complexity | Low | Medium | Medium-high |
| Main risk | Limited throughput upside | Needs tuning discipline | Higher control burden |
Protecting Flake Value Starts Upstream
Many teams optimize flotation reagents while ignoring upstream breakage profile. For graphite, that sequencing is often backwards.
Defining a flake-protection envelope for crushing settings gives a more stable base for downstream beneficiation.
- Set crusher strategy with flake-size target in mind.
- Track fines growth as a quality-risk indicator.
- Link blend-class changes to setpoint review rules.
- Review crushing and flotation KPIs in one dashboard.
RFQ Questions That Prevent Rework
Ask suppliers to state expected feed-size stability and fines generation under at least two ore-domain scenarios.
Require explicit assumptions on flake protection strategy in the technical proposal scope.
RFQ checklist before you contact suppliers
- Commercial flake-size requirements and tolerance bands.
- Ore-domain variability and blending plan.
- Target feed envelope before flotation.
- Expected fines generation limits by stage.
- Commissioning test plan for multiple blend scenarios.
- Acceptance KPIs combining quality and throughput.
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.
Related Buyer Q&A
For procurement-focused answers beyond this country case, review these Q&A topics.