Indonesia is one of Southeast Asia’s most resource-rich countries, with extensive open-pit gold mining operations across Sumatra, Kalimantan, and Papua. The jaw crusher is the cornerstone of the primary crushing process in these sites, playing a critical role in preparing gold-bearing ore for downstream processing and metal recovery.

Why Jaw Crushers Are Ideal for Gold Ore Crushing

Jaw crushers are preferred for open-pit mining due to:

• 🔹 High capacity and efficiency in breaking large ore blocks
• 🔹 Simple structure and durability suitable for rugged mining environments
• 🔹 Adjustable output sizes ideal for downstream milling or heap leaching
• 🔹 Lower operational costs compared to other crushing methods

Gold Ore Crushing Process in Indonesia

1. Blasting and Excavation

Gold-bearing rocks are loosened through controlled blasting in open-pit areas and transported to the crushing station.

2. Primary Crushing with Jaw Crusher

At the site, a heavy-duty jaw crusher (e.g., PE900×1200 or PE1000×1200) crushes rocks up to 800 mm down to 100–200 mm, ideal for milling or secondary crushing.

3. Secondary and Tertiary Crushing (Optional)

If required, cone or impact crushers follow to achieve finer particle sizes for gold recovery.

4. Screening and Separation

Crushed ore is screened, and oversized materials are recirculated back to the jaw crusher or passed through secondary crushers.

5. Downstream Processing

The final crushed material enters grinding mills, flotation tanks, or heap leaching systems depending on the mining setup.

Recommended Jaw Crusher Models for Indonesia Gold Mines

Model	Feed Size (mm)	Output Size (mm)	Capacity (t/h)	Application Area
PE600×900	≤480	65–160	60–150	Medium-scale gold sites
PE900×1200	≤750	95–165	150–300	Large open-pit operations
C6X110	≤700	75–200	160–320	Advanced mining projects

Case Study: Sumatra Gold Mine

A large gold mine in Sumatra upgraded its crushing system using Liming Heavy Industry PE900×1200 jaw crushers, yielding:

• 30% improvement in throughput
• Lower maintenance frequency
• Higher gold recovery rate in downstream processing

Environmental and Operational Benefits

• ✅ In-pit crushing reduces hauling distance and fuel use
• ✅ Dust suppression systems minimize air pollution
• ✅ Energy-efficient motors help reduce CO₂ emissions

Conclusion

In Indonesia’s gold mining industry, jaw crushers provide the essential foundation for efficient, reliable, and cost-effective ore processing in open-pit environments. With high adaptability to different ore hardness levels, easy maintenance, and rugged design, they remain the top choice for gold mine operators across the country.

📞 Contact Liming Heavy Industry to get a custom-designed jaw crusher system for your gold mining project in Indonesia.