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The Cost of Inefficient Gold Ore Comminution: Are You Losing 1520% of Your Recovery Potential?

Every plant manager knows the bottleneck: if your primary crushing circuit fails to deliver a consistent, properly liberated feed, downstream grinding and leaching efficiency collapses. Industry data indicates that poorly matched crushing equipment can increase operating costs by $0.50 ke $1.20 setiap tan due to excessive recirculation loads, premature liner wear, and downstream mill overgrinding. Are you facing excessive downtime from jaw crusher jams on highclay ores? Is your cone crusher producing too many fines, blinding your screens and increasing cyanide consumption? The solution lies in selecting equipment designed specifically for the abrasive, highcompressivestrength nature of goldbearing rock.

Gambaran Keseluruhan Produk: The Gold Ore Primary & Secondary Crushing System

This datasheet covers a modular, heavyduty jaw and cone crushing circuit engineered for gold ore feed sizes up to 600mm, targeting a final product of 80% passing 1219mm for optimal SAG or ball mill feed. The workflow is designed for high availability in remote, highaltitude operations.

Aliran Kerja Operasi:
1. Feed Hopper & Grizzly: Scalps 150mm fines to bypass the primary crusher, mengurangkan kehausan.
2. Menghancurkan Rahang Utama: Highstroke, deepchamber jaw reduces ore from 600mm to 150mm.
3. Surge Bin & Pengumpan Bergetar: Regulates feed rate to the secondary cone crusher.
4. Penghancuran Kon Sekunder: Hydrosetcontrolled, medium chamber cone reduces material to 1219mm.
5. Saringan Litar Tertutup: Bahan bersaiz besar diedarkan semula ke penghancur kon.

Skop Permohonan: Ideal for hard rock gold (urat kuarza, greenstone belts) dengan kekuatan mampatan sehingga 350 MPa. Batasan: Not recommended for highclay (>15%) saprolite ores without a dedicated scrubber circuit; throughput drops significantly with excessive moisture.

Ciri Teras

HeavyDuty Deep Chamber Jaw | Asas Teknikal: Increased nip angle & toggle plate geometry | Faedah Operasi: Handles slabby, hard gold ore without stalling; reduces bridging incidents by 40% | Kesan ROI: Lower unscheduled downtime; estimated savings of $8,000 per hour of lost production.

Hydroset Cone Adjustment System | Asas Teknikal: Perlindungan beban hidraulik & automated closedside setting (CSS) pelarasan | Faedah Operasi: Instant clearing of tramp iron; CSS can be adjusted remotely in under 2 minit | Kesan ROI: Eliminates manual liner changes for different ore types; reduces recirculation load by 15%.

HighStrength Manganese Liners (18% Mn, 2% Cr) | Asas Teknikal: Keluli mangan austenit pengerasan kerja | Faedah Operasi: Resists gouging abrasion from quartz; liner life averages 8,00012,000 hours in gold ore | Kesan ROI: Reduces annual wear parts cost by 22% compared to standard 14% Mn liners.

Modular SkidMounted Frame | Asas Teknikal: Structural steel Ibeam base with vibration dampeners | Faedah Operasi: Reduces concrete foundation costs by 60%; allows rapid relocation within the pit | Kesan ROI: Shortens project payback period by 46 months for mobile operations.

Pemacu Frekuensi Boleh Ubah (VFD) on Feed Conveyor | Asas Teknikal: Torque control & loadsensing logic | Faedah Operasi: Automatically reduces feed rate when crusher amp draw spikes; prevents choke feeding | Kesan ROI: Protects motor windings; reduces energy consumption per ton by 812%.

Sistem Semburan Penindasan Habuk | Asas Teknikal: Water misting at transfer points & crusher discharge | Faedah Operasi: Controls respirable silica dust to <0.05 mg/m³ | Kesan ROI: Avoids OSHA/MSHA fines; reduces water consumption by 30% vs. standard sprays.

Kelebihan Kompetitif

| Metrik Prestasi | Piawaian Industri (200 HP Cone) | Gold Ore Crushing Solution (200 HP Cone) | Kelebihan (% Penambahbaikan) |
| : | : | : | : |
| Throughput (tph) | 180220 tph | 240280 tph | +27% |
| Nisbah Pengurangan (Sekunder) | 4:1 | 5.5:1 | +37% |
| Liner Wear Rate (lbs/ton) | 0.045 lbs/ton | 0.032 lbs/ton | 29% |
| Penggunaan kuasa (kWj/t) | 1.8 kWj/t | 1.4 kWj/t | 22% |
| Masa Min Antara Kegagalan (MTBF) | 1,200 jam | 1,800 jam | +50% |

Spesifikasi Teknikal

| Parameter | Spesifikasi |
| : | : |
| Model | GOC1200 (Rahang Utama) / GOC400 (Kon Sekunder) |
| Pembukaan suapan (Rahang) | 1200mm x 900mm |
| Saiz suapan maksimum (Kon) | 200mm |
| Julat Kapasiti | 200 350 Ton metrik sejam (depending on CSS) |
| Keperluan Kuasa | 160 kw (Rahang) / 200 kw (Kon) @ 660V, 3Fasa, 50/60 Hz |
| Spesifikasi Bahan | Bingkai utama: ASTM A36; Aci: 4340 Keluli Aloi Tempa; Pelapik: ASTM A128 Grade C |
| Dimensi Fizikal (Penghancur Sahaja) | Rahang: 3.2m L x 2.1m W x 2.8m H; Kon: 2.5m L x 2.0m W x 2.5m H |
| Jumlah Berat (Penghancur Sahaja) | Rahang: 42,000 kg; Kon: 28,000 kg |
| Julat Operasi Persekitaran | 20°C hingga +50°C; Altitude up to 4,500m (with derating) |

Senario Aplikasi

HighAltitude Underground Gold Mine (Andes Region)

Cabaran: A mine at 4,200m needed to reduce haulage costs by precrushing ore underground. Space was limited, and ambient oxygen levels were low.
Penyelesaian: Installed a compact, VFDdriven GOC400 cone crusher on a lowprofile skid. The Hydroset system allowed remote CSS adjustment from the surface control room.
Keputusan: Reduced skip hoisting cycle time by 18%. Eliminated manual liner adjustments in lowoxygen environment. Tercapai 98% ketersediaan berakhir 12 bulan.

OpenPit Oxide/Gold Transition Ore (Afrika Barat)

Cabaran: The ore body contained variable clay content (512%) causing severe blinding of the primary jaw crusher and feeder.
Penyelesaian: Implemented the GOC1200 jaw with a heavyduty grizzly feeder (spacing 150mm) and a bypass conveyor. The deep chamber design handled the sticky material without packing.
Keputusan: Dihapuskan 3 weekly blockages. Throughput increased from 180 tph ke 260 tph. Screen deck life on the secondary circuit increased by 40% due to reduced fines generation.

Greenfield Gold Project (Canada)

Cabaran: Required a mobile, relocatable crushing circuit to follow the pit development. Capital budget was constrained.
Penyelesaian: Deployed the full modular skid system (rahang, kon, skrin) on concrete pads. No permanent foundations were required.
Keputusan: First ore crushed 6 minggu lebih awal daripada jadual. Relocation cost was $45,000 vs. $250,000 for a fixed plant. Achieved target P80 of 14mm consistently.

Pertimbangan Komersial

Peringkat Harga Peralatan (Pelabuhan FOB):

• Pakej Standard (GOC1200 Jaw + GOC400 Cone): $480,000 $620,000 (includes standard manganese liners, panel kawalan asas).
• Pakej Premium: $680,000 $850,000 (includes premium 18% Mn liners, VFDS, remote monitoring package, penindasan habuk).
• Loji Modular Turnkey: $1.2M $1.8M (includes all conveyors, skrin, electrical room, dan sokongan pentauliahan).

Ciri Pilihan:

• Automated Lube System: $18,000 (extends bearing life in dusty environments).
• HighAltitude Motor Package: $12,000 (derated for >3,500m).
• Pakai Penderia Pemantauan: $8,500 (amaran penyelenggaraan ramalan).

Pakej Perkhidmatan:

• asas (1 tahun): 2 site inspections, phone support, 10% discount on wear parts.
• Komprehensif (3 tahun): 4 site inspections, diagnostik jauh, guaranteed 48hour parts delivery, liner changeout training.

Pilihan Pembiayaan:

• LeasetoOwn: 3660 month terms with 10% buyout.
• Deferred Payment: 90day payment holiday for firsttime buyers.
• PerformanceBased: Payment tied to throughput guarantees (mis., $/tan diproses).

Soalan Lazim

1. Can this equipment handle highsilica gold ore (kuarza) without excessive wear?
ya. The standard liners are 18% manganese with 2% Chromium, specifically formulated for highsilica content. Data lapangan menunjukkan a 30% improvement in wear life over standard 14% Mn liners in quartzrich ore.

2. What is the minimum power requirement for the GOC400 cone crusher?
The crusher requires a minimum of 200 kw. Walau bagaimanapun, for optimal performance and to prevent motor stalling under full load, we recommend a 250 kW motor with a VFD. Operating below 200 kW will reduce throughput by approximately 15%.

3. How does the Hydroset system handle tramp iron?
The system monitors hydraulic pressure. If a noncrushable object (mis., drill bit) masuk ke dalam bilik, pressure spikes. The Hydroset valve opens instantly, dropping the main shaft to clear the object. The system resets automatically within 10 saat.

4. What is the typical lead time for a standard package?
Current lead time is 1418 minggu dari pengesahan pesanan. Ini termasuk pembuatan, ujian kilang, and crating for ocean freight. Premium packages may add 24 weeks for the remote monitoring system.

5. Can this circuit be integrated with an existing SAG mill?
ya. The target product size (P80 of 1219mm) is standard feed for most SAG mills. We provide a data sheet for the conveyor discharge chute to match your existing mill feed bin. A surge bin with a capacity of 50100 tons is recommended.

6. What is the warranty on the main frame and shaft?
The main frame and eccentric shaft carry a 5year warranty against manufacturing defects. Pakai bahagian (pelapik, plat pipi) are excluded. The hydraulic system components carry a 2year warranty.

7. Adakah anda menyediakan latihan pengendali?
ya. We offer a 3day onsite training program covering startup procedures, pelarasan CSS, liner changeout safety, and troubleshooting common issues like choke feeding and belt slippage. This is included in the Comprehensive Service Package.