Model 1100 Wet Gold Grinding Mill Deployed In Sudan: Daily Processing Capacity Of 8 Tons, Single 5.5Kw Motor, The Preferred Grinding Mill For Small Gold Mines

1100 Wet Pan Mill in Sudan

If you are operating a small concentrator in Sudan with a daily processing capacity of 5–10 tons of gold ore, the Model 1100 Wet Pan Mill is currently the grinding equipment with the highest return on investment in the African artisanal and small-scale gold mining (ASGM) market.

Key Reasons:

• Daily processing capacity of 8 tons (of gold ore), matching the daily output of over 90% of artisanal mines in Sudan.

• Motor power of only 5.5kW, powered by a diesel generator, eliminating the need for grid connection in remote mining areas.

• Weighing only 4.5 tons, five units can be packed in a 20GP container, keeping logistics costs under control.

• Direct gold extraction via amalgamation, eliminating complex processes such as flotation/cyanidation, allowing for same-day production and gold production.

Sudan's gold production is projected to exceed 70 tons by 2025, with artisanal and small-scale mining (ASGM) contributing 91.5% of that output. The Model 1100 wet pan mill is the "golden entry point" to this market.

II. Market Background: Sudan, the "Heartland" of Global Artificial Gold Mining

2.1 Data Facts

 Sudan's artificial gold mining industry ranks among the top three globally and is still expanding rapidly. Remote sensing satellite data shows that ASGM mining sites along the Nile River are spreading at a rate exceeding 15% annually (ResearchGate, 2025).

2.2 Equipment Requirements Profile

The core needs of Sudanese gold mine owners are very clear:

1. Low investment threshold — Mine owners are mostly sole proprietors or small cooperatives, with a typical budget of no more than $8,000 per unit.

2. Ready to use immediately — Few parts, simple installation, no need for on-site engineers.

3. Low energy consumption operation — Mines are mostly located in desert areas far from the power grid, powered by diesel generators.

4. Quick returns — Gold extraction via amalgamation, with gold produced on the same day as grinding, resulting in extremely fast cash flow.

The 1100-type wet gold mill precisely addresses these four dimensions.

III. Technical Parameters and "Benefit Translation" of the 1100 Type Wet Gold Grinder

3.1 Core Parameter Table

3.2 Profit Translation: How Parameters Turn into Profits

5.5kW Motor → Less than $2 in electricity cost per day

Sudanese diesel generator costs approximately $0.15–$0.20/kWh. A 1100 model operating for 8–10 hours a day costs $8–$11 in electricity. Compared to the 1200 model (7.5kW), which consumes at least $3–$4 more per day, this saves $1,000+ per year.

Daily Processing Capacity 8 Tons → Daily Gold Production 16–40 Grams

Sudanese gold ore grades fluctuate greatly. Based on a common grade of 2–5 g/t, processing 8 tons of ore per day with a recovery rate of 60%–80% (mercury amalgamation) allows a single unit to produce 10–32 grams of crude gold per day. Based on an international gold price of $2,500/oz (approximately $80/g), the daily revenue is $800–$2,560.

10–13 r/min low-speed grinding → Preserves gold particles, high recovery rate

Excessive rotation speed can cause gold particles to be over-crushed and embedded in the grinding disc grooves, making them difficult to recover. The 1100 model features a dedicated "gold extraction mode" (10–13 r/min), using low-speed, high-torque grinding to maximize the preservation of gold particle integrity, improving the amalgamation recovery rate by 5–8 percentage points.

4.5 tons total machine weight → 5 units can fit in one 20GP container

The 1100 model can be disassembled for separate transport of the grinding wheels and discs. A standard 20GP container can hold 5 complete 1100 model units, with a single unit costing only $200–$300 by sea to Port Sudan.

1100 Wet Pan Mill in Sudan

IV. Why does the Sudanese market choose the 1100 model instead of the 1200/1400 models?

4.1 Model Selection Comparison

4.2 Selection Recommendations

For newly established inpidual mine owners with limited budgets → Select 1100. Daily output of 8 tons, operated by 2-3 people, payback period of 2-4 weeks, lowest risk.

Small teams with existing stable ore sources and needing to expand production → Choose 1200. An additional 1,000-2,000, but a 25% increase in daily output.

Medium-sized cooperatives with a daily output of 15 tons or more → Choose 1400. More significant economies of scale, lower grinding cost per ton.

The 1100 and 1200 are the two best-selling models in the Sudanese market. According to Ascend Mining industry data, "the small model is the 1100 and 1200 model, which is usually used in Sudan."

V. Supporting Equipment List: A complete small-scale gold processing line

The 1100 wet gold mill cannot operate independently; it requires crushing at the front end and grading at the back end. The following is a standard equipment setup for processing 8–10 tons of gold ore per day:

Note: If the ore has low hardness (e.g., oxidized gold ore, weathered ore), the hammer crusher can be omitted, and the jaw crusher discharge can be directly fed into the mill. If the mine has limited water resources, a circulating water system is recommended.

VI. Five Practical Questions Most Concerning Sudanese Mine Owners

Q1: Is the Baichy 1100 model stable in high-temperature desert environments?

A: The core transmission components of the Baichy 1100 model (gearbox, spindle bearings) use industrial-grade high-temperature resistant grease. No additional cooling measures are needed at ambient temperatures below 45°C. However, it is recommended to build a simple sunshade over the motor and gearbox area to prevent premature aging of the lubricating oil due to prolonged exposure to sunlight. The standard Baichy Y6L motor has an IP54 protection rating, which can resist sand and dust intrusion.

Q2: How often should the grinding wheels and grinding discs be replaced?

A: This depends on the hardness of the ore and the daily operating time. For processing medium-hard gold ore (Mohs hardness 5–6), running for 8–10 hours per day, a set of grinding wheels and grinding discs will have a lifespan of approximately 3–6 months. Baichy offers two material options: manganese steel and wear-resistant cast iron. The latter has a longer lifespan but is about 30% more expensive. It is recommended to purchase 1–2 extra sets of easily worn parts during the initial purchase.

Q3: Is amalgamation for gold extraction safe? Are there environmental restrictions in Sudan?

A: Amalgamation does involve the use of mercury. Currently, there are no strict regulations in Sudan, but global trends are tightening them. It is recommended to install a mercury vapor recovery hood (available from Baichy) to recover mercury vapor during the heating and distillation process. This protects operator health and reduces mercury consumption (recovered mercury can be reused 6-8 times). In the long term, upgrading to a small-scale cyanide leaching or flotation system can be considered.

Q4: How is the equipment transported to the mining area after arriving at Port Sudan?

A: The 1100 wet grinding mill can be disassembled into 4-5 main components (grinding disc base, grinding wheels x2, drive shaft, motor), with the largest single component weighing no more than 1.5 tons. It can be transported in sections using a pickup truck. Major gold mining areas in Sudan (Nile State, Red Sea State, Darfur) are accessible by unpaved roads. Baichy provides detailed installation videos and remote guidance via WhatsApp.

Q5: How long does it take to recoup the investment?

A: Based on a daily processing capacity of 8 tons, an ore grade of 3 g/t, and a recovery rate of 70%, the average daily gold production is approximately 16.8 grams. At a gold price of 80/g, the average daily revenue is approximately 1,344. After deducting labor costs (2 people × 10/day), diesel fuel (10/day), and mercury consumption (~5/day), the average daily net profit is approximately 1,319. Equipment investment: 5,000–6,000, with a theoretical payback period of approximately 4–5 days. Even considering ore grade fluctuations and equipment downtime, the actual payback period is typically 2–4 weeks.

VII. Summary: Why choose the Baichy 1100 wet gold mill?