1. Client Site & Harsh Slurry Working Condition Overview

1. Slurry Composition & Solid Concentration

1. Nickel oxide ore mixed with silica, iron oxide and magnesium silicate; weight solid concentration stably maintains 28%–32% under continuous 24h operation. High solid content brings strong continuous impact and friction to pump wet-end components.
2. Particle Size Distribution

1. D80 particle size reaches 0.8mm; partial coarse sharp ore particles up to 6mm exist in slurry flow. Angular hard silica particles cause severe cutting abrasion on pump liners and impellers.
2. Acidic Corrosion Environment

1. Weak sulfuric acid leaching system, slurry pH value 3.5–4.8, long-term medium contact leads to slow chemical corrosion on metal surfaces, accelerating wear part failure if material selection is improper.
2. Operation Demand

1. Continuous 24/7 non-stop operation, required flow rate 420–480 m³/h, delivery head 36–42m, stable conveying for hydrocyclone classification feeding without blockage or severe vibration.

2. Professional Condition Analysis & Customized Selection Solution: 8/6E-XXAH Pump + Material Matching Scheme

2.1 Model Advantage of 8/6E-XXAH

• Suction port 8 inch, discharge port 6 inch, maximum match power 260kW;
• Flow range 126–720 m³/h, head range 10–58m, perfectly covering client’s 450 m³/h @ 40m working point;
• Oversized E-type bearing assembly, strong load capacity, stable continuous operation under high solid slurry impact;
• Split double casing design, easy disassembly and wear part replacement, reducing mine maintenance labor cost.

2.2 Wet-End Material Selection: High-Chrome Alloy (Cr27 A05 Grade) Liner & Impeller

1. Why not natural rubber liner?

1. Rubber liner suits fine particles below 5mm and low impact condition; this mine contains 6mm sharp coarse ore grains, which will cut rubber surface rapidly. Besides, weak acid slurry will degrade rubber elasticity and cause swelling leakage within 2 months.
2. Why not silicon carbide ceramic parts temporarily?

1. Ceramic owns ultra-high hardness and wear resistance, but it is brittle under frequent coarse particle impact. For this high-flow hydrocyclone feeding duty with unstable instantaneous particle impact, ceramic faces risk of cracking, and spare part cost is 3 times higher than high chrome alloy, not cost-effective for the mine’s medium-term budget.
2. Advantages of Cr27 high-chrome alloy (HRC ≥60):

• Rich chromium carbide crystal structure, strong anti-cutting abrasion against sharp silica ore particles;
• Good medium acid resistance under pH 3.5–5 mild acid environment, slow corrosion rate compared with ordinary cast iron;
• Strong impact toughness, no crack failure under continuous coarse particle impact;
• Mature casting process, interchangeable standard Warman spare parts, fast local supply for Mongolia mining area.

3. Full-Set On-Site Installation & Commissioning Technical Support

1. Pre-delivery technical document support: We supplied full English operation manual, pump foundation drawing, pipeline layout standard, NPSH calculation report and spare part list to client’s mechanical team in advance;
2. Remote video installation guidance: Our senior mining engineer coordinated 3 rounds of real-time video communication to guide foundation leveling, pump horizontal calibration, suction/discharge pipeline gradient layout, motor alignment and sealing gap adjustment, avoiding air entrainment and slurry sediment blockage;
3. Startup commissioning parameter optimization: After pump trial run, we adjusted operating speed to 780rpm to hit the optimal efficiency working point 460 m³/h, 39m head; eliminated cavitation and abnormal vibration by optimizing suction pipe buffer structure;
4. Customized maintenance schedule: Delivered site-specific maintenance plan including weekly bearing grease filling, monthly liner thickness inspection and quarterly impeller clearance calibration, adapted to Mongolia’s cold outdoor mining environment.

4. Long-Term Operation Performance & Positive Client Feedback

1. Dramatically extended wear part service life

1. Original ordinary cast iron pumps needed monthly liner replacement; Cr27 high chrome alloy wet-end components only show slight uniform wear after half-year full-load operation, predicted replacement cycle extends to 8–10 months, cutting wear part procurement cost by over 65% yearly.
2. Sharply reduced unplanned downtime

1. Zero sudden pump breakdown shutdown in 6 months; monthly maintenance time drops from 16 hours to less than 3 hours, nickel ore daily processing capacity rises by 12% steadily.
2. Stable energy consumption & low leakage loss

1. Operating efficiency stays above 70% at rated working flow; expeller sealing structure solves acid slurry dripping issue completely, saving water and reducing workshop environmental corrosion.
2. Client official evaluation quote (from Mongolia mine mechanical superintendent):

1. “XINGOU Pump’s 8/6E-XXAH slurry pump perfectly matches our acidic high-concentration nickel slurry condition. Their engineering team deeply understood our mining pain points instead of selling standard pumps blindly. The high chrome alloy wear parts withstand both acid and coarse ore abrasion far better than our previous equipment. Remote installation guidance is efficient and professional, spare parts supply cycle is short. We plan to order 3 more identical pump sets for our new flotation workshop expansion.”

5. XINGOU Pump’s Core Service Advantage for Global Mining Clients

1. Customized condition-based selection: Analyze slurry concentration, particle size, pH, temperature and flow/head demand to match pump model + optimal wet-end material (high chrome alloy / rubber / ceramic optional);
2. Full interchangeable Warman XAH series pump: Complete compatibility with original Warman structure, universal spare parts, low replacement cost for global mines;
3. Global remote technical service: Multilingual engineering team provides drawing, calculation, video installation guidance and post-operation tracking for overseas mining clients in Mongolia, Russia, Southeast Asia, Africa and Latin America;
4. Long-term spare parts supply chain: Stock core high chrome alloy wear parts for fast delivery to remote mining areas.

Conclusion