As a classic heavy-duty model of AH horizontal slurry pump series, the 3/2C-AH slurry pump adopts enlarged C-frame bearing assembly, supporting higher power and larger radial load compared with small B-frame pumps. Stable hydraulic performance and interchangeable wear-resistant components make it widely used in ball mill discharge, hydrocyclone feeding and medium-distance tailings transfer in mineral plants. Mastering complete 3/2C-AH slurry pump technical parameters and scientific site matching standards can avoid model mismatch, reduce rapid abrasion of 3/2C-AH wear parts and improve the long-term operation efficiency of every mining slurry pump. XO Slurry Pump (www.xoslurrypump.com) sorts out full parameter tables, material selection rules and on-site application matching schemes for reference by plant engineers.

Core Structural Advantages of 3/2C-AH Heavy-Duty Slurry Pump

The model code 3/2C-AH represents core specifications: 3-inch discharge port, 2-inch suction port, heavy-duty C bearing frame, AH heavy abrasion slurry pump series. Different from light-duty models, its large-diameter cantilever shaft and thickened bearing cartridge bear high vibration impact from coarse ore slurry, extending bearing service cycle by more than 50%. Double split pump casing allows quick replacement of wet end liners without removing pipelines, greatly simplifying daily maintenance of the heavy-duty slurry pump. Three optional shaft seal structures (packing seal, expeller seal, mechanical seal) adapt to different water supply and leakage control requirements on site.Image 1: Complete Assembly Drawing & Exploded View of 3/2C-AH Slurry Pump 

Full Standard Technical Parameter Table of 3/2C-AH Slurry Pump

Alt Text: Hydraulic performance curve of 3/2C-AH slurry pump for flow, head and efficiency parameter selection

Two Main Wet End Material Configurations & Corresponding Site Matching

The service life of 3/2C-AH wear parts directly depends on material matching with slurry characteristics; two mainstream configurations cover most mining working conditions:

1. High Chrome Alloy A05 Metal Lined Type Core components (impeller, volute liner, throat bush) adopt Cr27 high-chrome cast iron with hardness HRC58~62. Strong anti-impact and anti-cutting abrasion performance, suitable for ball mill discharge, coarse tailings transfer, sand and gravel conveying with hard sharp particles. This is the standard configuration of most metal mine cyclone feed pump.

2. Natural Rubber Lined 3/2C-AHR Variant Elastic rubber absorbs fine particle impact and resists mild acid and alkali corrosion. Ideal for flotation froth circulation, fine particle tailings and coal washing dense medium slurry. Not recommended for working conditions containing oversized sharp gravel, which will tear rubber liners quickly.

Four Classic Mining Application Scenarios & Matching Standards

1. Ball Mill / Rod Mill Discharge

Matching scheme: High chrome alloy 3/2C-AH + expeller seal + medium speed. Coarse grinding ore slurry brings strong abrasion and impact; C-frame heavy bearing reduces vibration damage during continuous 24-hour operation.

2. Hydrocyclone Feeding (Core Matching Scenario)

Matching scheme: High chrome alloy wet parts + mechanical seal. Stable high head ensures consistent classification efficiency of cyclone group, the most widely used working condition for this AH series model.

3. Medium-Distance Tailings Transfer

Matching scheme: High chrome wear parts + belt CV drive for adjustable speed. Control slurry solid concentration below 60% to avoid overload and premature wear of impeller.

4. Flotation Workshop Fine Froth Circulation

Matching scheme: Rubber lined 3/2C-AHR + packing seal. Elastic rubber resists chemical reagent corrosion and reduces slurry noise during circulation.

Key Parameter Matching Mistakes to Avoid

1. Blindly select high rotating speed for high head demand: Excessive speed accelerates abrasion of 3/2C-AH wear parts, shorten service cycle by more than half.

2. Match rubber liner for coarse grinding discharge slurry: Sharp quartz particles cut rubber lining in short term, increasing spare parts replacement cost.

3. Ignore NPSHr index and install pump at high suction position: Continuous cavitation leads to impeller pitting and unstable flow of the whole mining slurry pump.

Daily Operation Tips to Protect 3/2C-AH Slurry Pump

Regularly measure the residual thickness of liners and impellers every two weeks; replace wear parts timely when exceeding abrasion limit. Maintain bearing lubrication cycle, adopt grease lubrication for low-speed working conditions and thin oil lubrication for high-speed continuous operation. Clean large foreign matters in sump before startup to prevent hard blocks entering pump cavity and damaging internal components.

Conclusion

Complete parameter mastering and targeted site matching are the core to maximize the performance of the 3/2C-AH slurry pump. Reasonable selection of high chrome alloy or rubber lined wear parts according to particle size, abrasion and medium chemical properties can eliminate frequent equipment faults and cut comprehensive operation cost of mineral processing plants. As a mature medium-flow heavy-duty model in AH series, it remains the preferred cyclone feed pump and mill discharge conveying equipment for medium and small mineral separation lines.XO Slurry Pump supplies complete interchangeable 3/2C-AH slurry pumps and full set original wear-resistant spare parts. Visit www.xoslurrypump.com to obtain parameter calculation and customized site matching technical solutions.