The HAZ Series Advantage: Built for Abrasive Slurry and Mining Applications
The BJM Pumps HAZ Series is purpose-built for the harsh demands of mining and slurry handling applications. Designed specifically for abrasive coal slurries, these pumps feature hardened materials and an integrated agitation system to maintain consistent performance in environments where wear and solids buildup are constant challenges.
Available in both MSHA Part 7 (pump only) and Part 18 (pump with controls) configurations, the HAZ Series delivers reliable, compliant operation for underground mining and other hazardous locations.
Engineered for Abrasion Resistance and Solids Handling
The HAZ Series is constructed with high-chrome iron components throughout the wet end, including the semi-open impeller, wear plate, and agitator. This material selection provides superior resistance to abrasive wear, helping extend pump life in demanding slurry environments.
A built-in agitator continuously mixes settled solids, allowing the pump to restore sump capacity and maintain consistent flow. This reduces downtime and improves operational efficiency in applications where solids tend to accumulate.
Key Features & Benefits
- Abrasion-Resistant Design: High-chrome iron (28%) components resist wear in abrasive slurry applications
- Integrated Agitator System: Keeps solids suspended and improves pumping efficiency
- MSHA Compliance Options: Available as Part 7 (pump only) or Part 18 (with controls)
- Heavy-Duty Construction: Hardened ductile iron volute and cast components ensure durability
- Thermal Overload Protection: Built-in safeguards protect the motor from overheating
- Continuous-Duty Operation: Designed for demanding mining and slurry environments
Built for Mining and Harsh Environments
The HAZ Series uses a rugged 4-pole motor design operating at approximately 1750 RPM, providing dependable torque and efficiency in heavy slurry applications. Class H motor insulation supports high-temperature operation, while dual mechanical seals protect internal components from contamination.
With robust construction and industry-specific design, these pumps are built to operate reliably in underground and abrasive conditions where standard pumps would quickly fail.
Performance Specifications
- Horsepower (HP): 5 to 10 HP
- Max Flow: Up to ~655 GPM
- Max Head: Up to ~69 ft
- Max Solids Handling: Up to 1 in (25 mm depending on model)
- Voltage Options: 230V / 460V / 575V, 3-phase
- Motor Type: 4-pole, ~1750 RPM
- Max Liquid Temperature: 104°F
Typical Services & Ideal Applications
The HAZ Series is specifically designed for abrasive slurry applications, particularly in mining operations. These pumps are ideal for coal slurry handling, sump cleaning, and dewatering processes where solids must remain suspended and wear resistance is critical.
Their ability to handle heavy solids while resisting abrasion makes them a reliable solution for demanding industrial environments where performance and uptime are essential.

