Marzocchi ALP1 ALP2 ALP3 Series Hydraulic Gear Pump | ALP2BK1.D-6 | ALP3-D-94

The Marzocchi ALP Series from LIC Hydraulic represents the pinnacle of High-Performance Aluminum Gear Pump technology. Covering a vast displacement range from the compact ALP1 to the powerful ALP3, these pumps are engineered with a high-strength extruded aluminum alloy body and robust cast iron flanges. Models such as ALP2BK1.D-6 and ALP3-D-94 are industry favorites for their exceptional power-to-weight ratio. We provide 100% drop-in replacements, ensuring precise mechanical alignment with all European and SAE mounting standards.

Technical Highlights

• Series Groups: ALP1 ($1.4\text{–}13.8\text{ cc}$), ALP2 ($4.5\text{–}35.2\text{ cc}$), ALP3 ($20.0\text{–}94.0\text{ cc}$).

• Max Pressure: Continuous duty up to $250\text{ bar}$ ($3625\text{ psi}$), depending on group.

• Material: High-tensile aluminum alloy body with iron mounting flanges.

• Design: Pressure-balanced axial compensation for maximum efficiency.

Core Advantages

• Industry-Leading Efficiency: The axial pressure-balancing system maintains minimal clearance between the gear faces and the side plates, ensuring stable flow even at elevated temperatures and peak pressures.

• Quiet & Smooth Operation: Precision-shaved gear profiles reduce mechanical vibration and hydraulic ripple, meeting strict indoor noise regulations for factory automation.

• Versatile Mounting Configurations: Available in a wide array of shafts (tapered, splined, or keyed) and flanges (European standard, SAE A/B), allowing for immediate installation into existing power units.

• Durable Lightweight Construction: The extruded aluminum body offers superior heat dissipation while significantly reducing the total weight of the hydraulic system, crucial for mobile and airborne equipment.

Expert Maintenance Tips

• Fluid Compatibility: While ALP pumps are robust, ensure the use of high-quality anti-wear (AW) mineral oils. For special fluids like water-glycols, please specify during ordering to ensure compatible seals are installed.

• Rotation Verification: Always verify the “R” (Clockwise) or “D” (Counter-clockwise) rotation against your motor. Attempting to run an ALP pump in the wrong direction will result in immediate internal seal failure.

• Filtration Standard: To protect the precision-lapped side plates, maintain a fluid cleanliness level of ISO 18/16/13. Particle contamination is the primary cause of internal scoring and efficiency loss in aluminum pumps.