NBZ Series Servo Hydraulic Pump | NBZ5-G100F, NBZ4-G63F, NBZ2-G10F | Internal Gear Pump

NBZ Series High-Performance Servo Internal Gear Pumps

Product Overview: The NBZ Series represents the powerhouse of modern variable-speed servo hydraulic systems. As ultra-quiet, high-pressure internal gear pumps, they are specifically engineered for premium machinery such as injection molding machines (IMM), die-casting machines, and high-end CNC equipment. This featured range includes the entire core lineup: precision specs NBZ2-G10F, medium flow models NBZ4-G40F, NBZ4-G50F, NBZ4-G63F, and the high-capacity NBZ5-G80F, NBZ5-G100F, NBZ5-G125F, and NBZ5-G160F. Their unique gap-compensation technology ensures exceptional pressure stability and minimal operational noise under fluctuating servo conditions.

Key Technical Advantages:

• Servo Drive Optimization: Purpose-built for the frequent acceleration and deceleration cycles of servo motors. It supports stable high-pressure holding at ultra-low speeds—essential for high-precision, energy-saving hydraulic circuits.

• Dual Gap Compensation: Featuring automated axial and radial pressure compensation, maintaining volumetric efficiencies over 95% throughout the pump’s service life, effectively reducing oil overheating.

• Ultra-Quiet & Low Pulsation: The specialized internal meshing gear profile delivers decibel levels far lower than traditional external pumps. Minimal pressure ripples drastically reduce system vibration, protecting downstream precision valves.

• 100% Direct Replacement: Strictly adheres to international industrial standards. Mounting flanges and shaft ends (keyed/splined) are 100% compatible with major machinery brands like Haitian and Chen Hsong for a seamless installation.

• Heavy-Duty Pressure Resilience: The reinforced cast iron housing allows for stable operation at 31.5 MPa (315 Bar) continuous pressure, offering superior fatigue resistance in heavy-duty cycles.

Detailed Models & Parameters:

• Core Series: NBZ2, NBZ4, NBZ5 Performance Series.

• Model Keywords: NBZ2-G10F, NBZ5-G100F, NBZ4-G40F, NBZ4-G50F, NBZ5-G80F, NBZ5-G160F, NBZ4-G63F, NBZ5-G125F.

• Displacements: Covering a full range from 10cc/rev up to high-flow 160cc/rev.

• Pressure Ratings: Rated at 31.5 MPa (315 Bar); Peak pressure up to 35 MPa (5075 PSI).

• Target Applications: Energy-saving servo injection molding machines, CNC bending machines, precision presses, and automated industrial Hydraulic Power Units (HPU).