Voith IPV IPN IPC IPM Series Hydraulic Gear Pump | IPN 6/5-125/100 | IPN 125 101

The Voith IP Series Compatible internal gear pumps from Chengyuan Hydraulic are high-end power components designed for high-pressure, low-noise industrial environments. This series includes Standard (IPV), Medium Pressure (IPN), High Pressure (IPC), and High-Density (IPM) models. We specialize in producing complex multi-stage combination pumps (e.g., IPN/6-/125 or IPC6-80-101), offering 100% original-place interchangeability with OEM Voith pumps. Through 100% simulated condition testing, our pumps deliver exceptional volumetric efficiency and longevity in plastic machinery, stamping presses, and servo-drive systems.

Technical Specifications :

• Core Series: IPV (IPV3, 4, 5, 6, 7), IPN, IPC, IPM, IPVP

• Displacement Range: 3.5 $cm^3/rev$ to 250 $cm^3/rev$

• Rated Pressure: Up to 330 bar (For IPC Series)

• Peak Pressure: Up to 345 bar

• Speed Range: 400 rpm – 3600 rpm (Ideal for variable speed servo drives)

• Configurations: Single, Double, Triple, or Multi-stage combinations (e.g., IPN 6/5-125/100-101)

• Viscosity Range: 10 – 300 $mm^2/s$

• Noise Level: 60 – 75 dB(A) (Ultra-quiet operation)

Key Technical Advantages:

• Radial & Axial Gap Compensation: Features a floating side-plate and pressure-assisted compensation design. As pressure rises, internal clearances are automatically tightened, ensuring over $90\%$ volumetric efficiency even at pressures exceeding 300 bar.

• Minimal Flow Ripple & Noise: The specialized gear tooth profile (combination of involute and cycloid) reduces flow ripple by nearly $50\%$. This enhances machining precision and significantly lowers system noise caused by hydraulic shock.

• Optimized for Servo Drives: With low rotational inertia and excellent low-speed start-stop characteristics, the IP series is perfect for servo-pump control systems (e.g., servo injection molding machines), enabling precise closed-loop pressure and speed control.

• Modular Multi-Stage Capability: Chengyuan supports flexible multi-stage configurations. Using a patented shaft coupling design, multiple IP pumps can be connected in series to provide synchronized multi-circuit output, saving significant installation space.

Application Areas:

• Industrial Machinery: Servo injection molding machines, die-casting machines, hydraulic press brakes, and shears.

• Material Handling: Marine deck machinery and automated warehouse lifting systems.

• Energy Sector: Steam turbine lubrication and hydraulic speed governor stations.

Expert Maintenance Tips:

• Multi-Stage Installation: When installing multi-stage units like IPN/6-/125, verify that the suction pipe diameter for each stage meets flow requirements to prevent cavitation in the rear stages.

• Filtration Standard: Internal gear pumps have tight tolerances. We recommend high-precision filters (at least 10 $\mu m$) to maintain oil cleanliness at NAS 7 or better.

• Air Bleeding: Before the initial startup, bleed air from the pump casing via the highest bleed plug. Running the pump with air trapped inside (cavitation) will rapidly damage the compensation plates.