IGP3-H016 KXG Internal Gear Pump 16cc 25MPa

Product Overview

The IGP3-H016 is a high-pressure straight-line conjugate internal gear pump designed for demanding industrial hydraulic systems where low noise, reduced pressure pulsation and reliable high-pressure operation are required.

Available product documentation describes the IGP high-pressure range as using a straight-line conjugate internal gear profile designed to minimize trapping effects and reduce flow pulsation. The design also applies axial and radial pressure compensation to improve operating efficiency and control internal clearances under pressure.

The published high-pressure IGP range includes IGP3-H06F, IGP3-H08F, IGP3-H10F, IGP3-H12F and IGP3-H16F, with a documented 25 MPa rated pressure and 32 MPa maximum pressure. The product family is listed for applications including injection molding machines, plastic machinery, machine tools, rubber vulcanizing equipment, die-casting machinery and other industrial hydraulic systems.

An important model-identification point is that public sources use both IGP3-H016 and IGP3-H16F naming. Therefore, the complete nameplate and mechanical interface should be verified before claiming a direct drop-in replacement.

Technical Specifications

IGP3-H016

• Model: IGP3-H016
• Product Type: High-Pressure Internal Gear Pump
• Gear Principle: Straight-Line Conjugate Internal Gear
• Series: IGP High-Pressure Series
• Nominal Displacement: approximately 16 cm³/rev
• Rated Operating Pressure: 25 MPa
• Maximum Pressure: 32 MPa
• Displacement Control: Fixed displacement, mechanically driven
• Rotation: Must be verified from the complete original model and nameplate
• Mounting: Exact mounting configuration requires confirmation from the complete model
• Hydraulic Connections: Exact port configuration requires confirmation
• Maximum Speed: Not independently verified for the exact IGP3-H016 configuration; no unsupported rpm value is stated
• Weight: Not independently verified from sufficiently reliable public technical documentation
• Hydraulic Fluid: Hydraulic oil according to the applicable manufacturer and system requirements
• Theoretical Flow at 1500 rpm: approximately 24 L/min based on 16 cm³/rev theoretical displacement
• Replacement Testing: Our replacement units can undergo 100% simulated working-condition testing based on the original system’s pressure, speed, oil temperature and installation conditions.

Data integrity note: The publicly supported engineering values for the high-pressure IGP3-H016 family are approximately 16 cm³/rev, 25 MPa rated pressure and 32 MPa maximum pressure. Exact speed, weight and complete suffix coding are intentionally not inferred without sufficient source evidence.

Key Technical Advantages

1. Straight-Line Conjugate Gear Profile

The straight-line conjugate internal gear geometry is designed to reduce trapping effects during gear meshing. This contributes to lower flow pulsation and reduced hydraulic noise, particularly under higher operating pressures.

2. Axial and Radial Pressure Compensation

The high-pressure IGP design uses axial and radial pressure-compensation principles to control internal operating clearances. In an internal gear pump, clearance management directly influences leakage, volumetric efficiency and thermal performance.

3. High-Pressure Capability

The published high-pressure IGP family is specified at 25 MPa rated pressure and 32 MPa maximum pressure. These values should be treated according to their intended duty definitions; maximum pressure must not automatically be interpreted as a continuous operating point.

4. Low-Noise Hydraulic Operation

The internal gear arrangement and conjugate tooth geometry are intended to reduce pressure pulsation and trapping effects. This makes the technology particularly attractive for hydraulic equipment where noise and smooth flow are important, including injection molding and machine-tool applications.

5. Wear-Resistant Engineering Approach

Available manufacturer information refers to special materials and treatment processes intended to improve wear resistance and service life. Because the publicly available documentation does not disclose verified material grades or heat-treatment specifications, no specific steel grade is claimed here.

6. Suitable for Higher-Speed Duty

The product information specifically identifies the IGP design as suitable for relatively high-speed applications. However, an exact maximum rpm should be selected only from the complete model and application data rather than inferred from the general series description.

Application Areas

Typical applications for IGP3-H016 include:

• Injection molding machines
• Plastic processing machinery
• Rubber vulcanizing presses
• Die-casting machinery
• Pipe and tube bending machines
• Shearing and cutting machinery
• Precision machine tools
• Industrial hydraulic power units
• Metallurgical equipment
• Mining machinery
• Construction machinery
• Electric forklifts and mobile hydraulic systems

Published information for the high-pressure IGP family specifically identifies injection molding machines, testing machines, rubber presses, die-casting machines and machine tools among the target applications.

For injection molding applications, engineering selection should consider not only nominal pressure and displacement but also rapid flow changes, pressure-holding stages, motor speed, pump noise and system temperature.

Expert Maintenance Tips

1. Prime and Vent Before Full-Load Operation

Before commissioning, ensure the suction line and pump chamber are properly filled with hydraulic fluid. Start under controlled low-pressure conditions and remove trapped air before applying full load.

2. Minimize Suction-Line Resistance

An undersized suction line, clogged filter or excessive oil viscosity can restrict inlet conditions. High-speed internal gear pumps require particular attention to suction pressure and inlet-line flow velocity.

3. Maintain Hydraulic Cleanliness

Contaminants entering the gear chamber can accelerate wear on the tooth surfaces and pressure-compensation interfaces. Good filtration and disciplined fluid maintenance are essential for preserving volumetric efficiency and service life.

4. Do Not Run Continuously at 32 MPa

The published high-pressure IGP family specifies 25 MPa rated pressure and 32 MPa maximum pressure. System relief protection and long-term duty calculations should be based on the permitted continuous operating condition rather than the maximum pressure value.

5. Verify Dynamic Conditions During Injection-Molding Replacement

For injection molding machines, replacement engineering should verify:

• Displacement
• Operating pressure
• Motor speed
• Rotation direction
• Shaft extension
• Mounting flange
• Suction port
• Delivery port
• Mounting dimensions
• Overall pump length

Static dimensional matching alone is not sufficient for a reliable hydraulic replacement.

6. Verify the Complete Model Suffix

Both IGP3-H016 and IGP3-H16F naming forms can be found in public sources. Because the complete coding relationship is not sufficiently documented for every historical variant, the original nameplate should be used for final interchangeability verification.