CP0-08-P-10R HYTEK Gear Pump 8cc 320bar 3000rpm

Product Overview

The CP0-08-P-10R、CP1-25-P-10R、CP2-100-P-10 and CP2-80-P-10R are internal gear pumps from the HYTEK CP series. The CP0 series covers displacements from 8 to 20 cm³/rev；the CP1 series from 25 to 63 cm³/rev；and the CP2 series from 80 to 160 cm³/rev.

The CP series is based on the internal gear principle—the internal gear drives the external gear in the same direction, creating negative pressure at the inlet to draw fluid in, and compressing fluid at the outlet through gear meshing. The unique “crescent” plate separates the suction and pressure chambers. Featuring axial and radial pressure compensation technology, the pump maintains high volumetric efficiency even at low speeds and low viscosities.

Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability. Each pump undergoes rigorous 100% simulated duty-cycle testing to validate pressure-flow-efficiency performance curves.

Brand Disclaimer: This product is a high-quality compatible replacement engineered for full interchangeability with HYTEK original equipment. All HYTEK brand names and model codes are referenced solely to indicate compatibility and interchangeability. This product is manufactured by an independent producer and is not an original HYTEK product.

Technical Specifications 

CP Series General Specifications

• Brand Series: HYTEK CP Series Internal Gear Pump

• Product Type: Fixed Displacement Internal Gear Pump

• Rated Pressure: 32 MPa (320 bar) 

• Peak Pressure: 35 MPa (350 bar) 

• Speed Range: 600 – 3,000 r/min

• Rotation Direction: Right-hand (Clockwise / R)

• Pressure Compensation: Axial + Radial pressure compensation

• Noise Level: Ultra-low noise design

• Pulsation: Extremely low flow and pressure pulsation

• Housing Material: High-strength cast iron

• Hydraulic Fluid: Mineral oil

• Viscosity Range: 0.2 – 1,000,000 cp

• Operating Temperature: -20°C to +80°C

• Multi-Pump: Tandem pump combinations available

CP0-08-P-10R

• Frame Size: CP0 (Group 0)

• Displacement: 8 cm³/rev

• Rated Pressure: 32 MPa (320 bar)

• Peak Pressure: 35 MPa (350 bar)

• Speed Range: 600 – 3,000 r/min

• Rotation: Right-hand (Clockwise / R)

CP1-25-P-10R

• Frame Size: CP1 (Group 1)

• Displacement: 25 cm³/rev

• Rated Pressure: 32 MPa (320 bar)

• Peak Pressure: 35 MPa (350 bar)

• Speed Range: 600 – 3,000 r/min

• Rotation: Right-hand (Clockwise / R)

CP2-100-P-10 / CP2-80-P-10R

• Frame Size: CP2 (Group 2)

• Displacement (CP2-100) : 100 cm³/rev

• Displacement (CP2-80) : 80 cm³/rev

• Rated Pressure: 32 MPa (320 bar)

• Peak Pressure: 35 MPa (350 bar)

• Speed Range: 600 – 3,000 r/min

• Rotation: Right-hand (Clockwise / R)

Key Technical Advantages

1. Axial & Radial Pressure Compensation – High Efficiency

Innovative axial and radial pressure compensation technology maintains high volumetric efficiency even at low speeds and low viscosities. The compensation mechanism automatically adjusts gear end and radial clearances, ensuring stable flow output across the full pressure range.

2. Ultra-Low Noise & Minimal Pulsation

High-strength cast iron with internal sound-dampening design，combined with modified involute, short-tooth internal gear geometry，delivers ultra-low noise and extremely low flow and pressure pulsation. Ideal for noise-sensitive injection molding workshop environments.

3. High-Pressure Rating – Industrial-Grade Durability

Rated pressure of 32 MPa (320 bar) and peak pressure of 35 MPa (350 bar) . The high-strength cast iron housing with precision pressure compensation ensures long-term reliability under high-pressure, high-frequency, continuous-duty operations.

4. Ultra-Wide Viscosity Range

Viscosity range from 0.2 to 1,000,000 cp. Stable operation from low-viscosity hydraulic fluids to high-viscosity media—one pump for diverse application requirements.

5. Excellent Contamination Resistance & Long Service Life

Insensitive to fluid contamination with excellent wear resistance，significantly extending service life. Simple structure for easy maintenance.

6. Modular Design – Flexible Multi-Section Expansion

CP series supports tandem pump combinations. Flexible configurations adapt to different injection molding machine flow requirements.

7. 100% Simulated Duty-Cycle Testing

Every pump is 100% tested on dedicated hydraulic test benches under simulated real-world operating conditions—validating pressure-flow characteristics and efficiency curves at rated pressure (320 bar), peak pressure (350 bar), and full speed range—ensuring zero-defect, plug-and-play performance upon installation.

Application Areas

• Injection Molding Machines: Servo hydraulic systems, energy-efficient oil pump systems

• Die Casting Machines: High-pressure hydraulic systems

• Shearing & Bending Machines: Hydraulic systems

• Forklifts: Hydraulic systems

• Industrial Hydraulic Machinery: Fixed hydraulic systems requiring low noise, high pressure, and high reliability

Expert Maintenance Tips

1. Fluid Cleanliness Control

Internal gear pumps have relatively low sensitivity to contamination, but maintain system fluid cleanliness to ISO 4406 19/17/14 or better as good practice. Install a ≤10 μm absolute filtration filter upstream of the inlet port.

2. Inlet Line Requirements

Keep suction lines short and straight with adequate diameter—not less than the port size. Inlet pressure must be maintained between 0.8 – 2.0 bar (absolute) to prevent cavitation that could damage the internal ring gear and crescent plate assembly.

3. Coupling Alignment Precision

Ensure pump shaft-to-drive shaft coaxiality deviation ≤0.05 mm and angular deviation ≤0.5° during installation. Flexible couplings are strongly recommended.

4. First-Start Priming Procedure

Before initial startup, thoroughly bleed air through the drain port or a loosened outlet fitting. Perform 2–3 jog starts under no-load conditions (outlet open) until oil fills the pump cavity without air bubbles, then connect the load circuit for full operation.

5. Viscosity & Speed Matching

Viscosity range: 0.2 – 1,000,000 cp. Speed range: 600 – 3,000 r/min. During cold starts when viscosity is high, ensure adequate suction conditions or preheat the fluid.

6. Rotation Direction Confirmation

The “R” suffix indicates right-hand (clockwise) rotation. Always verify that the drive motor/engine rotation matches the pump before installation.