CP1-40-P-10R HYTEK Internal Gear Pump 40cc 25MPa

Product Overview

The CP1-40-P-10R is a 40 cm³/rev fixed-displacement high-pressure internal gear pump used in industrial hydraulic power systems requiring stable flow delivery and high-pressure capability.

Industrial equipment documentation directly identifies CP1-40-P-10R as a hydraulic gear-pump configuration and associates it with a 40 mL/rev nominal displacement. Durma’s hydraulic shearing-machine documentation lists CP1-40-P-10R together with a 40 mL/rev pump configuration and a 31.5 MPa nominal hydraulic-pressure system.

Public CP-series technical information further specifies 25.0 MPa nominal pressure, 31.5 MPa peak pressure and 600–2500 rpm, with R indicating right-hand/clockwise rotation. The same public material describes axial and radial pressure compensation, optimized gear geometry, reinforced bearing support and low-pulsation operation.

Because a current OEM technical manual from HYTEK/SUNNY for the complete CP1-40-P-10R model was not located publicly, these figures should be treated as cross-verified public CP-series specifications, not misrepresented as a current OEM-certified datasheet.

For replacement applications, true interchangeability requires verification of displacement, rotation, shaft configuration, mounting pattern, ports, shaft extension and overall dimensions.

Technical Specifications

CP1-40-P-10R

• Model: CP1-40-P-10R
• Brand / Series: HYTEK / SUNNY CP1 Series
• Product Type: High-Pressure Internal Gear Pump
• Displacement Type: Fixed displacement
• Nominal Displacement: 40.0 cm³/rev
• Nominal Pressure: 25.0 MPa / 250 bar
• Peak Pressure: 31.5 MPa / 315 bar
• Public Series Speed Range: 600–2500 rpm
• Rotation: R = Right-Hand / Clockwise
• Control: Fixed mechanical displacement; no variable-displacement control
• Shaft Options: Public CP-series data lists P-type keyed or splined shaft configurations; the exact shaft for the complete CP1-40-P-10R must be verified.
• Mounting Options: Public CP-series data lists SAE 2-bolt or 4-bolt mounting options; the exact mounting pattern must be verified for the supplied configuration.
• Maximum Speed: 2500 rpm, based on public CP-series data
• Minimum Speed: 600 rpm, based on public CP-series data
• Weight: Not independently verified from a reliable OEM public source
• Housing Material: Not reliably verified from an OEM public source
• Gear Material: Not reliably verified from an OEM public source
• Theoretical Flow at 1500 rpm: approximately 60 L/min
• Theoretical Flow at 2500 rpm: approximately 100 L/min
• Testing: Replacement units can undergo 100% simulated working-condition testing based on the original hydraulic system.

Model Range Context

Public CP-series sources also identify:

• CP0-08-P-10R
• CP0-10-P-10R
• CP0-13-P-10R
• CP0-16-P-10R
• CP0-20-P-10R
• CP1-25-P-10R
• CP1-32-P-10R
• CP1-40-P-10R
• CP1-50-P-10R
• CP1-63-P-10R
• CP2-80-P-10R
• CP2-100-P-10R
• CP2-125-P-10R
• CP2-160-P-10R

These model numbers appear in public CP-series product and equipment documentation.

Key Technical Advantages

1. High-Pressure Fixed Displacement

The CP1-40-P-10R provides a fixed theoretical displacement of 40 cm³/rev, making it suitable for hydraulic systems requiring stable pump output without variable-displacement control.

Public CP-series documentation specifies 25 MPa nominal pressure and 31.5 MPa peak pressure.

2. Axial and Radial Pressure Compensation

Public technical information describes both axial and radial pressure-compensation mechanisms. Such compensation helps control internal operating clearances as pressure changes, reducing leakage and supporting volumetric efficiency.

For a gear pump, management of axial end-face clearance and gear-chamber leakage is directly related to efficiency and thermal behavior.

3. Reduced Flow Pulsation

The CP-series design is described as using optimized gear geometry to minimize fluid trapping and flow pulsation. This is particularly useful in industrial equipment where stable actuator movement and pressure response are important.

4. 40 cm³/rev Flow Capacity

With a displacement of 40 cm³/rev:

40 × 1500 ÷ 1000 = 60 L/min

and:

40 × 2500 ÷ 1000 = 100 L/min

These are theoretical displacement-flow values. Actual delivery depends on volumetric efficiency, pressure, speed and hydraulic-fluid viscosity.

5. Right-Hand Rotation

The R designation is identified in public CP-series information as Right-Hand / Clockwise rotation. Correct rotation is critical because it determines the pump’s suction and delivery behavior.

A left-hand version with the same displacement cannot simply be substituted without checking the hydraulic circuit.

6. Proven Industrial Application

CP1-40-P-10R is directly identified in industrial shearing-machine documentation, where it forms part of the hydraulic power system.

This supports its application in industrial hydraulic power units and machinery rather than treating it as a generic gear-pump model.

Application Areas

Typical applications include:

• Hydraulic shearing machines
• Metal-forming equipment
• Industrial hydraulic power units
• Injection molding machinery
• Rubber-processing machinery
• Hydraulic balers
• Material-handling systems
• Industrial lifting equipment
• Hydraulic power packs
• Auxiliary hydraulic circuits

Public CP-series product information specifically associates the series with injection molding machines, rubber-processing equipment, hydraulic balers, forklifts, material handlers, loaders and machine-tool lubrication systems.

Expert Maintenance Tips

1. Prime the Pump Before Full Load

Before commissioning, fill the pump and suction circuit with clean hydraulic fluid. Start at low speed and low load so the pump can establish stable suction and discharge conditions before entering full-duty operation.

2. Verify Rotation

R indicates right-hand/clockwise rotation in the public CP-series coding information. Verify motor rotation against the original pump before startup.

3. Prevent Air Ingress on the Suction Side

Poor inlet sealing can introduce air into the hydraulic circuit, increasing noise and cavitation risk and potentially damaging the gear and bearing areas. Public maintenance guidance specifically emphasizes a properly sealed suction connection.

4. Manage Hydraulic-Oil Viscosity

Public CP-series information recommends ISO VG 32 or ISO VG 46 anti-wear hydraulic oil and highlights the importance of maintaining appropriate operating temperature.

Final oil selection should follow the host-machine manufacturer’s requirements and ambient conditions.

5. Keep Peak Pressure Separate From Continuous Pressure

Public CP-series data identifies 25 MPa as nominal pressure and 31.5 MPa as peak pressure. Long-term hydraulic-system design should be based on the permissible continuous-duty pressure rather than operating continuously near the peak limit.

6. Maintain Hydraulic Cleanliness

The gear mesh, bearing interfaces and pressure-compensation elements depend on controlled internal clearances. Contaminated oil can accelerate wear, enlarge clearances and reduce volumetric efficiency.

7. Verify the Complete Replacement Interface

Before installing a replacement CP1-40-P-10R, verify:

• 40 cm³/rev displacement
• Right-hand rotation
• Keyed or splined shaft
• SAE 2-bolt or 4-bolt mounting
• Suction port
• Delivery port
• Shaft extension
• Mounting dimensions
• Overall pump length
• Operating speed
• Continuous operating pressure

The complete CP1-40-P-10R character string has not been sufficiently documented in a currently accessible OEM coding table, so the original nameplate and dimensional interface should be treated as the final authority.