SUMITOMO，QT62-125E-SV-Z

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

4 year

Product details

I. Core Specifications

• Model: QT62-125E-SV-Z

• Displacement: 125 cc/rev

• Rated Pressure: 25 MPa (supports higher pressures in specific applications)

• Speed Range: Designed for medium-to-high-speed operation; exact speed depends on working conditions.

• Structure Type: Internal gear pump with double straight-tooth gears, optimized with an end-face clearance compensation system.

II. Performance Characteristics

1. High Efficiency & Stability

• Volumetric efficiency ≥95%, minimizing energy loss for sustained high-pressure output.

• Floating side plate design in high-pressure zones reduces internal leakage, ensuring stable performance.

2. Low Noise Operation

• Noise level controlled below 70 dB(A), outperforming similar products—ideal for noise-sensitive environments (e.g., indoor equipment, nighttime operations).

• Precision gear meshing minimizes vibration and impact.

3. Wear Resistance & Durability

• Housing made of high-strength ductile iron (FCD450) for superior impact resistance.

• Carburized steel gears with surface hardness of HRC 60-62 extend service life.

4. Strong Adaptability

• Compatible with hydraulic oils of varying viscosities (recommended ISO VG 46-68) and operating temperatures (0°C–60°C).

• Optimized suction port design enhances self-priming capability, reducing cavitation risk.

III. Typical Applications

1. Construction Machinery

• Powers vibratory rollers by supplying stable high-pressure oil to vibration wheels, ensuring optimal compaction.

• Integrates with excavators and loaders to drive travel or working attachments.

2. Industrial Equipment

• Injection molding machines: Controls mold opening/closing and injection actions for precision forming.

• Forging machinery: Provides hydraulic pressing force for metal shaping.

3. Specialized Fields

• Elevator systems: Drives hydraulic lifting mechanisms for smooth operation.

• Agricultural machinery: Supports hydraulic power in combines and sprayers.

IV. Technical Advantages

• Low Pressure Pulsation Design: Optimized gear tooth profile and pump body structure minimize pressure fluctuations, enhancing system stability.

• Modular Design: Simplifies maintenance and component replacement, reducing downtime.

• High Compatibility: Integrates seamlessly with various hydraulic valve groups and motors to meet diverse system requirements.

V. Selection & Usage Recommendations

1. Match Working Conditions: Select displacement based on required flow and pressure to avoid overloading or inefficiency.

2. Fluid Management: Regularly replace hydraulic oil and filters to prevent contaminant-induced wear on gears and seals.

3. Proper Installation: Ensure rigid mounting base for the pump; align drive shaft with motor shaft within ≤0.05mm tolerance.

4. Temperature Control: Maintain hydraulic oil temperature ≤60°C; add cooling systems if necessary.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

Audited supplier

4 year

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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