KYB PSVD2-17E-23

KYB PSVD2-17E-23

3 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

KYB PSVD2-17E-23 PISTON PUMP Full Specification

1. Product Introduction

PSVD2-17E-23 is an integrated variable Hydraulic piston pump manufactured by Japan KYB, serving as the original main hydraulic pump for 4-5.5 ton mini excavators. It combines main pumping unit, built-in pilot gear pump and electronic proportional solenoid valve in one assembly, supplying main hydraulic power and pilot control oil for the complete machine’s whole hydraulic system. Equipped with LS load sensing & constant horsepower compound control, it automatically adjusts displacement according to working load to stabilize the performance of the entire hydraulic system, widely fitted on Yanmar VIO45/VIO50/VIO55 excavators.

2. Model Definition

- PSVD2: 2nd generation compact piston pump series for mini excavators

- 17: Basic size code with 17cc/rev theoretical displacement

- E: Version with electronic proportional control solenoid

- 23: OEM customized calibration code for Yanmar exclusive use, non-interchangeable with PSVD2-17E-20 general model

3. Construction & Materials

1. Ductile iron heavy-duty pump housing, shock and vibration resistant for harsh construction sites

2. Internal rotating group: 9pcs hardened steel pistons & copper alloy slippers, wear-resistant flat valve plate and swash plate

3. All-in-one structure of main Hydraulic piston pump + side pilot gear pump, simplifying piping layout of the hydraulic system

4. Integrated LS valve, constant horsepower regulator and external electronic proportional solenoid valve

5. JIS standard involute spline drive shaft connected to engine flywheel

4. Technical Parameters

Item Specification

Type Variable Hydraulic piston pump

Displacement 17cc/rev

Rated Continuous Pressure 21MPa

Max Peak Pressure 24.5MPa

Rated Speed 2200rpm

Max Intermittent Speed 2500rpm

Built-in Pilot Pump Displacement 6.8cc/rev

Control System LS Load Sensing + Constant Horsepower + Electronic Proportional Control

Hydraulic Fluid ISO VG46 / VG68 anti-wear hydraulic oil

Operating Temp -20℃ ~ +90℃

Net Weight 35KG

OEM Part No. B0600-16023

5. Working Principle

Driven by engine shaft, the cylinder block and pistons rotate to deliver hydraulic oil. Swashplate angle changes to adjust flow output of the hydraulic pump. LS sensor detects real-time load pressure to optimize pump displacement, and the electronic solenoid receives ECU signals for fine flow regulation. The built-in pilot pump feeds control oil to distribution valves to form a full functional hydraulic system. Constant horsepower limiter prevents engine stall under heavy load and protects the Hydraulic piston pump.

6. Features & Application

1. Compact integrated design reduces pipeline leakage points of the hydraulic system

2. High volumetric efficiency flat valve plate design resists internal leakage and hot power drop

3. Dual hydraulic & electronic control delivers smooth and precise operation for fine working and hammer breaking

4. OEM factory calibrated, plug-and-play replacement without commissioning

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

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

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