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Main pump

Main pump

The K3V/K5V/K7V Series is a swash plate variable displacement axial piston pump for construction machinery that features high efficiency, reliability, and low noise.

Features Benefits
High power density High power density increased by achieving high pressure, light weight and
compactness by adopting a semi-cylindrical swash plate type
High efficiency and high self-suction ability By adopting a spherical valve plate and improving the hydraulic balance,
high efficiency is realized even in the low pressure/low inclination area.
Long life Long life is achieved by adopting a high load capacity bearing and a piston/return
mechanism that compensates for shoe wear
Low noise Realization of low noise by improving the rigidity of the casing and the design of the valve plate
Various control methods Various control methods using mechanical, hydraulic, and electricity are possible
Specification
Series K3V Series K5V Series K7V Series
SIZE 63 112 140 180 280 80 140 160 200 212 63 125 140* 160* 180* 240* 280*
Max. displacement [cm3] 63 112 140 180 280 80 140 160 200 214 65 130 140 160 180 242 280
Pressure[MPa] rated. 34.3 34.3 35.0
peak. 39.2 39.2 40.0
Speed
[min-1]		 max. for self-priming 2,650 2,360 2,150 1,950 1,600 2,460 2,160 2,000 1,900 2,000 2,650 2,360 2,100 2,100 2,000 1,820 1,800
max. 3,250 2,700 2,500 2,300 2,000 3,000 2,500 2,350 2,200 2,000 2,950 2,700 2,450 2,450 2,300 2,100 2,100
Torque[N·m] 343 588 1,120 1,950 529 843 1,120 1,500 415 902 1,500 2,000 2,500
Mass[kg] 81 125 160 270 81 125 160 206 84 140 187 - 290
※ *KHI product