K4VSG (Replacement for A4VSG Series 10&22) Replacement hydraulic pump for A4VSG series 10&22 axial piston variable pump

Robust high pressure pump for industrial applications size: 40-1000 Nominal pressure 350bar Peak pressure 400bar Closed circuit Features Low-noise Long service life Drive shaft capable of absorbing axial and radial loads High power/weight ratio Modular design Short control times Through drive for mounting additional pumps Swivel angle indicator Optional mounting location Operation on HF fluids possible with reduced operating parameters Technical Parameters

Size				40	71	125	180	250	355	500	750	1000
Displacement		Vg max	cm³	40	71	125	180	250	355	500	750	1000
Max. speed		nmax	rpm	3700	3200	2600	2400	2200	2000	1800	1600	1600
Max. speed	at nmax	Qmax	L/min	148	227	325	432	550	710	900	1200	1600
	at nE=1500rpm		L/min	60	107	186	270	375	533	750	1125	1500
Max. power (Δp = 350 bar)	at no max	Po max	kW	86	132	190	252	321	414	525	700	933
	at nE=1500rpm		kW	35	62	109	158	219	311	438	656	875
Max. torque (Δp = 100 bar)	at Vg max	Tmax	Nm	223	395	696	1002	1391	1976	2783	4174	5565
Torque (Δp = 100 bar)	at Vg max	T	Nm	64	113	199	286	398	564	795	1193	1590
Torque (Δp = 100 bar)		J	kgm2	0,0049	0,0121	0,03	0,055	0,0959	0,19	0,3325	0,66	1,20
Filling volume			L	2	2,5	5	4	10	8	14	19	27
Weight (Approx.,pump with EO1 control and valve block)		m	kg	47	60	100	114	214	237	350	500	630
Max. axial force		±Fax max	N	600	800	1000	1400	1800	2000	2000	2200	2200
Max. radial force		Fq max	N	1000	1200	1600	2000	2000	2200	2500	3000	3500

Description

The K4VSG is an axial piston variable pump with axial piston rotary group in swashplate design for hydrostatic drives in closed circuits. The flow of the variable displacement pump is proportional to the drive speed and displacement, which can be steplessly changed by adjusting the cradle. The pistons are axially arranged to the drive shaft in its axial piston unit with swashplate design. Hydraulic fluid flows from the hydraulic pump to the motor and directly back to the pump in a closed circuit. The series is mainly used in tunnel boring machine, mining machines, ceramic press, metallurgy and other industries.

Applications
Tunnel boring machine

Mining machine

Ceramic press

Metallurgy