K4FO Replacement hydraulic pump for A4FO axial piston fixed pump Manufacturer

K4FO Replacement hydraulic pump for A4FO axial piston fixed pump

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All-purpose high pressure pump with through drive
Size 22-500
Nominal pressure up to 350 bar
Maximum pressure up to 400 bar
Open circuit

Features

Axial piston fixed displacement pump with swashplate, designed for hydrostatic drives in open circuits
For mobile and stationary applications
Flow is proportional to drive speed and displacement
High power/weight ratio
High total efficiency
Optimized size for particular installation
Excellent suction characteristics
Low noise level
Long service life
Through drive for mounting additional pumps

Technical Parameters

Size				22	28	71	125	180	250/H¹⁾	500/H²⁾
Displacement		V_g	cm³	22	28	71	125	180	250	500
Displacement,geometric,per revolution		V_g	cm³	22	28	71	125	180	250	500
Max. rotating speed²⁾		n_nom	rpm	3600	3000	2200	1800	1800	1500/ 1900	1320/ 1500
Max. rotating speed³⁾		n_max	rpm	4500	3750	2700	2200	2100	1800/ 2100	1600/ 1800
Flow	At V_g and n_nom	q_V	l/min	79	84	156	225	324	375/475	660/750
Power	At V_g,n_nom,and at Δp = 400 bar	P	kW	53	56	91⁴⁾	131⁴⁾	189⁴⁾	219/277⁴⁾	385/438⁴⁾
Torque	At V_g and Δp = 400 bar	T	Nm	140	178	396⁴⁾	696⁴⁾	1003⁴⁾	1393⁴⁾	2785⁴⁾
Rotary stiffness of through shaft	S	c	kNm/rad	29.9	29.9	=	-	-	-	-
	P	c	kNm/rad	-	-	146	260	328	527	1145
	Z	c	kNm/rad	-	-	146	263	332	543	1136
Moment of inertia for rotary group		J_GR	kgm²	0.0017	0.0017	0.0121	0.0300	0.055	0.0959	0.3325
Max. angular acceleration		α	rad/s²	38000	38000	20000	13000	10000	8000	4800
Case volume		V	I	0.3	0.3	2.0	3.0	4.0	7.0	11.0
Weight (approx.)		m	kg	13.5	13.5	34	61	76	120	220

Description

K4FO fixed displacement piston pumps for hydrostatic drives in open circuits, as a replacement for A4FO, are axial piston rotary group pump with swashplate design.

Applications

Forging & Pressing
Metallurgical