Rexroth A4vg Hydraulic Pump for Hyundai Excavator A4vg40 , A4vg56, A4vg71, A4vg90, A4vg125, A4vg180, A4vg250

China Rexroth A4vg Hydraulic Pump for Hyundai Excavator A4vg40, A4vg56, A4vg71, A4vg90, A4vg125, A4vg180, A4vg250, Find details about China Hydraulic Pump, A4vg Pump from Rexroth A4vg Hydraulic Pump for Hyundai Excavator A4vg40, A4vg56, A4vg71, A4vg90, A4vg125, A4vg180, A4vg250

Basic Info.

Model NO.

A4VG40, A4VG56, A4VG71, A4VG90, A4VG125, A4VG180,

Straight Shaft Swashplate Piston Type

Pressureoil

Radial Plunger Pump Type

Hydraulic Piston Pump

Model

A4vg56

Delivery Date

7 Days

Application

Construction Machinery

Warranty

1 Year

Trademark

FOCOR

Transport Package

Wooden Case for Export

Specification

hydraulic

Origin

China

HS Code

8413503190

Model NO.

A4VG40, A4VG56, A4VG71, A4VG90, A4VG125, A4VG180,

Straight Shaft Swashplate Piston Type

Pressureoil

Radial Plunger Pump Type

Hydraulic Piston Pump

Model

A4vg56

Delivery Date

7 Days

Application

Construction Machinery

Warranty

1 Year

Trademark

FOCOR

Transport Package

Wooden Case for Export

Specification

hydraulic

Origin

China

HS Code

8413503190

Product Desciption

REXROTH A4VG PUMP

Rexroth A4VG hydraulic pump for DAEWOO excavator

Hydraulic variable displacement axial pump A4VG40, A4VG56, A4VG71, A4VG90, A4VG125, A4VG180, A4VG250

Description

Series 32
Nominal pressure 400 bar
Peak pressure 450
Control device: NV, HD3, HW, DG, DA1, DA2, EP3, EP4, EZ1, EZ2

The A4VG axial piston variable pump in swash plate design for hydrostatic closed circuit transmissions
- Flow is proportional to drive speed and displacement and is infinitely variable
- Output flow increases with the swivel angle of the swash plate from 0 to its maximum value
- Flow direction changes smoothly when the swash plate is moved through the neutral position
- A wide range of highly adaptable control devices is available for different control and regulating functions
- The pump is equipped with two pressure-relief valves on the high pressure ports to protect the hydrostatic transmission (pump and motor) from overload
- The high-pressure relief valves also function as boost valves
- The integrated boost pump acts as a feed and control oil pump
- The maximum boost pressure is limited by a built-in boost pressure relief valve
- The integral pressure cut-off is standard

Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)

Size			A4VG40	A4VG56	A4VG71	A4VG90	A4VG125	A4VG180	A4VG250
Displacement variable pump	Vg max	cm3	40	56	71	90	125	180	250
boost pump (20 bar)	Vg Sp	cm3	8.6	11.6	19.6	19.6	28.3	39.8	52.5
Speed maximum Vg max	conti.	rpm	4000	3600	3300	3050	2850	2500	2400
limited maximum	limited	rpm	4200	3900	3600	3300	3250	2900	2600
intermittent max.	Min.	rpm	5000	4500	4100	3800	3450	3000	2700
intermittent max.	nmin	rpm	500	500	500	500	500	500	500
Flow continuous and Vg max		l/min	160	202	234	275	356	450	600
Power continuous Vg max	400 bar	kW	107	134	156	183	237	300	400
Torque at Vg max	400 bar	Nm	255	356	451	572	795	1144	1590
Torque at Vg max	100 bar	Nm	63.5	89	112.8	143	198.8	286	398
Moment of inertia	JGR	kgm2	0.0038	0.0066	0.0097	0.0149	0.0232	0.0444	0.0983
Angular acceleration	α	rad/s2	30000	24000	21000	18000	14000	11000	6700
Filling capacity	V	L	1.1	1.5	1.3	1.5	2.1	3.1	6.3
Weight approx.	m	kg	31	38	50	60	80	101	156