Variable Displacement Piston pump A4VTG for Concret Mixing Truck, China Variable Displacement Piston pump A4VTG for Concret Mixing Truck Manufacturers, Suppliers, Factory - Wenzhou Prance Hydraulic Equipment Co., Ltd

Feature:

1).Integrated auxliay pump for boost and piot oilsupply.

2).Flow direcion changes smoothy when the swashplate is moved through the neutral postion

3).High-pressure relief valves with integated boost function.

4).With adjustable pressure cut-off as standard

5).Boost-pressure relief valve

6).Through drive for mounting of further pumps up to same nominal size

7).Large variety of controls

8).Swashplate design

variable displacement piston pump a4vtg for concret mixing truck-1

Size			NG		71	90
Displacement	variable pump		V_gmax	in³	4.33	5.49
	variable pump		V_gmax	cm³	71	90
	boost pump(at p=290 psi(20 bar))		V_{g sp}	in³	1.25	1.65
	boost pump(at p=290 psi(20 bar))		V_{g sp}	cm³	20.5	27
Speed	at V_{g max}		N_nom	rpm	3300	3050
Speed	minimum		nmin	rpm	500	500
Flow	at nn_om and V_{g max}		qv max	gpm	62	72
Flow	at nn_om and V_{g max}		qv max	I/min	234	275
Power¹)	at n_nom,V_{g max} and	△p=5800 psi	Pmax	hp	210	244
Power¹)	at n_nom,V_{g max} and	△p=400 bar	Pmax	kW	156	183
Torque¹)	at V_{g max} and	△p=5800 psi	Tmax	lb-ft	333	422
		△p=400 bar	Tmax	Nm	452	573
		△p=1450 psi	T	lb-ft	83	106
		△p=100 bar	T	Nm	113	143
Rotary stiffness	drive shaft M9		C	lb-ft/rad
Rotary stiffness	drive shaft M9		C	Nm/rad		On request
Moment of inertia for rotary group			J_GR	Ib-ft²	0.2302	0.3536
Moment of inertia for rotary group			J_GR	kgm²	0.0097	0.0149
Maximum angular acceleration²)			α	rad/s²	21000	18000
Filling capacity			V	gal	0.34	0.32
Filling capacity			V	L	1.3	1.2
Mass approx. (without through drive)			m	lbs	112	117
Mass approx. (without through drive)			m	kg	51	53

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