A7v58 a7v78 a7v107 A7V117 A7V160 Rexroth Axial Plunger Hydraulic Pump

A7v58  a7v78 a7v107 Rexroth Axial Plunger Hydraulic Pump

• All-purpose high pressure pump
• Size 5 … 1000
• Nominal pressure up to 400 bar
• Maximum pressure up 450 bar
• Open circuit
• Technical details 

  Size				12	16	23	28	32	45	56	63	80	107	125
  Displacement		Vg	cm³	12	16	22.9	28.1	32	45.6	56.1	63	80.4	106.7	125
  geometric, per revolution
  Nominal pressure		pnom	bar	400	400	400	400	400	400	400	400	400	400	400
  Maximum pressure		pmax	bar	450	450	450	450	450	450	450	450	450	450	450
  Maximum speed		nnom 1)	rpm	3150	3150	2500	2500	2500	2240	2000	2000	1800	1600	1600
  		nmax 2)	rpm	6000	6000	4750	4750	4750	4250	3750	3750	3350	3000	3000
  Flow	at nnom	qV	l/min	38	50	57	70	80	102	112	126	145	171	200
  Power	at nnomand pnom	P	kW	25	34	38	47	53	68	75	84	96	114	133
  Torque 3)	at pnom	M	Nm	76	102	146	179	204	290	357	401	512	679	796
  Rotary stiffness		c	kNm/rad	1.25	1.59	2.56	2.93	3.12	4.18	5.94	6.25	8.73	11.2	11.9
  Moment of inertia for rotary group		JTW	kg·m²	0.0004	0.0004	0.0012	0.0012	0.0012	0.0024	0.0042	0.0042	0.0072	0.0116	0.0116
  Maximum angular acceleration			rad/s²	5000	5000	6500	6500	6500	14600	7500	7500	6000	4500	4500
  Case volume		V	l	0.17	0.17	0.2	0.2	0.2	0.33	0.45	0.45	0.55	0.8	0.8
  Weight (approx.)		m	kg	6	6	9.5	9.5	9.5

Features:

Robust pump with long service life

Very high total efficiency

High power density

Large variety of available nominal sizes allows exact adjustment to the application

Optional with long-life bearings for the nominal sizes 250 to 1000

Bent-axis design

– Fixed pump with axial tapered piston rotary group of bent-axis design, for hydrostatic drives in an open circuit – For use in mobile and stationary applications – The flow is proportional to the drive speed and displacement – The drive shaft bearings are designed for the bearing service life requirements usually encountered in these areas

– High power density – Small dimensions

– High total efficiency – Economical design – One-piece tapered piston with piston rings for sealing