Rexroth A6ve A6ve250 Series Hydraulic Variable Piston Motor

• Customization: Available
• Certification: GS, CE, ISO9001
• Excitation Mode: Other
• Model NO.: A6VE250
• Casing Protection: Iron Casting
• Number of Poles: Other
• Speed: High Speed
• Type: Plunger Type
• Model: A6ve
• Original: China
• Application: Construction Machinery
• Color: Customized
• Product Name: Hydraulic Motor
• Transport Package: Wooden Case for Export
• Specification: piston
• Trademark: FOCOR
• Origin: China
• HS Code: 84122910
• Production Capacity: 2000 Sets/Month
• Package Size: 40.00cm * 50.00cm * 60.00cm
• Package Gross Weight: 45.000kg

Product Description

 Rexroth A6ve series Hydraulic Piston Motor 

Product Description

\Brueninghaus Hydromatik Rexroth A6VE motor

 
Hydraulic variable motor A6VE28, A6VE55, A6VE80, A6VE107, A6VE160, A6VE250

Description

Open and closed circuits
Series 63
Size 28 to 160 nominal pressure 400 bars and maximum pressure 450 bar.
Size 250 nominal pressure 350 bars and maximum pressure 400 bar.
 
-Variable plug-in motor with axial tapered piston rotary group of bent-axis design, for hydrostatic drives in open and closed circuits
-Far-reaching integration in mechanical gearbox due to a recessed mounting flange located on the center of the case (extremely space-saving construction)
-Easy to install, simply plug into the mechanical gearbox (no configuration specifications to be observed)
-Tested unit ready to install
-For use especially in mobile applications
-The displacement can be infinitely changed from Vg max to Vg min = 0.
-The wide control range enables the variable motor to satisfy the requirement for high speed and high torque.
-The output speed is dependent on the flow of the pump and the displacement of the motor.
-The output torque increases with the pressure differential between the high-pressure and low-pressure side and with increasing displacement.
 

Product Parameters

Technical Data 

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

Size				A6VE28	A6VE55	A6VE80	A6VE107	A6VE160	A6VE250
Nominal pressure		p N	bar	400	400	400	400	400	350
Maximum pressure		pmax	bar	450	450	450	450	450	400
Displacement		Vg max	cm³	28.1	54.8	80	107	160	250
Speed	at V g max	n max	rpm	5550	4450	3900	3550	3100	2700
Speed	at V g<V g max	n max	rpm	8750	7000	6150	5600	4900	3600
Inlet flow	at nmax	q V max	l/min	156	244	312	380	496	675
Torque	Δ p = 350 bar	T	Nm	179	349	509	681	1019	1391
Weight (approx.)		m	kg	16	26	34	47	64	90

Hydraulic fluid
Before starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids) and RE 90223 (HF hydraulic fluids) for detailed information regarding the choice of hydraulic fluids and conditions of use. The A6VE variable displacement plug-in motor is not suitable for use with HFA. If HFB, HFC and HFD or environmentally acceptable hydraulic fluids are being used, the constraints regarding technical data and seals mentioned in RE 90221 and RE 90223 must be observed. If necessary, please contact us to discuss.
Viscosity range  
We recommend that a viscosity (at operating temperature) for optimum efficiency and service life purposes of νopt = optimum viscosity 16 to 36 mm2/s be chosen, taken the circulation temperature (closed circuit) and reservoir temperature (open circuit) into account.
Limits of viscosity range. The following values apply in extreme cases:
νmin = 5 mm2/s
Short-term (t < 3 min) at max. permitted temperature of tmax = +115°C. νmax = 1600mm2/s.
Short-term (t < 3 min) with cold start (p < 30 bar, n ≤ 1000 rpm, tmin = -40°C).
Note that the maximum hydraulic fluid temperature must not be exceeded locally either (e.g. during storage). The temperature in the bearing area is - depending on pressure and speed - up to 12 k higher than the average case drain temperature.
Special measures are necessary at temperatures between -25°C and -40°C. Please contact us.
Shaft seal ring
The service life of the shaft seal ring is affected by the speed of the motor and the case drain pressure. The permitted loading with intermittent case drain pressure depends on the rotational speed (see chart). Short-term (t < 5 s) pressure spikes of up to 6 bar absolute are permitted.
The average permanent case drain pressure must not exceed 3 bar absolute. The pressure in the case must be equal to or greater than the external pressure on the shaft seal ring.
Flushing and Boost Pressure Valve 
The flushing and boost pressure valve is used to remove heat from the closed circuit and to ensure that a minimum charge pressure is present (opening pressure 16 bar, fixed; note when setting primary valve). A side effect is flushing of the case.
Warm pressure fluid is removed from the relevant low pressure side into the motor case. This is then fed into the reservoir, together with the leakage fluid. The pressure fluid drawn out of the closed circuit in this way has to be replaced by cooled oil that is pumped in by the charge pump. In the open circuit, the flushing and boost pressure valve is used solely to flush the case from the return line.
The valve is fitted to the variable displacement motor (or integrated into the servo unit, depending on the type of control and the size).