REXROTH Rexroth plunger pump A10VSO71DRG is newly shipped

REXROTH Rexroth plunger pump A10VSO71DRG is newly shipped

REXROTH Rexroth plunger pump A10VSO71DRG/31R-PKC92K03 with high quality and good price

Shanghai Pumin Industrial Automation Equipment Co., Ltd. specializes in the sales of imported spare parts from Europe and America. The company has its own offices in Germany and the United States for direct procurement, with first-hand sources and competitive prices in the market.

Price advantage: We directly obtain quotes from factories, avoiding many intermediate links. Many factories offer us fixed discounts to ensure that we provide customers with favorable prices.

Wide channels: In addition to factories, we have direct business relationships with many distributors in Europe, which allows us to purchase products that cannot be quoted due to protecting agents.

The core working principle of REXROTH Rexroth plunger pump is to drive multiple plungers to reciprocate in the cylinder body through rotational motion, periodically changing the volume of the closed working chamber to achieve the conversion of mechanical energy to hydraulic energy. Its core structure includes key parts such as drive shaft, inclined plate (or inclined shaft), cylinder body, plunger assembly, distribution plate, and variable control mechanism. When the prime mover (such as an electric motor or engine) drives the drive shaft of the pump to rotate, the cylinder block fixed coaxially with the drive shaft rotates synchronously. Multiple axial plug holes are evenly distributed in the circumferential direction of the cylinder block, and each hole is precisely equipped with a plunger (usually a sliding shoe or ball head structure). The tail of the plunger is in contact with a stationary or tiltable inclined plate through a mechanical structure, such as a sliding shoe. The inclined plate has a fixed or adjustable inclination angle relative to the cylinder axis (which can be dynamically adjusted in variable displacement pumps), and this inclination angle design is crucial for volume changes. When the cylinder body rotates, due to the inclined surface of the inclined plate, the plunger is forced to perform reciprocating linear motion in the plunger hole: when the plunger moves from the highest point of the inclined plate to the point, it extends outward under the action of centrifugal force or auxiliary spring, and the volume of the sealed chamber behind the plunger gradually increases, forming a local vacuum. At this time, low-pressure oil is sucked from the oil tank through the suction window on the distribution plate; When the plunger moves from the inclined inventory to the highest point, the inclined plate forces the plunger to retract into the cylinder, causing a sharp decrease in the volume of the sealed chamber. The oil is strongly compressed, and the pressure rapidly increases. The high-pressure oil is squeezed out through the pressure window on the distribution plate and delivered to the hydraulic system. The distribution plate is fixed on the pump body, and its suction area and pressure oil area are strictly isolated by a transition sealing strip to ensure that the high and low pressure chambers are not connected to each other. Every time the cylinder rotates, each plunger completes a complete oil suction pressure cycle, and the continuous relay work of multiple plungers forms a smooth and continuous high-pressure oil flow. For variable displacement pumps (such as Rexroth's A10VSO series), the core lies in the dynamic adjustment mechanism of the tilt angle of the inclined plate: the variable piston (or servo piston) receives external control signals (such as pressure, flow, or electric proportional signals), drives the inclined plate to rotate around its pivot, and changes the size of the tilt angle. When the inclination angle increases, the plunger stroke becomes longer, the single oil discharge volume increases, and the output flow rate of the pump increases; When the inclination angle is reduced, the travel is shortened and the output flow rate is reduced; When the inclination angle is zero, theoretically the output flow rate is zero (there is actually a small amount of internal leakage). This variable control achieves precise matching between the output flow rate of the pump and the system requirements, significantly improving energy efficiency. In addition, the Rexroth plunger pump adopts a through shaft drive design (such as the A4VG series), where the drive shaft runs through the entire pump body, allowing multiple pumps or additional gear pumps to be connected in series on the same axis to form a compact multi link pump set, meeting the multi way oil supply needs of complex systems. Its friction pairs (such as plungers/cylinder holes, sliding shoes/inclined plates, cylinder bodies/port plates) are made of high hardness materials with precision micrometer level clearances, supplemented by pressure oil film lubrication (such as static pressure balance design), which maintains extremely low wear and leakage under high pressure (up to 450 bar or above). Rexroth also significantly suppresses flow pulsation and pressure shock by optimizing the pre compression and pressure relief process of the plunger chamber, designing shock absorber groove structure, and adopting noise reducing inclined plate contour technology, ensuring smooth and low-noise output of the oil. This volumetric principle, based on the reciprocating motion of the plunger driven by the inclined plate (or inclined shaft), combined with precise variable control and advanced frictional design, makes the Rexroth plunger pump an efficient, high-pressure, intelligent, and long-lasting hydraulic power source, widely used in industrial equipment, engineering machinery, ships, aerospace and other fields.

REXROTH Rexroth plunger pump A10VSO71DRG is newly shipped

The core feature of the REXROTH Rexroth plunger pump is its integration of high-pressure capability, efficient energy conversion, intelligent variable control, and extraordinary engineering durability, making it a hydraulic power system. Its design philosophy is based on ultimate pressure bearing, achieving working pressures of up to 450 bar or even higher through a through axis structure (such as the A10VSO series) or a curved axis design (such as the A7VO series). At the same time, it uses precision micrometer level distribution pairs (such as hard to hard matching of spherical distribution plates and cylinder bodies) and static pressure balance technology to maintain extremely low internal leakage (with a volumetric efficiency of over 95%) under ultra-high pressure, significantly reducing energy loss and maintaining controllable system temperature rise. The friction pair of the plunger component (sliding shoe and inclined plate, plunger and cylinder hole) uses an adaptive fluid lubrication mechanism - high-pressure oil infiltrates the contact surface through the micro holes inside the plunger to form a dynamic oil film, supplemented by wear-resistant treatment of surface coatings (such as copper alloy or ceramic matrix composite materials), which can effectively suppress wear even under boundary lubrication conditions, endowing it with ultra long service life (up to tens of thousands of hours) and tough resistance to impact loads.

At the level of intelligence, the modular variable control system of Rexroth plunger pumps is innovative. The inclination angle of its inclined plate can be adjusted in real-time through diversified control methods: mechanical pressure cut-off (DR control) automatically reduces the displacement when the set pressure is reached to achieve unloading; Hydraulic load sensing (LRDS control) dynamically matches the required flow rate of the actuator to eliminate throttling losses; Electric proportional control (such as HD type) receives 0-10V signals for stepless flow adjustment, deeply integrated with electronic controllers; Constant power control (constant voltage/constant current) ensures that the power of the prime mover is not exceeded. These control mechanisms are converted into inclined plate angle changes through precise variable piston servo mechanisms, with response times as short as milliseconds and displacement adjustment accuracy of ± 1%, achieving precise matching between flow and system requirements and significantly improving energy efficiency (with typical applications saving over 30% energy). Of particular note is the electronic pump technology (such as A10VSO 100 DFE), which has built-in pressure sensors and digital controllers. It communicates with the upper computer through the CAN bus and can be programmed to achieve pressure flow composite curves, multi-stage pressure switching, and even pump group collaboration, building an intelligent hydraulic core.

In terms of structural design, compact through shaft drives (such as the A4VG series) allow multiple pumps or additional gear pumps to be connected in series on a single drive shaft, forming a space efficient multi pump group that meets the independent oil supply needs of complex systems with multiple circuits. Its low-noise genes are derived from multiple technologies: optimized plunger chamber pre compression structure to avoid oil cavitation; The shock-absorbing groove design ensures smooth pressure impact; The special algorithm for inclined plate profile reduces flow pulsation (theoretical pulsation rate can be controlled within 1%), making the pump run smoothly under all operating conditions (noise level as low as 65dB (A)). Meanwhile, environmental adaptability is an extension of its industrial grade reliability - wide viscosity oil compatibility (ISO VG 15 to VG 1000), high temperature tolerance (continuous operation at oil temperatures of -40 ° C to+110 ° C), and heavy load pollution tolerance (NAS 1638 Class 9) make it adept in harsh scenarios such as metallurgical rolling mills, ship deck machinery, or mining equipment. In addition, the maintenance friendliness is deeply embedded in the design: modular components support quick replacement; Built in oil replenishment pump simplifies closed circuit construction; Real time monitoring of pump status through fault diagnosis interface. These characteristics collectively shape the irreplaceability of Rexroth piston pumps in fields such as aerospace, injection molding, steel continuous casting, and new energy equipment, becoming synonymous with high-precision, high response, and high reliability hydraulic power.

Rexroth, Hydac, Parker, WEBTEC, Atos,

EBRO, METRIX, Megger, ODE, HEIDENHAIN, Heidenhain, USA

Samson, Aventics, Bently, Ifm,

Fairchild, Asco solenoid valve, P+F, MOOG servo valve,

Burkert, Balluff, Pilz, Baumer,

Hengstler, Norgren, Mac solenoid valve from the United States, EPRO from Germany,

Danfoss, German HBM sensors, Lenze Lenz, Tiefenbach, and others

The hot selling models are as follows:

Vibration transmitter \ \ TM635-A01-B00-C00-D00-E02-F00-G00

Vibration transmitter \ \ TM635-A04-B00-C00-D00-E02-F00-G00

System Controller \ \ TM691-B00-G00

PMP51B-AABACBH6AA3SCA1VNJA1

PMP51B-BFBACBH6AA3FCA1VNJA1

HYDAC HODEK EVS 3114-A-0020-000

HYDAC HODEK EVS 3114-A-0060-000

HYDAC HODEK EVS 3114-A-0300-000

METRIX MX2034-41-08-09-05-02-071-00

METRIX MX8030-04-000-070-10-05

METRIX MX8031-080-01-05

METRIX ST5484E-151-432-00

Vibration Sensor \ \ 330103-00-15-10-02-00

Displacement Sensor \ \ 330106-05-03-10-02-00

Vibration Sensor \ \ 21000-16-10-15-102-03-02

Displacement Sensor \ \ 330103-00-06-05-02-00

Displacement Sensor \ \ 330103-00-10-02-00

阀 SCG551A018MS DC24V

阀8320 G174 DC24V

Vibration Monitor 2300/20-00

ST5484E-151-0832-00

2866705 QUINT-PS/3AC/24DC/10

101137434 AZ15/16-B6

METRIX MX2034-41-08-09-05-02-071-00

METRIX MX8030-04-000-070-10-05

METRIX MX8031-080-01-05

METRIX ST5484E-151-432-00

HYDAC HODEK EVS 3114-A-0300-000

MX2030-03-000-090-05-05

MX2030-03-000-130-05-05

MX2030-04-000-130-05-05

MX2030-06-005-030-05-05

Temperature sensor S14455PD3S200

BURKERT 297782

BURKERT 625455

BURKERT Baode 126243

BURKERT Baode 010984

BURKERT Baode 010986

DR20-4-5X/100Y

HYDAC HODEK EVS3108-H-0060-000

HYDAC HODEK EVS3108-H-0300-000

HYDAC HODEK EVS3108-H-0600-000

HYDAC HODEK EVS3114-A-0600-000

HYDAC HODEK EVS3116-A-0020-000

REXROTH speed control valve Z2FS16-3X/S2

REXROTH hydraulic control one-way valve Z2S22-1-5X/V

REXROTH speed control valve Z2FS22-3X/S2

BURKERT 361883

HYDACEVS3106-A-0060-000

HYDACEVS3106-A-0300-000

5PBB1H-AAEAMBJA0DED5K0AA1

5PBB1F-AAEAMBJA0AED5K0AA1

5PBB50-AAEAMBJA0AED5K0AA1

Reading head AE LS486C.310727-51N

German Schenk EG20612/VDB20600

Electromagnetic valve 5727405302

Pneumatic valve VFA5120-03

Pneumatic valve VFA3190-X28

CUS52D-AA1AA3

COS61D-AAA1A3

CM442-AAM1A2F010A+AK

FMU30-AAHEABGHF

FMU90-R11CA111AA3A

AB1769-OF4VI

AB1769-OF4CI

T6C012(ROOB1)

T6C025(ROOB)

T6DC042010 (R03B)

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