Bohang Advantage: The complexity of the A4VG lies in its integrated valves. Bohang ensures every integrated boost pump and high-pressure relief valve is calibrated to OEM specs. We are recognized as China’s premier alternative for closed-circuit travel drives due to our rigorous 100% performance verification.
1. Integrated Functions (A4VG): Built-in boost pump and pressure relief valves for a compact system.
2. Long Fatigue Life: Swashplate bearings designed for continuous high-pressure cycles.
3. Built for the toughest jobs. The A4VG (Closed Circuit) is the powerhouse behind heavy-duty crawler drives and transit mixers.
FAQ
Q: What integrated valves are included in your A4VG replacement?
A: Our A4VG is a "plug-and-play" closed-loop solution. It includes the internal Boost Pump (Charge Pump), high-pressure relief valves with integrated boost functions, and a boost pressure relief valve. This ensures your travel drive remains pressurized and cooled without extra external manifolding.
Q: Can this pump handle the heavy vibrations of a concrete mixer or crawler drive?
A: Yes. The A4VG uses a heavy-duty swashplate design with reinforced cradles. It is specifically built for the high-vibration, high-dust environments of construction machinery, offering a nominal pressure of 400 bar and peak of 450 bar.
Q: Does the pump support electric proportional control (EP)?
A: Yes. We offer the full range of controls: HW (Manual), HD (Hydraulic), and EP/ED (Electric). Our solenoids are compatible with standard 12V/24V DC systems used in most mobile equipment.
Q: Is the A4VG suitable for closed-loop travel drives on crawler excavators?
A: Yes. Our A4VG series includes the integrated boost pump, high-pressure relief valves, and boost pressure valves, making it a complete solution for hydrostatic travel drives.
Our Strategic Advantages
1. Decades of Specialized Expertise (Since 2008)
The Message: We aren't just a manufacturer; we are hydraulic pioneers. With nearly 20 years of dedicated focus on the Rexroth technical system, Foshan Bohang understands every internal tolerance and metallurgical requirement of axial piston units.
2. Premium Imported Raw Materials
The Message: Quality begins with the source. To match Rexroth’s durability, we exclusively use high-grade imported raw materials. From specialized alloy steels for cylinders and pistons to premium NBR/FKM (Viton) seal kits, our material selection ensures our products thrive in extreme high-pressure and high-temperature environments.
3. Standardized "Rexroth-Level" Manufacturing Process
The Message: We don't take shortcuts. Our production lines follow the exact standard operating procedures (SOP) and processing times as Rexroth. Each component undergoes precise heat treatment, nitrogenation, and grinding to ensure that our replacement units are 100% interchangeable and functionally identical to the original.
4. 100% Engineer-Verified Performance Testing
The Message: "Zero-Defect" is our goal. Before leaving the factory, every single unit is personally tested by our senior engineers on high-precision digital test benches. We verify volumetric efficiency, mechanical noise, and leakage rates under full load to guarantee "Plug-and-Play" reliability for your machinery.
5. The Best "Drop-in" Alternative in China
The Message: Foshan Bohang is committed to being the top-tier Chinese alternative to Rexroth. We bridge the gap between high-priced originals and low-quality aftermarket parts. Our mission is to provide global customers with the most cost-effective, high-performance axial piston pumps and motors that match the original installation dimensions perfectly.
