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Nachi PVD-1B Pump | PVD-1B-32P, PVD-1B-28P | Main Pump for Hitachi EX30 | PVD-1B-31BP
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Product Description
Nachi PVD-1B Series Triple Hydraulic Pumps for Hitachi EX30 Excavators
Product Overview: The Nachi PVD-1B Series is the technological power core for 3-ton class mini excavator hydraulic systems. Featuring a classic “Triple Pump” architecture, it integrates two high-pressure variable displacement axial piston pumps and one auxiliary gear pump within a single compact housing. Featured models like the PVD-1B-32P, PVD-1B-28P, and PVD-1B-31BP-9G5-4737 are the premier OEM-matching choice for Hitachi EX30 excavators. Their superior constant power control ensures smooth torque distribution during compound movements (e.g., simultaneous traveling and swinging) while effectively preventing engine stalling.
Key Technical Advantages:
Triple-Integrated Architecture: Delivers three independent power sources within a minimal footprint, drastically simplifying hydraulic plumbing and reducing potential failure points in compact machinery.
Precise Constant Power Modulation: Automatically adjusts displacement based on load pressure, keeping the engine within its optimal torque range to maximize fuel efficiency and performance.
Hitachi EX30 Seamless Fit: Strictly adheres to original mounting and shaft standards, ensuring a 100% “drop-in” replacement for Hitachi EX30, EX30-2, and EX35 models.
Superior Operational Stability: Sensitive pressure-limiting and flow-sharing capabilities provide operators with fluid control and consistent force during precision grading or confined-space tasks.
Quiet & Rugged Performance: Optimized swashplate bearings and precision piston groups suppress hydraulic pulsations, ensuring a quieter operational environment and an extended service life.
Detailed Models & Parameters:
Core Series: Nachi PVD-1B Series (Triple Pump).
Model Keywords: PVD-1B-28P, PVD-1B-32P, PVD-1B-31BP, PVD-1B-31BP-9G5-4737.
Compatible Equipment: Hitachi EX30, EX30-2, EX35, and other 3-ton mini excavators.
Displacement Matrix: Main circuits 28cc / 32cc × 2 + integrated auxiliary gear pump output.
Pressure Ratings: Rated at 21-24.5 MPa continuous; Peak capability up to 30 MPa (4350 PSI).
Target Applications: Main hydraulic pumps for mini-excavators, skid steer loaders, and compact drilling rigs.
Company Profile
We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
Our Advantages
Fast & Reliable Delivery
Extensive Partnerships
We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses
Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
Competitive Pricing
Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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