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Cat® 250-2564 2PL Hydraulic Main Pump Assembly for 330C Series Excavators

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  2. Cat® 250-2564 2PL Hydraulic Main Pump Assembly for 330C Series Excavators
Cat® 250-2564 2PL Hydraulic Main Pump Assembly for 330C Series Excavators

Restore your excavator's power with the Cat® 250-2564 2PL Hydraulic Pump Assembly. Specifically designed for 330C, 330C L, and 330C FM models, this ductile iron pump delivers high-pressure reliability and peak productivity. Engineered for durability in heavy-duty B2B construction and forestry environments. Global export available.

Cat 250‑2564 Hydraulic Pump Assembly — 2PL Main Hydraulic Power Unit for CAT 330C Excavator

Cat® 250‑2564 Hydraulic Pump Assembly — 2PL Main Hydraulic Power Unit for CAT 330C Excavator

The Cat® 250‑2564 2PL Main Hydraulic Pump Assembly is the core hydraulic power source engineered for Caterpillar 330C‑series 30‑ton‑class heavy excavators. It delivers exceptionally stable, high‑pressure hydraulic fluid flow to drive demanding digging, heavy lifting, high-torque traveling, and coordinated upper-structure swing movements. The main pump housing is cast from high‑strength ductile spheroidal graphite iron, providing superior pressure retention and fatigue resistance to withstand severe pressure spikes in heavy-load construction, civil engineering, and rugged forestry environments.

1. Core Advantages

  • High‑Strength Ductile‑Iron Housing: Engineered with premium spheroidal graphite iron, which features significantly higher tensile strength and anti‑fatigue properties than traditional gray iron, easily resisting case distortion and hydraulic‑shock damage under high peak workloads.

  • Optimized Power‑Matching Curves: Dynamically calibrated to align precisely with the torque and power curves of the matching CAT engine, balancing maximized volumetric output with fuel‑saving performance to effectively decrease hourly fleet operating overhead.

  • Micron‑Level Precision Rotating Group: Core internal components, including the pistons/plungers, cylinder block, and valve plate, undergo strict precision finishing to minimize internal slippage and oil bypass, ensuring highly stable pressure tracking under maximum load conditions.

  • Heavy‑Duty Anti‑Impact Internal Architecture: Purpose-built to damp continuous pressure surges and system oscillations encountered during severe rock fragmentation, deep trenching, and rapid bulk material handling.

2. Technical Specifications

Technical ParameterImperial Size SpecificationMetric Size Specification
Primary Part Number250‑2564250‑2564 (2502564)
Pump Model Designation2PL Main Hydraulic Pump Assembly
Housing Material GradeDuctile Spheroidal Graphite Iron (Cast Iron)
Overall Enclosure Dimensions25.5 in × 32.0 in647.7 mm × 812.8 mm
Hydraulic System ArchitectureOpen‑Center & Load‑Sensing Systems Interfacing
Core Mechanical FunctionHigh‑Pressure Hydraulic Power Output for Main Operational Control Circuits

3. Machine Compatibility & Fleet Application

This original-specification main hydraulic power unit is precision-engineered for the complete configuration lineup of the CAT 330C heavy infrastructure series:

  • 330C Standard Series Crawler Excavators: 330C, 330C L, 330C LN.

  • Special‑Purpose Field Configurations: 330C FM Log Loaders / Forestry Excavators and 330C MH Industrial Material Handlers.

  • Auxiliary Power Infrastructures: 330C Stationary & Mobile Hydraulic Power Units (MHPU).

4. Technical Note & Hydraulic Commissioning Protocol

Critical Strategy for Fleet Hydraulic Technicians:
• System Flush Mandatory: When introducing a replacement 250‑2564 primary pump assembly after a previous component failure, always execute a comprehensive hydraulic system flush. Residual metallic shavings or micro-particulates remaining trapped inside the main control valves or cylinders will instantly scar the new pump's precision swashplate and plungers, causing premature degradation.
• Case Initial Priming: Prior to starting the engine for the first time post-installation, fill the pump housing completely with clean, filtered hydraulic fluid via the top case-drain port. Running a high-displacement plunger pump dry for even a few seconds during initial startup will cause severe galling and catastrophic metal-on-metal failure.

5. Commercial Reference & Global Supply Channels

  • Supplier Identification: Xuzhou Sinoswift Import & Export Co., Ltd.

  • Contact/Mobile Support: +86 13701956981

  • Email Address: [email protected]

  • Commercial Supply Frame: Minimum Order Quantity (MOQ): 1 Unit | Factory Warranty Window: 6‑12 Months

  • Logistics Execution: Heavy-Duty Anti-Shock Wooden Crate Export Packing. Full Support for Ocean Freight Container Loading (FCL/LCL), Air Cargo, and Worldwide Specialized Heavy Express Delivery

All original equipment manufacturer names, registered trademarks, logo symbols, and equipment model numbers are utilized strictly for field compatibility cross-mapping and unit installation alignment verification. Restore your machine's cycle speeds, flow parameters, and system pressure integrity. Contact our technical service desk today to schedule product dispatch or to review commercial bulk pricing structures!

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