CAT307C Main Hydraulic Pump for Caterpillar 7-ton small excavator spare parts

Short Description:

The CAT320D main hydraulic pump is an original dual‑variable piston pump specially matched for Caterpillar 20‑ton medium excavator hydraulic system. Precisely calibrated to match the power output and torque characteristics of CAT320D engine, it serves as the core power source of the whole hydraulic system. It converts mechanical rotational power into high‑pressure hydraulic oil, supplying stable flow for boom, arm, bucket, travel and swing mechanisms. Optimized for earthmoving, foundation excavation, road construction and mixed heavy‑load working conditions, it features stable power output, quick response, low noise and strong anti‑pollution performance, guaranteeing high‑efficiency and reliable operation for CAT320D excavator in various engineering scenarios.

Product Detail

Product Tags

description

The CAT307C main hydraulic pump adopts compact integrated variable piston structure, equipped with high-precision swash plate assembly, intelligent pressure regulating valve, flow control valve and servo control components. Adopting original factory power matching calibration logic, it can dynamically adjust pump displacement in real time according to on-site load changes, realizing precise pump-engine power synchronization and significantly improving energy utilization efficiency. The pump shell is made of high-strength lightweight cast aluminum alloy with compact structure and strong shock resistance. Internal core components such as plungers, valve plates and slippers are processed by ultra-precision grinding and surface hardening treatment, with low friction coefficient and excellent wear resistance. All finished pumps pass strict factory hydraulic pressure test, flow detection and full-load durability simulation test. Compared with ordinary non-calibrated universal replacement pumps, the genuine CAT307C hydraulic pump has higher pump-valve matching accuracy, more sensitive dynamic response and lower idle power consumption, effectively solving common faults such as weak excavation power, sluggish action, system high temperature and jitter caused by mismatched hydraulic parameters.

product parameters

Brand: OEM Genuine
Model: CAT307C
Product Name: Main Hydraulic Pump Assembly
Applicable Equipment: Caterpillar 7-ton small excavator (CAT307C)
Structural Type: Single variable piston pump, intelligent power regulation hydraulic control
Core Structure: Integral pump housing, precision swash plate assembly, plunger slipper group, hardened valve plate, pressure regulator, flow control valve, servo piston, oil inlet and outlet ports
Main Material: High-strength cast aluminum housing, wear-resistant alloy plunger pair, anti-fatigue hardened valve plate, high-temperature aging-resistant sealing parts, precision hydraulic control elements
Core Function: Convert mechanical energy into hydraulic energy, real-time variable displacement adjustment, adaptive power matching, provide stable power for all hydraulic execution systems
Working Characteristics: Sensitive dynamic response, stable pressure retention, low internal leakage, low noise operation, low thermal attenuation, excellent anti-pollution performance
Working Condition Adaptation: Suitable for narrow site construction, municipal landscaping, house demolition, earthwork leveling, frequent start-stop and light-medium load cyclic operation
Matching Parts: Multi-way control valve, hydraulic cylinder, travel & swing motor, pilot valve, high-pressure hydraulic pipeline, hydraulic oil tank and filter elements

advantages

• Adopts exclusive original calibration for CAT307C, achieving perfect engine-pump-valve coordination and avoiding power mismatch and engine stall.
• Intelligent variable displacement technology adapts flow output according to load changes, reducing invalid idle energy consumption and improving overall fuel efficiency.
• Ultra-precision hardened friction pairs minimize internal wear and internal leakage, maintaining stable pressure output for long-term cyclic operation.
• Compact optimized flow channel design reduces hydraulic resistance and heat accumulation, effectively solving system overheating problems in frequent short-distance operations.
• Sensitive servo pressure regulation components ensure quick response of compound actions with smooth operation and no jitter.
• Upgraded high-pressure sealing system resists hydraulic oil corrosion and aging, effectively preventing pump body oil leakage and pressure relief failure.
• Standard original installation size supports non-destructive direct replacement, no secondary modification and debugging, greatly reducing maintenance downtime.

maintenance & replacement tips

• Regularly inspect the pump housing, oil port connections and high-pressure pipelines to eliminate oil leakage risks caused by long-term vibration and frequent start-stop operation.
• Replace hydraulic oil and filter elements strictly in accordance with the maintenance cycle to prevent particle impurities from scratching precision plunger and valve plate friction pairs.
• Use qualified clean hydraulic oil to avoid oil deterioration and contamination leading to valve jamming, abnormal wear and pump failure.
• Regularly check the system working pressure and pump output flow to ensure the hydraulic pump operates within the standard working range.
• Avoid long-term over-pressure and heavy-load forced operation to prevent premature fatigue damage of internal precision components.
• When faults such as insufficient digging force, slow action, serious internal leakage, abnormal noise and system high temperature occur, replace the genuine CAT307C main hydraulic pump in time to restore the full hydraulic performance of the excavator.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

our warehouse

our warehouse

Pack and ship

Pack and ship


  • Previous:
  • Next:
    • Write your message here and send it to us

    Products categories