For 555-0919 5550919 Control Valve Assy Main CAT 336 320CG Excavator Engine Parts

For 555-0919 5550919 Control Valve Assy Main CAT 336 320CG Excavator Engine Parts

Specification

Description

This product is a main control valve assembly, a core hydraulic control component designed specifically for excavator engines, matching the 555-0919 (5550919) model and compatible with 336, 320CG and other series of excavators. Integrated with multiple directional control valve groups and hydraulic control modules, this assembly precisely distributes hydraulic oil flow to realize the coordinated control of excavator boom, arm, bucket, and travel movements, serving as a key component to ensure the smoothness and accuracy of excavator operations.

Advantage

Precise Control: Adopts a modular valve group design to achieve fine distribution of hydraulic flow, ensuring sensitive response and accurate positioning of all excavator movements, effectively improving operation precision.
High Reliability: Manufactured with high-strength alloy casting and precision machining, it features excellent impact and fatigue resistance, adapting to long-term high-intensity operations in complex working conditions such as mining and infrastructure construction.
High Efficiency & Energy Saving: Optimized flow channel design reduces hydraulic resistance and energy loss, improving energy efficiency by reducing fuel consumption while ensuring operational efficiency.
Strong Adaptability: Manufactured in strict accordance with original factory specifications, it can directly replace original components of corresponding models with easy installation, no additional modification required, and strong compatibility.
Long Service Life: Key seals are made of wear-resistant and high-pressure resistant materials, effectively preventing hydraulic oil leakage, extending the overall service life of the product, and reducing maintenance costs.

Performance

Working Pressure: Withstands the rated working pressure of the excavator system, meeting heavy-duty operation requirements with excellent peak pressure tolerance.
Flow Range: Adapts to high-flow hydraulic systems, stably supporting combined excavator movements (e.g., boom lifting + arm retraction) without obvious hysteresis.
Temperature Adaptability: Operates stably in ambient temperatures ranging from -20℃ to +80℃, adapting to operation scenarios in different regions and seasons.
Leakage Control: Adopts a multi-stage sealing structure with internal leakage far below industry standards, ensuring stable hydraulic system pressure and avoiding power loss.
Response Speed: High linearity between spool displacement and flow output, short response time to operation commands, improving the smoothness and controllability of equipment operation.

Application Scenarios

Suitable for the hydraulic control systems of excavator engines in 336, 320CG and other series, widely used in engineering fields such as mining, infrastructure construction, earthwork engineering, and urban renovation, serving as the core hydraulic component to ensure efficient excavator operation.

FAQ

Q1: When will my goods be shipped?
A: Your goods will be dispatched within 24 hours after payment confirmation.

Q2: What is the lead time?
A: We maintain sufficient stock for immediate fulfillment.

Q3: What shipping methods do you offer?
A: We ship via sea, air, or express (DHL, FedEx, TNT, UPS, EMS).

Q4: What is the delivery time?
A: Stock items take 2 to 5 days; pre-order items take 7 to 15 days. Contact us for specifics.

Q5: How can I track my shipment?
A: We will provide you with the tracking number as soon as your order is shipped.

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