Heat Sink Tube
Теплоотводная трубка
Tubo disipador de calor
The 800991812 Heat Sink Tube is a high-efficiency thermal management component designed to dissipate excess heat from critical hydraulic and pneumatic systems on XCMG articulated dump trucks. This precision-engineered tube combines exceptional thermal conductivity with robust structural integrity, ensuring that heat generated during high-pressure fluid operation is rapidly transferred away from sensitive components, maintaining optimal operating temperatures and extending system life. Manufactured from high-grade aluminum alloy with a fully corrosion-resistant anodized coating, the 800991812 heat sink tube delivers superior heat dissipation, lightweight durability, and long-term reliability, making it an essential component for maintaining hydraulic system performance and machine productivity in the most demanding mining, quarrying, and heavy construction environments.
The 800991812 Heat Sink Tube is a high-efficiency thermal management component designed to dissipate excess heat from critical hydraulic and pneumatic systems on XCMG articulated dump trucks.
This precision-engineered tube combines exceptional thermal conductivity with robust structural integrity, ensuring that heat generated during high-pressure fluid operation is rapidly transferred away from sensitive components, maintaining optimal operating temperatures and extending system life.
In the harsh operating conditions typical of mining, quarrying, and heavy construction, hydraulic oil and pneumatic air can reach elevated temperatures that degrade fluid properties, accelerate seal wear, and reduce component reliability.
The 800991812 heat sink tube is engineered to provide passive cooling through extended surface area and high thermal conductivity, reducing fluid temperatures without the need for active cooling systems.
Manufactured from high-grade aluminum alloy with a fully corrosion-resistant anodized coating, this heat sink tube delivers superior heat dissipation, lightweight durability, and long-term reliability.
This component is a direct OEM replacement, restoring the original thermal management capability and ensuring that all hydraulic and pneumatic systems operate within their designed temperature ranges throughout the vehicle’s operating life.
The 800991812 Heat Sink Tube is a fundamental element in maintaining hydraulic system health and operational reliability on XCMG articulated dump trucks.
Hydraulic oil temperature directly affects viscosity, lubrication properties, and the rate of chemical degradation. Excessive heat accelerates oxidation, leading to sludge formation, varnish deposits, and reduced component life.
The heat sink tube effectively reduces oil temperature by transferring heat to the surrounding air, helping to maintain oil viscosity and protect pumps, valves, and actuators from thermal damage.
By ensuring that the 800991812 heat sink tube is in optimal condition, operators can extend fluid change intervals, reduce component wear, and maximize the productivity of their articulated dump trucks.
The 800991812 Heat Sink Tube features a carefully engineered design that combines maximum heat dissipation, lightweight construction, and durability.
The tube is extruded from 6061-T6 aluminum alloy, a material known for its excellent thermal conductivity (≈180 W/m·K) and high strength-to-weight ratio.
An outer diameter of 50 mm and a wall thickness of 4.5 mm provide ample structural integrity, while the integral longitudinal fins (12 fins, 4 mm height) significantly increase the heat transfer surface area.
The fin design maximizes convection heat transfer to the surrounding air, even in low-velocity airflow conditions typical of under-chassis installations.
The tube ends are precision-machined to accept standard hydraulic or pneumatic fittings, allowing easy integration into existing fluid circuits without the need for custom adapters.
A black anodized finish provides excellent corrosion resistance and enhances thermal emissivity, further improving heat dissipation performance.
The 800991812 Heat Sink Tube is produced using advanced extrusion and machining processes, ensuring consistent geometry and thermal performance.
The aluminum billets are sourced from approved mills and undergo rigorous inspection for chemical composition and mechanical properties.
Precision extrusion ensures uniform fin geometry and consistent wall thickness, while CNC machining guarantees accurate end preparation and fitting dimensions.
Each tube is 100% inspected for dimensional accuracy, surface finish, and fin integrity. A sample from each production batch is subjected to thermal performance testing and salt spray testing.
The 800991812 Heat Sink Tube is protected by a high-quality anodized coating that ensures exceptional corrosion resistance and durability.
The MIL-A-8625 Type II anodized coating provides a hard, abrasion-resistant surface that protects against corrosion, chemical attack, and UV degradation.
The black anodized finish not only enhances corrosion protection but also improves thermal emissivity, increasing the tube’s ability to radiate heat.
The anodized coating also prevents galvanic corrosion when the tube is installed in contact with other metal components, ensuring long-term reliability in aggressive mining environments.
This robust surface treatment ensures that the heat sink tube retains its protective properties and appearance even after years of service in demanding construction and mining applications.
The 800991812 Heat Sink Tube is manufactured from premium 6061-T6 aluminum alloy, a material widely recognized for its excellent combination of strength, corrosion resistance, and thermal conductivity.
6061-T6 offers a tensile strength of approximately 310 MPa and a yield strength of 276 MPa, providing the structural integrity required to withstand vibration and pressure loads encountered during vehicle operation.
The alloy’s high thermal conductivity (≈180 W/m·K) ensures efficient heat transfer from the fluid to the fins and into the surrounding air.
Each tube is produced in ISO 9001 and ISO 14001 certified facilities, with strict process controls at every stage – from raw material verification to final inspection and testing.
The chemical composition is verified using spectrometer analysis, ensuring it meets the specified requirements for magnesium, silicon, and other alloying elements.
Dimensional accuracy is verified using precision measurement tools, with critical outer diameter, wall thickness, fin height, and overall length checked against the engineering drawings to ensure a perfect fit.
The result is a heat sink tube that delivers consistent, reliable thermal management, with a service life that matches or exceeds that of the original equipment.
The 800991812 Heat Sink Tube plays a vital role in preventing thermal-related failures and ensuring the operational reliability of XCMG articulated dump trucks.
Excessive hydraulic oil temperatures can cause viscosity loss, leading to inadequate lubrication, increased wear, and premature failure of pumps, motors, and valves.
High temperatures also accelerate oil oxidation, forming acidic compounds that attack seals and internal components, and creating sludge that can clog filters and restrict flow.
The 800991812 heat sink tube mitigates these risks by providing passive, reliable cooling that helps maintain fluid temperature within the recommended operating range, even under sustained heavy loads.
Regular inspection of the heat sink tube is essential to check for damage, corrosion, or obstruction of the cooling fins. Any damaged or blocked tubes should be cleaned or replaced immediately.
Using a genuine XCMG 800991812 heat sink tube ensures that the component meets the original design specifications, providing the intended level of cooling performance.
The 800991812 Heat Sink Tube is specifically designed for use in XCMG articulated dump trucks, including the XDA30, XDA40, XDA45, XDA45U, XDA60, and TA30 series models.
These vehicles are deployed in a wide range of demanding applications, including open-pit mining, quarrying, heavy construction, water conservancy, harbour operations, and large-scale earthmoving projects.
The heat sink tube is used in hydraulic oil cooling circuits, pneumatic system aftercoolers, and other fluid systems where passive heat dissipation is required.
Beyond articulated dump trucks, this tube can also be used in other XCMG equipment that employs similar hydraulic or pneumatic system configurations, such as wheel loaders, crawler dozers, and motor graders.
The tube’s standard dimensions and fitting compatibility make it a versatile replacement part for a wide range of heavy machinery, providing flexibility for maintenance and repair operations.
When replacing a worn or damaged heat sink tube, using the genuine 800991812 part ensures correct fitment, material properties, and cooling performance, safeguarding the fluid systems it serves.
It is always recommended to inspect the associated hoses, fittings, and fluid condition when installing a new heat sink tube.
Installing the 800991812 Heat Sink Tube is a straightforward process that requires attention to cleanliness, proper sealing, and secure mounting.
Before installation, depressurize the hydraulic or pneumatic system and drain the fluid to a suitable container. Clean the tube ends and the mating ports to remove any dirt, debris, or old sealant.
Inspect the tube for any signs of damage, such as bent fins, cracks, or corrosion. If any damage is found, replace the tube before proceeding.
Apply a suitable thread sealant or O-ring lubricant to the fittings and install the tube into the circuit, ensuring that the fins have adequate clearance from surrounding structures to allow free airflow.
Tighten the fittings to the manufacturer’s recommended torque specification, typically 25–35 N·m for aluminum connections, to prevent leakage without damaging the threads.
After installation, refill the system with the appropriate fluid, pressurize, and check for any signs of leakage around the fittings. Operate the system and verify that the tube is effectively dissipating heat.
During routine maintenance, inspect the tube for signs of corrosion, fin damage, or blockage. Clean the fins with compressed air or a soft brush to remove dirt and debris that could reduce cooling efficiency.
If any damage or significant wear is detected, replace the tube immediately. Keeping a spare 800991812 heat sink tube on hand can help minimize downtime during unexpected repairs.
The 800991812 Heat Sink Tube is manufactured in ISO 9001 and ISO 14001 certified facilities, adhering to the highest quality and environmental management standards.
The raw material, 6061-T6 aluminum, is sourced from approved mills and undergoes rigorous incoming inspection, including chemical analysis, tensile testing, and hardness testing.
The extrusion, machining, and anodizing processes are precisely controlled, with regular tooling maintenance and quality checks to ensure consistent part geometry and surface finish.
The anodizing process is carefully monitored, with coating thickness and adhesion verified using non-destructive testing methods.
Each tube is 100% inspected for visual defects, dimensional accuracy, and fin integrity. A sample from each production batch is subjected to thermal performance testing, salt spray testing, and pressure testing.
These rigorous quality assurance measures guarantee that every 800991812 heat sink tube delivers the reliability, thermal performance, and durability expected from a genuine XCMG component.
Using genuine XCMG 800991812 heat sink tubes guarantees proper fit, optimal cooling, and compatibility with the vehicle’s hydraulic and pneumatic systems.
The 800991812 Heat Sink Tube is an essential component for ensuring the thermal management and operational reliability of XCMG articulated dump trucks.
As a critical passive cooling component, this tube provides efficient heat dissipation that maintains hydraulic oil and pneumatic air at safe operating temperatures, protecting pumps, valves, seals, and other sensitive components from thermal damage.
Its high-strength aluminum construction, advanced anodized coating, and precision-engineered fin design ensure exceptional durability and long-term performance in the most demanding mining, quarrying, and construction environments.
With its precise OEM fitment and uncompromising quality, this heat sink tube offers outstanding value and peace of mind for fleet operators, maintenance professionals, and equipment owners alike.
Choosing the genuine XCMG 800991812 heat sink tube protects your hydraulic and pneumatic systems from overheating, reduces maintenance costs, and ensures that your articulated dump truck remains productive, reliable, and safe.
Always source genuine XCMG parts from authorised distributors to guarantee authenticity, compliance with OEM specifications, and long-term performance.
Whether for planned maintenance or emergency repairs, the 800991812 heat sink tube is the trusted choice of professionals who demand the highest standards of quality and reliability in their heavy equipment.
