14007442 Square Connector Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

14007442 Square Connector Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

The 14007442 square connector is a custom-made pipeline connection accessory for engineering machinery. Its core function is to ensure square connection, media conduction, and leak-proof sealing of pipelines in engineering machinery. It features square precision, tight sealing, pressure resistance, and durability, making it suitable for harsh environments such as mines and construction sites. It effectively connects various square interface pipelines, prevents oil and gas leaks, and ensures smooth media conduction in hydraulic and pneumatic systems.
As the core of the engineering machinery pipeline system, the “Fangzheng Connection Unit” is based on Fangzheng’s precise design and perfectly adapts to various square pipe interfaces. It has the functions of connection, sealing, and force transmission. The interface fits precisely, the sealing performance is stable, it is corrosion-resistant and wear-resistant, and it is easy to install and maintain, extending the service life of the pipeline system. It meets the industry pipeline joint standards and is a high-quality original part for maintenance, replacement, and bulk stocking.

【Core Technical Parameters】

— Product Model: 14007442
— Product Type: Square Connector (Original Equipment Manufacturer, Square Connection and Sealing Component for Engineering Machinery Pipelines)
— Compatible models: Sany, XCMG, Caterpillar and other series of construction machinery, suitable for hydraulic and pneumatic system pipeline connection replacement of loaders, excavators and other equipment.
— Material: High-strength brass (H62) / stainless steel (304), precision milled, surface galvanized/passivated for corrosion protection; tensile strength ≥300MPa, hardness HB100-120, oil and corrosion resistant, conforming to GB/T 3765-2008 connector industry standard.
— Operating temperature range: -30°C to +100°C (wide temperature stability, no brittleness at low temperatures, no aging at high temperatures, and no degradation in sealing and pressure resistance performance).
— Structural Specifications: Integrated square structure, standard square interface design, built-in sealing gasket, precise and burr-free interface, compact structure, suitable for square connection layout of pipelines, and precise connection without deviation.
— Pressure resistance: Rated working pressure ≤25MPa, ultimate pressure ≥35MPa, no leakage, no pressure relief, stable sealing and pressure resistance performance during long-term use, suitable for the pressure requirements of various engineering machinery pipelines.
— Size: The square interface is precisely matched to the specifications. The tolerance of the interface side length and thickness is IT7-IT8. The connection interface fully matches the original factory standard, fits precisely, and there is no looseness or leakage after installation.
— Installation method: Bolt fixing/thread tightening installation, compatible with original pipe square interface, easy to install without professional tools, tight seal after installation, can be used with sealing tape for better sealing effect.
— Protective performance: Surface galvanized/passivated for corrosion protection, waterproof, dustproof and oil-proof, salt spray test ≥96 hours, anti-aging and wear-resistant, suitable for dusty, humid and oily working conditions on construction sites, not easy to rust or jam.
— Service life: ≥5 years under normal conditions, ≥3 years under harsh conditions, no abnormalities after long-term pressure use, no deformation of interfaces, no failure of seals, and suitable for long-term high-load operation of equipment.

Whether in construction sites, mines, or environments with high or low temperatures and high oil content, this product ensures precise and square pipe connections, providing a tight seal, pressure resistance, and durability. It guarantees stable operation of hydraulic and pneumatic systems and reduces the incidence of pipe leaks. Original factory compatible, requiring no adjustments or installation, and easy to connect, it is the preferred genuine accessory for replacing square connectors in construction machinery.

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