Application of Intelligent Crimping Machines—An Introduction to the Production Process of High-Pressure Hose Assemblies

High-pressure hose assemblies are an important component of construction machinery equipment. Their quality, sealing performance, cleanliness, and precision directly affect the operational safety of the entire equipment after installation; therefore, extra care should be taken when selecting them.

Hazards of oil leakage from high-pressure hose assemblies: First, it results in wastage of system hydraulic fluid; second, oil leakage can cause a drop in operating pressure within the hose, thereby reducing operational efficiency; third, hydraulic oil is highly flammable—should leaked oil come into contact with high temperatures or open flames, it could easily ignite, leading to serious consequences.

Hazards of Contamination in High-Pressure Hose Assemblies: High-pressure hose assemblies are critical transmission components that transport hydraulic fluid from one piece of equipment to another. If the inside of the hose is contaminated, the fluid flowing through it will also become contaminated, thereby introducing contaminants into the next component and placing an increased burden on its filtration system. In extreme cases, this could even lead to blockage of the filtration layer, impairing the hydraulic oil’s ability to function properly and ultimately halting the entire operation.

The entire production process of the high-pressure hose assembly consists of seven stages:

The first step—selecting high-quality hoses and fittings—is a critical stage for ensuring the safe performance of high-pressure hose assemblies.

Step 2: CNC cutting—high cutting precision and no contact with the ground throughout the process, thus avoiding contamination.

Step 3: Thoroughly clean the surface and interior of the hose to remove dust and contaminants, preventing any contamination while performing a seamless stripping operation.

Step 4: For the intelligent CNC crimped hose assembly, monitor the real-time pressure curve during the manufacturing process and conduct a steel ball test to ensure that the inner diameter of the assembly does not shrink after crimping.

Step 5: The entire hose assembly undergoes a 100% hydrostatic pressure test to ensure that its actual working pressure matches the marked rating.

Step 6: Seal the connectors at both ends of the high-pressure hose assembly to prevent dust and dirt from entering during storage and transportation.

Step 7: Use the hose identification system to apply markings directly onto the hose body. This enables quality traceability and allows users to query the application scenarios, applicable media, and warranty period.