Product ID: 014155-10 – Diamond Orifice / Diamond Nozzle (Aotufo Style)

Description:
This component is a diamond orifice assembly, also known as a diamond nozzle or water nozzle, specifically designed for Aotufo style abrasive waterjet cutting heads. It is a precision-engineered consumable component that creates the initial ultra-high-pressure waterjet before it enters the mixing chamber where abrasive is added. The assembly consists of a stainless steel housing with a polycrystalline diamond (PCD) or natural diamond orifice diaphragm with a laser-drilled microscopic hole.

This part number corresponds to an orifice diameter of 0.010 inches (0.25 mm) and features a standard 12.45 mm outer diameter with 6.5 mm height, making it compatible with universal waterjet cutting head assemblies. The diamond construction provides exceptional wear resistance, offering a service life significantly longer than standard sapphire or ruby orifices. It is rated for continuous operation at 60,000 PSI (approximately 4,137 bar).

Applications:

• Used in abrasive waterjet cutting machines to generate the initial high-pressure waterjet before abrasive mixing

• Installed in the upper section of the cutting head assembly, positioned above the mixing chamber and wear insert

• Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI (approximately 4,137 bar)

• Compatible with Aotufo and universal waterjet cutting head assemblies

Features:

• Diamond Orifice Material: Manufactured with polycrystalline diamond (PCD) or natural diamond, offering superior hardness and wear resistance compared to sapphire or ruby orifices

• Precision Laser-Drilled Orifice: Laser-drilled microscopic orifice creates an extremely precise, coherent waterjet for optimal cutting performance

• Extended Service Life: Diamond construction provides service life up to 10–20 times longer than standard sapphire orifices, reducing downtime and maintenance frequency

• 60,000 PSI Rating: Rated for continuous operation at 60,000 PSI (4,137 bar)

• Standard Dimensions: 12.45 mm outer diameter × 6.5 mm height with 0.010 inch (0.25 mm) orifice diameter

• Universal Compatibility: Compatible with Aotufo and other standard waterjet cutting head assemblies

Maintenance:

• Water Quality Critical: Dirty, hard, or inadequately filtered water can damage the diamond orifice chip, causing irregular and divergent waterjet flow. Regularly replace water filtration equipment to protect the orifice

• Visual Inspection: Before each operation, observe the waterjet at low pressure. The water stream should be symmetrical and coherent. Diamond nozzle streams are narrower and more coherent than ruby/sapphire streams. If the stream begins to widen or becomes divergent, the nozzle is damaged and requires immediate replacement

• Installation Precautions: Before installing a new orifice, thoroughly clean the cutting head assembly to ensure no debris or contaminants are present. Test the waterjet separately after installation to verify proper alignment

• Orifice to Mixing Tube Ratio: For optimal cutting performance and extended mixing tube life, maintain a 1:3 diameter ratio between the orifice and mixing tube. For a 0.010 inch (0.25 mm) orifice, use a 0.030 inch (0.76 mm) mixing tube

• Regular Inspection: Periodically inspect the orifice for signs of wear, erosion, or diameter enlargement using a magnifying glass or microscope. Even minor damage will affect jet coherence and cutting performance

• Cleaning: If blockage is suspected, use only methods recommended for diamond orifices. Never force metal objects through the orifice

• Replacement Criteria: Replace the diamond orifice when cut quality degrades (rougher edge finish, slower cutting speed, increased kerf width), when visible wear is observed, or when waterjet becomes divergent

• Storage: Store spare diamond orifices in a clean, dry, protective container to prevent dust contamination or physical damage to the delicate diamond surface

• Full Depressurization: Always fully depressurize the waterjet system before removing or servicing the orifice assembly. Follow lockout/tagout procedures

• Torque Compliance: When installing, tighten the retaining cap to the specific torque value listed in the equipment service manual. Over-tightening may crack the diamond orifice while under-tightening may cause high-pressure leaks