Product ID: 20453964 – Feed Tube Assembly (Abrasive Feed Tube for Autoline® II)

Description:
This component is a feed tube assembly, specifically the abrasive feed tube, designed for Autoline® II abrasive waterjet cutting head systems. It is a precision component that delivers abrasive garnet particles from the abrasive hopper and metering system into the mixing chamber of the cutting head, where the abrasive combines with the ultra-high-pressure waterjet to create the cutting stream.

Applications:

• Used in Autoline® II abrasive waterjet cutting heads to convey dry abrasive particles into the mixing chamber.

• Installed into the side port of the Autoline II cutting head body, positioned at an optimized angle for abrasive entry.

• Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI to 90,000 PSI (approximately 4,137 bar to 6,200 bar).

Features:

• Constructed from wear-resistant cemented carbide (tungsten carbide) to withstand the erosive nature of high-velocity abrasive particles.

• Engineered with a precise internal bore diameter optimized for consistent abrasive flow rate without blockage.

• Features a 30-degree entry angle design (or as specified for Autoline II) to direct abrasive smoothly into the mixing chamber, reducing turbulence and optimizing mixing efficiency.

• Includes sealing components (O-rings) to prevent abrasive leakage and air ingress at the connection point to the cutting head body.

• Designed for tool-free maintenance, allowing rapid removal and replacement without special tools.

• Color-coded or labeled for easy identification of compatible orifice and mixing tube sizes.

Maintenance:

• Fully depressurize the waterjet system and follow lockout/tagout procedures before servicing the feed tube assembly.

• During cutting head maintenance, remove the feed tube assembly from the side port of the cutting head body.

• Inspect the internal bore for signs of erosion, wear, or diameter enlargement caused by abrasive particle flow over time.

• Inspect the tube ends for wear, chipping, or cracking, especially at the tip that enters the mixing chamber.

• Check all O-rings and sealing surfaces for damage, wear, or deterioration; replace seals with each reassembly.

• Clean the feed tube assembly by blowing compressed air through the bore to remove any compacted abrasive or debris; do not use metal tools or wires that could damage the internal bore surface.

• Replace the feed tube assembly if internal bore erosion exceeds manufacturer-specified limits, if the tube is cracked or chipped, or if abrasive flow becomes inconsistent.

• When reinstalling, apply manufacturer-recommended grease to O-rings to ensure proper sealing and prevent damage during insertion.

• Ensure the feed tube is fully seated in the cutting head body and that the retaining mechanism (e.g., thumbscrew, clamp, or retaining ring) is properly secured.

• After reassembly, slowly pressurize the abrasive system and verify consistent abrasive flow to the cutting head.

• During routine maintenance, inspect the feed tube for wear whenever the wear insert or focusing tube is replaced.