Product Name: Focusing Tube (R-500) – Part No. 05097928

Description:
This component is a focusing tube, also known as a mixing tube or abrasive nozzle , specifically designed for high-pressure abrasive waterjet cutting systems. The numbers in the description (00210533 mm and 200508 mm) refer to the inner diameter (approximately 0.83 mm) and overall length (approximately 200.5 mm) of the tube.

Manufactured from ultra-hard, wear-resistant tungsten carbide , it is installed in the cutting head assembly downstream of the mixing chamber. Inside this tube, the high-pressure waterjet and abrasive particles are accelerated and focused into a coherent cutting stream. This is a critical consumable part that undergoes constant erosion and requires periodic replacement to maintain cutting quality .

Applications:

• Final focusing element for the abrasive waterjet in cutting heads .

• Defines the kerf width and cutting precision for the waterjet system.

• Designed for use in compatible waterjet cutting head assemblies .

Features:

• Material: Premium-grade tungsten carbide for exceptional wear resistance .

• Inner Diameter: Approximately 0.83 mm (0.0327 inches), suitable for general cutting applications .

• Length: Approximately 200.5 mm (7.89 inches), engineered for specific cutting head configurations.

• Critical Consumable: Designed for periodic replacement; lifespan depends on abrasive type, operating pressure, and water quality .

Maintenance:

Failure Diagnosis (When to Replace):

• Reduced Cutting Performance: Noticeable decrease in cutting speed, rougher edge finish, or increased taper (wider kerf) indicates bore wear .

• Visible Bore Damage: Inspect the exit orifice for ovality, flaring, or visible bore enlargement .

• Asymmetric Wear: Uneven wear on the tube outlet circumference indicates misalignment, significantly shortening tube life .

Usage Tips:

• Indexing Practice: Rotate the focusing tube by 1/4 turn every 10-12 operating hours to distribute wear evenly around the circumference and extend service life .

• Alignment Check: Ensure perfect coaxial alignment between the water orifice and focusing tube. Misalignment causes asymmetric wear and poor cut quality .

• Handling Caution: The focusing tube is extremely hard but brittle; handle carefully to avoid chipping or cracking during installation.

• Replacement: Always replace the tube when cut quality degrades to prevent further loss of performance and potential damage to the cutting head.

• Full Depressurization: Always fully depressurize the waterjet system and follow lockout/tagout procedures before any maintenance.