Varian RAD-21 Sapphire Imaging Tube Date of Manufacture 09-2013

Varian RAD-21 Sapphire Rotating-Anode X-Ray Tube (DOM: 09-2013)

The Varian RAD-21 Sapphire is a high-performance rotating-anode X-ray tube designed for the rigors of modern diagnostic imaging. Engineered for both radiography and fluoroscopy, the RAD-21 is built into the renowned Sapphire housing, which utilizes advanced thermal management to ensure structural resilience and consistent output during heavy-duty clinical sessions.

With a 300 kHU heat capacity and a dual focal spot configuration (0.6 mm / 1.2 mm), this tube provides the versatility required for high-resolution extremity work as well as high-power chest and abdominal imaging. Manufactured in September 2013, this unit has been professionally harvested and remains a dependable choice for hospital radiology departments and private imaging centers.

Key Features

• Manufacturer: Varian (Varex Imaging)

• Model: RAD-21 Sapphire

• Date of Manufacture: September 2013

• Heat Capacity: 300 kHU (Anode)

• Focal Spots: 0.6 mm (Small) / 1.2 mm (Large)

• Target Angle: 12°

• Power Rating: 40/100 kW

• Housing Type: Sapphire (Oil-cooled, high-thermal durability)

Clinical & Operational Advantages

• Exceptional Thermal Recovery: The 300 kHU rating allows for rapid, sequential exposures, minimizing the "cooling wait times" that can slow down a busy X-ray suite.

• Superior Imaging Detail: The 0.6 mm fine focal spot is optimized for orthopedic and pediatric imaging where visualizing subtle fractures and trabecular patterns is critical.

• Rugged Housing Design: The Sapphire glass and metal housing provide enhanced protection against electrical arcing and structural fatigue compared to standard imaging tubes.

• Broad System Compatibility: As a widely utilized Varian model, the RAD-21 is compatible with a vast array of OEM and third-party generators and overhead tube cranes.

Condition & Quality Assurance

• Status: Used – Harvested System Subcomponent.

• Extraction Note: This tube was professionally extracted from a decommissioned imaging system by qualified technicians. It was handled with extreme care to maintain vacuum integrity and preserve the high-voltage receptacles.

• Functional Assessment: Being sold as a functioning replacement part. The housing is free of oil leaks and the bellows are intact.

Warranty

• ✔ Primis 90-Day Reliability Warranty

  We stand behind the functionality of this tube. This item includes a 90-day warranty covering core functionality. Note: Warranty requires installation by a certified X-ray service professional and adherence to proper seasoning (warm-up) protocols.

What’s Included

• (1) Varian RAD-21 Sapphire X-Ray Tube Assembly

Shipping

• Specialized Handling Required: Due to weight and the fragile nature of the internal glass insert, this unit will be crated or double-boxed with specialized foam suspension.

• Ships within 1-2 business days.