Linear Accelerators


When buying a  linear accelerator careful planning ensures the maximization of investment dollars while still providing patients with quality treatment options. 

Over the years, ROS has worked with numerous radiation oncology practices to find linear accelerator solutions that match both clinical and budgetary needs. Having a team of experts at the start of an acquisition helps to ensure the linear accelerators’ project a success. With the variety of linear accelerator systems to choose from, and the volume of refurbished selection available, choosing the right linear accelerator can be a daunting task. Let ROS guide you through a comprehensive chart of the major brands of refurbished linear accelerators we work with in order to help you get started.

At ROS we provide you with understanding of the steps in order to select the appropriate linear accelerator for your specific needs, develop a plan, and execute the implementation, all resulting in a successful linear accelerator project.

Compare makes and models of linear accelerators below.

Linear Accelerator Comparison Chart

Varian High Energy
 Linear Accelerator

Linear Accelerator Comparison Chart

Varian Single Energy 
Linear Accelerators
Linear Accelerator Comparison Chart

Siemens Linear Accelerators
 Linear Accelerator Comparison Chart

Elekta Linear Accelerators

ROS Provides a variety of Varian, Siemens and Elekta Linear Accelerators

As an independent provider of used linear accelerators, we are “brand neutral." This benefits our clients because we are able to objectively help in the selection of the best linear accelerator for projects without vendor specific bias. ROS offers linear accelerators from Varian, Siemens, and Elekta. We take pride in working with you to select the right refurbished linear accelerator for your practice.

Take a look at our current inventory of Varian, Siemens, or Elekta linear accelerators.

Varian Linear Accelerator List


As one of the world's largest suppliers of pre-owned linear accelerators, ROS offers a full range of linear accelerator product and service solutions.

Whether you are seeking a basic, single energy system, or a dual energy system with multileaf collimation and IMRT/IGRT technology, ROS can deliver the solution to fit your needs. At ROS, linear accelerators are our specialty.

  • Tailored refurbishment solutions
  • Warranty, service and maintenance
  • Patient positioning, power conditioners and more
  • Dedicated project planning and logistics support
  • Equipment removals and disposals
What do I get when I buy a refurbished linear accelerator from ROS?

Choose from one of our four refurbishment processes in order to ensure you with a linear accelerator that is both affordable and reliable. Our bronze, silver, gold, or platinum, refurbishment processes each begin with an inspection of the linear accelerator by one of our engineers to guarantee you the best used linear accelerator possible. Our meticulous refurbishment process ensures that you buy a quality linear accelerator in “like new” condition.

Here is a list of our four linear accelerator refurbishment packages:



  • Used linear accelerator system is dismantled, inspected and cleaned
  • Refinishing and painting of covers and treatment table
  • Used linear accelerator inspected for structural imperfections and fatigue
  • All water, air and gas hoses are replaced
  • Inspect and replace as necessary all chains and belts
  • Inspect and replace unit wiring and cables as necessary
  • All switch decks, tap switches, relays, power supplies and controls tested
  • All meters, indicators, lamps, controls and knobs are tested, inspected and replaced as necessary or as scheduled


Includes all Bronze features, plus:

  • Reconditioned couch support panels
  • All Monitors, Klystrons, Electron Gun and all other glassware components are tested as necessary
  • All motors, electrical switches and cooling fans tested and replaced as necessary or as scheduled
  • All locks, brakes, detents and gears inspected/replaced as necessary or scheduled
  • Beam and X-ray controls are internally and externally cleaned with non-destructive cleaning agent
  • All bearings, table gears, drive assemblies, accessory mounting and track surfaces inspected and replaced or repaired as required or as scheduled
  • Any nonstandard wiring/specialized modifications are removed and unit is restored to original specifications
  • Reconditioned hand pendants
  • Inspect, clean and replace if necessary all bearings and motor drives in the gantry and treatment table
  • Mylar mirror replaced
  • Covers painted to match OEM specifications; custom painting available
  • Certificate of refurbishment for used linear accelerator
  • Mylar crosshair replaced
  • ODI and Field Lamp bulbs and sockets replaced
  • Water system demineralizer and air dryer desiccant replaced
  • Pendant cables replaced
  • Replacement of the accessory wedge mount or mount slide rails
  • Water pressure switches replaced
  • Water flow switches replaced
  • Air solenoids and gauges replaced
  • Certificate of refurbishment


Includes all Bronze and Silver features, plus:

  • Klystron Solenoid replaced
  • Thyratrons replaced
  • Vacuum pumps replaced
  • Reconditioned RF driver installed
  • Reconditioned Hand Controls
  • Gantry and Collimator wind-up cables replaced
  • Readout potentiometers replaced
  • Water pump and heat exchanger replaced
  • Flow switches, meters and controllers replaced
  • Accessory mount slides replaced
  • New and Reconditioned Power Supplies replaced
  • All table, collimator, MLC and gantry drive motors Replaced
  • All High Voltage Cables Replaced+B27
  • Electron Gun / X-Ray Tube / Waveguide replaced with good/used part(s)
  • Klystron / Magnetron replaced with good/used part
  • New Carbon Fiber Couch Top


Includes all Bronze, Silver and Gold features, plus:

  • Target / Energy switch replaced with new OEM
  • Magnetron / Klystron replaced with new OEM
  • Electron Gun or Waveguide replaced with new OEM

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Varian Single Energy Linear Accelerator Comparison Chart*

Models Clinac 6EX Clinac 600 C/CD Unique
 1999 & newer 1989 & newer 2012 & newer
Power Source Magnetron Magnetron Magnetron
Photon Energy
4 MV or 6 MV 4 MV or 6 MV 6MV
Electron Energies N/A N/A N/A
Collimator (MLC)**
80 MLC (Field size 40x40cm); 120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width) (optional)
52 MLC (Field size 26x40cm, Leaf widths 10mm);
80 MLC
(Field size 40x40cm); 120 MLC (Field size 40x40cm, Central 20cm of field - 5mm leaf width, Outer 20cm of field - 10mm leaf width)
120 MLC
Portal Imager
aSi500, aSi1000 (optional) (optional)
LC250, aSi500, aSi1000
Treatment Delivery  3D, IMRT, SRS (optional) 2D, 3D (optional), IMRT (optional), SRS (optional) 2D, 3D (optional), IMRT (optional), SRS (optional)
KV Imaging for IGRT** N/A N/A N/A
Optional Cones or mMLC Optional Cones or mMLC Optional Cones or mMLC
Treatment Couch Exact ETR, Exact (optional) Exact
$$-$$$ $-$$ $$
*Data shown here may not be accurate and is based on equipment seen in the secondary market. See manufacturers for exact data
**Similar devices are manufactured by vendors other than the linear accelerator manufacturer
***Five $$$$$ indicate that the resale demand for like systems is high, and used equipment will therefore command a higher price
Few dollar signs indicate that the resale demand is lower, and prices for used equipment is lower. One $ indicates very little, if any, value currently exists.