The A300 is an arm style caliper brake designed to accept a large selection of thrusters. These thrusters include spring applied hydraulic released, spring applied pneumatic released, hydraulic applied spring released, and pneumatic applied spring released. The A300 requires a minimum disc diameter of 12″ and is off ered in 4 sizes to accommodate a ½”, 1″, 1-3/16″, and 1-1/2″ thick disc. The design of the caliper allows the user to quickly convert between right and left handed designs eliminating the need for multiple part numbers. The AS thruster is a direct applied thruster that is pneumatically applied spring released. The Pneumatic applied thrusters are offered in multiple sizes to meet the needs of our customers. The T200 thruster produces a maximum braking force of 950 pounds at the maximum operating pressure of 80 psi.