Quality control begins with the suppliers of the raw materials. We test the raw materials before they are delivered to the TIMAX tire plant. To insure the certification of raw materials suppliers, our chemists make random tests of the raw materials as they are delivered.
Throughout the batch mixing process, samples of the rubber are drawn and tested to confirm different properties such as tensile strength and density. Each tire assembler is responsible for the tire components used. Code numbers and a comprehensive computer record-keeping system allow plant managers to trace batches of rubber and specific tire components.
When a new tire design is being manufactured for the first time, hundreds of tires are taken from the end of the assembly line for destructive testing. Some of the tires, for example, are sliced open to check for air pockets between body plies, while others are pressed down on metal studs to determine puncture resistance. Still other tires are spun rapidly and forced down onto metal drums to test mileage and other performance characteristics.
In addition to internal testing, feedback from consumers and tire dealers is also correlated with the manufacturing process to identify process improvements.Constant improvements in rubber chemistry and tire design are creating exciting new tires that offer greater mileage and improved performance in extreme weather conditions.