Permanent magnet electric motors typically use rare earth elements such as Samarium and Neodymium. The commodity price of such elements may be unstable in the future. As such, a challenge for Lafert to meet the cost stability expectation of customers by offering strategically priced products. Therefore Lafert developed and introduced an innovative, cost effective Interior Permanent Magnet Electric Motor (IPM) design that will be best positioned to enjoy a key competitive edge over the global market. The new IPM design will be launched under the name HPF. Identifying the eventual shortcomings of standard permanent magnet electric motors that are currently available in the market, Lafert has clearly taken advantage of a unique product design to offer improved electrical efficiency at stable and reduced production costs to its customers spread across the World. Through its offer of this innovative product, Lafert has tackled the issue of the increasing cost of rare earth elements. The new sensorless, interior permanent magnet rotor design has been constructed without the use of rare earth element magnets. Lafert has thus met the critical and growing demand for cost- and energy-efficient electric motors through its introduction of the innovative Synchronous IPM IE4 motor.