The design of dippers for cable shovels has essentially remained unchanged for the last 50 years. In the past 10 years shovel manufacturers have started taking another look at dipper design, resulting in changes that have borne models from the major manufacturers that address some of the wear conditions and material retention problems that dominate maintenance and operational costs. However, with the exception of added lateral curvatures to the front and corners of the dipper, the geometry is essentially unchanged. JPi's design methodology uses criteria that have resulted in the first new cutting dipper design over 50 years. The design is based on kinematic considerations, reflected in a revolutionary geometry that matches the range of motions of the shovel, designed to minimize wear, impact loading and power required to dig, thus maximizing productivity for a minimum energy requirement. The shape configuration is such that the weight of the dipper through wall thickness is reduced, enabling a larger capacity dipper to be conceived for the same shovel. Benefits are reflected in reduced operational and maintenance costs and increased productivity