Abstract: Production leveling is a new concept in the industries. Day by day the production is decreasing so we have to implement new techniques in production system. The heijunka is new concept for production leveling. It is a technique for reducing the Unevenness which in turn reduces waste. The goal is to produce intermediate goods at a constant rate so that further processing may also be carried out at a constant and predictable rate. Where demand is constant, production leveling is easy, but where customer demand fluctuates, two approaches have been adopted demand leveling and production leveling through flexible production. To prevent fluctuations in production, even in outside affiliates, it is important to minimize fluctuation in the final assembly line. The final assembly line should never assemble the same automobile model in a batch. Instead, for the level production, assembling a mix of models in each batch and the batches are made as small as possible. The lean manufacturing is also use to increase production rate by eliminating the waste. also takes into account waste created through overburden and waste created through unevenness in workloads. In lean manufacturing the inventory get reduces also the space consumption reduces by the reducing the inventory. Large corporations use production leveling to help them trim expenses in a variety of ways, many of which benefit companies that produce thousands of items or large-ticket products. Small business owners can also benefit from a more steady production flow in ways that not only reduce costs, but also improve quality and customer satisfaction. Understanding the benefits of level production manufacturing can help you assess your operations and improve your processes.

Keywords: Heijunka, demand fluctuation, batch, inventory.