How SF&E Cut Industry Lead Times in Half

How SF&E Cut Industry Lead Times in Half

Stainless Foundry & Engineering (SF&E) is halfway through a multi-year initiative to overhaul our sand and investment foundry processes, employee roles, and equipment. The goal: offer our customers lead times under 4 weeks, which is less than half of the 10-week industry average. The first phase of SF&E’s Throughput Improvement Project was completed six months ago, and has already reduced lead times to between 4 and 6 weeks.

Lead times are important because our customers need to forecast their own inventory, production, and delivery needs around them. A drastically reduced lead time could be critical; manufacturers can eliminate inventory guess work, react more quickly to customer demand, get to market faster, and, ultimately, increase the profitability of their products.

To accomplish this goal, SF&E had to rethink how parts move through the operating process on the foundry floor. The first phase of the Throughput Improvement Process focused on moving from a batch mentality to a single piece flow.


Reduce your lead time in foundry


Phase One: Reduce Bottlenecks 

The SF&E operations team conducted an audit of equipment, people, and processes to determine areas they could impact most. The operations team found two main bottlenecks. First, parts were moving through the operating process in a batch, so each step took an extended period of time. Second, the primary and secondary operations were sharing equipment, so batches were often stuck sitting in a queue. In addition, the production floor was setup to group similar pieces of equipment, so batches had to be moved all over the shop floor.

The operations team flipped this model on its head. Instead of batches, SF&E now focuses on smaller lot sizes determined by what would fit in a furnace and the product family it belongs to. Equipment is now grouped into cells where employees have been cross-trained to perform multiple operations. In the prior setup, each employee only focused on one skillset.

Instead of batches sitting in a queue for 1 to 2 days, waiting for each step in the operation, each small lot completes 2 to 3 operations per day. In six months, SF&E has seen a significant reduction in work in process (WIP) inventory and achieved a 15% reduction in shop order lead time. SF&E is preparing to begin Phase Two, which will involve the addition of more equipment.


Phase Two: Make Room for More

Now that the linear production process is running smoothly, SF&E is ready to remove the last hurdle to a 4 week lead time – equipment sharing. The team will introduce additional blast equipment to officially separate the primary cells from the finishing cells.

The additional blast equipment will be placed near heat treat and the shipping dock, where product will receive final blast, inspection, packaging, and then be shipped to our customers. By creating this finishing cell, each part takes only one trip through the value stream, and the travel distance between each step is minimal. Phase Two consists of a first in, first out mentality.

Additional equipment, a consecutive value stream, and a commitment to 4 week lead times has another benefit. Once the finishing cell is complete at the end of 2019, SF&E will double its foundry capacity for blasting and cleaning room operations. With the addition of a second shift to its melting and molding departments, SF&E is positioned to take on each customer’s next new challenge.


Future Optimization

In 2020, and beyond, SF&E will implement additional cells and concepts in the sand foundry. Additional phases will be focused on improving lead time for high specification work. SF&E is committed to responsiveness and driving shorter customer lead times.


At  SF&E, we understand our customers are competing in a market that is driven by lead time, availability, quality, and price. Please reach out to our team at if you would like to know how we can support you.

Other News Articles

Reverse Engineering: SF&E Creates 3D Model from Pattern

3D Modeling has proven results for OEMs, especially when sourcing complex parts. Prior to 3D modeling technology, a full pour was done to determine the integrity of a sand or investment casting. Every time a non-compliant defect was found, the rigging and gating needed to be modified and the process started all over again. This cost the customer and foundry valuable time and money.

Foundry Expert Vijay Talwar Joins Stainless Foundry & Engineering as Director of Metallurgy & Process Engineering

Stainless Foundry & Engineering (SF&E) is pleased to announce the addition of Vijay Talwar as Director of Metallurgy & Process Engineering. Talwar brings with him over 40 years of foundry experience with significant knowledge in process engineering, metallurgy, alloy development, and the markets SF&E does business in.

Oil Refinery Partners with Turbonetics and Stainless Foundry & Engineering on Illium PD Double Suction Casing

Stainless Foundry & Engineering (SF&E) helps its customers solve application challenges by focusing on quality engineering, field testing, and the proper alloy mix for the industry served. Turbonetics Engineering & Services finds trust and reliability in SF&E’s process. Read more about how this partnership has grown to support Turbonetic’s pump needs.

Core Parts: Anatomy of a Centrifugal Pump

Stainless Foundry & Engineering was established more than 75 years ago with a focus on closed impellers for pumps and other parts that were difficult to cast. While we have expanded and developed our scope of expertise and service offerings, pump parts continue to be one of our strengths. In the following, we break down the anatomy of a centrifugal pump – an equipment staple for oil and gas, food and beverage, chemical and other such industries.

For Fristam Pumps, Mutual Trust is Key to 20+ Year SF&E Partnership

When you walk through a grocery store, anything that is contained in a bottle, can, or tube most likely utilized a pump in the production process. From the milk processor removing milk from a tanker truck to the toothpaste manufacturer filling tubes, pumps make it all possible.

Return to the News Page