POM Case3-Process and Layout-Morton Salt-S271
Morton Salt Operations Tour
Introduction
Company Overview: Morton Salt is a subsidiary of Morton International.
Manufactures specialty chemicals, air bags, and salt products.
Facility Location: Silver Springs, New York, between Buffalo and Rochester.
One of six Morton salt-processing facilities in the U.S.
Employment: Approximately 200 employees ranging from unskilled to skilled.
Product Markets: Supplies salt products for water conditioning, grocery, industrial, and agricultural sectors.
Grocery business, which consists of 26 oz. round cans of iodized salt, accounts for about 15% of total production but is the most profitable.
Salt Production
Raw Material Acquisition: Salt is obtained by injecting water into salt caverns 2,400 feet underground.
Salt deposits dissolve in the water, creating brine.
Production Process:
Brine is pumped to the surface and converted into salt crystals.
Process involves boiling to evaporate liquid and remove moisture.
Continuous operation lasts about six weeks, starting at 45 tons/hour, decreasing to 75% output by week six due to scale build-up.
Maintenance: Production halts to maintain equipment and remove scale before resuming.
Storage and Shipping: Salt is stored in silos or shipped in bulk to industrial customers.
Round Can Production
Production Volume: Approximately 3.8 million round cans annually.
70% for Morton label, 30% for private label.
Production Lines:
Two high-speed production lines, each producing 9,600 cans/hour (160 cans/minute).
Operated by a minimal workforce (18 workers for both lines).
Cans Manufacturing:
Made of cardboard with a plastic pour spout.
Cardboard sheets are glued, rolled into tubes, and cut into can-size pieces.
Equipment setup is standardized; production rates are fixed.
Assembly and Quality Control
Can Assembly Process:
Separate components are moved via conveyor belts for assembly and gluing.
Cans are filled with salt, the spout is added, and they are palletized for inventory.
Quality Assurance Efforts:
Salt purity is checked upon arrival; iodine and anti-caking compounds are analyzed.
Crystal size regulated by scraping screens while magnets remove fine metal pieces.
Contaminated salt is redirected to nonfood products.
Can quality is ensured through visual inspections of assembly, weights, and label alignment.
Equipment sensitive to defective cans, leading to production slowdowns but preventing defects.
High quality costs due to scrapped product, the need for inspectors, and extensive lab testing.
Production Planning and Inventory
Sales Capacity: The plant can sell all produced salt.
Scheduling Responsibilities: Production scheduler ensures proper salt distribution based on inventory levels and production capacities.
Storage Management: Ensures sufficient silo capacity for incoming production from brine production.
Equipment Maintenance and Repair
Equipment Age: Most machinery is from the 1950s, requiring considerable maintenance.
Breakdowns: Regular wear and tear lead to breakdowns, necessitating repairs.
Skilled workers in the plant's tool shop repair or fabricate parts due to unavailable replacements for the old equipment.
Questions for Review
Describe Salt Production: Steps from brine production to finished round cans.
Quality Assurance: Brief overview of quality checks in round can production.
Reasons for Old Equipment: Discuss why the company might retain old processing equipment.
Product-Process Spectrum: Where to place salt production within this spectrum.
Annual Production Estimate: Calculate approximate tons of salt produced annually based on provided hints.
Improvement Suggestions: Recommendations for operational enhancements in the plant.