Case Study BIMAC, Con't on pg 29
valves, vessels, and pipework due to its strength, toughness, and weldability.
• 316 Stainless Steel, an austenitic stainless steel alloy containing chromium,
nickel, and
molybdenum, offering superior corrosion resistance particularly in chloride rich or chemically aggressive environments.
• CD4MCuN, a cast super duplex stainless steel that combines the corrosion resistance of austenitic grades with the strength of ferritic steels, optimized for use in highly corrosive or abrasive conditions.
Additionally, BIMAC routinely casts
nickel-based superalloys such as Inconel (e.g., IN625, IN713) and tin bronze alloys such as C90500, supporting diverse applications across the pump, power, chemical, and marine industries. To ensure metallurgical precision,
BIMAC utilizes an in-house optical emission spectrometer (OES) to analyze and verify the chemical composition of every heat prior to pouring. This quality control step guarantees full compliance with customer specifications and industry standards. With complete control over alloy formulation, melt chemistry, and casting operations, BIMAC delivers expedited castings with no delays due to material availability or third-party dependencies.
Finishing Castings for Pump-Repair By the end of the third week following order receipt, BIMAC typically completes the casting process. Our facility is fully equipped to perform all essential post- casting operations, including gate and riser removal, precision grinding of runners, and comprehensive ceramic shell extraction. Special attention is given to internal cavities and impeller flow passages, where precise cleaning is critical to ensure functional performance of the pump. In addition to casting and cleaning, we insure proper heat treatment or annealing operations as
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required by the material specifications. BIMAC works closely with several heat treatment partners located within a five- mile radius of our facility, offering a full range of thermal processing services including normalizing, annealing, solution treating, aging, and quenching to meet customer specifications and material property requirements. BIMAC’s workforce is highly trained in the specialized cleaning protocols required for rapid prototype castings, particularly for components with complex geometries such as impeller vanes, narrow passageways, and discharge ports. Their expertise ensures that all internal features are meticulously cleaned, free from residual ceramic material or inclusions preserving both hydraulic efficiency and dimensional integrity for downstream machining. By the fourth week, castings are prepared and shipped to the customer, allowing for immediate transition to final machining and pump reassembly. This streamlined workflow minimizes system downtime and supports rapid restoration of critical operations.
Ensuring Quality In this industry, speed of delivery often determines the winner, but rapid turnaround is meaningless without uncompromising quality. At BIMAC,
we prioritize getting the casting process right from the start to minimize defects and reduce returns. Our experienced process engineers leverage Solid Cast casting simulation software to optimize the design and placement of gates and risers. This virtual simulation is essential for accurately predicting mold filling, solidification patterns, and potential porosity, enabling proactive defect prevention. By ensuring sound castings upfront, we achieve consistently fast turnaround times even for low-volume, urgent orders. We comply with all customer- required testing protocols to ensure our parts fully meet specifications. While we do not perform non-destructive testing (NDT) in-house, we partner with a NADCAP-approved NDT provider located right next to our facility, offering a broad range of inspection services with next-day turnaround to support rapid delivery.
BIMAC: A Trusted Supply-Chain Partner for a High-Value Industry Since BIMAC began producing small quantity pump component castings with expedited lead times, our order volumes have doubled – an indicator of the critical value our parts provide in maintaining essential systems. Whether it’s keeping water flowing, delivering power to
Above: Solid Cast simulation of BIMAC part showing critical fraction solidification time (in minutes)
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