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Hewitt Molding Adds Two New DUO Series 43 MAKINO Wire EDMs

Oakford, IN, Hewitt Molding has just installed two DUO MAKINO Wire EDMs. The DUO series features dual wire guide options, allowing the user to choose either V-guide or PICO Precision (round) wire guides.  Whether the application is small hole threading, threading small holes in close proximity, maintaining land accuracy in contoured stamping dies, cutting tapers up to 45 degrees, or general WEDM job shop work, Makino is the only WEDM builder that provides a guide solution to every WEDM application. This option provides split precision guides for most general work including high tapers, and PICO precision guides for accurate threading of small holes in close proximity, highly accurate tapers and taper transitions up to 10 degrees, and maintaining variable height land details.

Makino's patented DuoSpark generator uses a two-step, adjustable discharge waveform that provides greater control over the machining spark gap. This technology improves energizer life, increases cutting speeds by up to 30%, and reduces wire consumption by as much as 40% compared with previous technologies. With a choice of Split Precision or PICO Precision wire guides, this added performance can be realized in nearly every EDM application. The series' dual high-pressure flush pumps provide independent control of upper and lower head flushing jets. The pumps can provide pressure up to 290 PSI to improve roughing speeds and aid in producing superior surface finishes. By circulating through two pumps, one for each machine head, the DUO is able to improve efficiency over wire EDMs containing only a single pump, reduce mechanical failures, and achieve finer finishes. The pumps are independently controlled and monitored through the controller, allowing faster adaptation to changes during machining operations and providing higher quality parts in shorter cycle times. This design provides its greatest advantages during detached nozzle applications (poor flush), and further improves the performance of Makino's HEAT technology.

Tooling Specifications

Makino DUO43 CNC Wire EDM

Table Load


2645 lbs










Maximum Work Piece





 +/- 0.000060"



+/- 0.000060"

The DUO43 wire EDM machine is the latest in technological innovation from Makino. Combining speed and precision, the DUO43 offers several unique technologies, including a dual spark generator, dual flushing pumps for independent control of upper and lower flushing pressure, and a dual wire guide option that covers the widest range of applications of any WEDM today. The DUO43 has been documented with wire consumption savings of up to 60 percent, dramatically reducing customer's wire purchasing spend.

About Hewitt Molding Company;

HEWITT MOLDING COMPANY is a custom design and manufacturer of precision thermoplastic injection molded tools and uses the latest in plastic injection molding technology, providing long and short run plastic injection molding services. The Company designs, builds, and produces World-Class plastic products for a wide range of applications and markets.

Source: Hewitt Molding Company.

Contact: Kevin Hewitt

Hewitt Molding

Phone 765-453-3889

Fax  765-453-3903

1138 East 400 South

PO Box 47 Oakford IN, 46965

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