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The Eldorado M75-30T from Kays Engineering Inc. is a twin-spindle gundrilling machine widely used for the manufacture of orthopedic implants, including femur nails and bone screws. The machine has greatly improved the accuracy of the components while also reducing the drilling cycle time, according to the company.
The Eldorado M75-30T has a 0.75-inch (19.1mm) drilling capacity and a 30-inch (762mm) drilling depth. It features two drilling spindles with independent spindle control, allowing two different drilling cycles at the same time. The machine also utilizes precision chucks and tailstock counter-rotation of the workpiece to improve drilling performance. Tailstock position is controlled via programmable servo to accommodate different part lengths.
The Eldorado M75-30T features a durable design that incorporates flame-hardened and ground cast iron box ways and hand-scraped spindle housings (versus linear guide ways and milled surfaces). This results in superior vibration dampening, extended tool life, and improved hole accuracy and surface finish. Standard elements are also included on the M75-30T, such as a high-pressure coolant system, Beckhoff controls, and a full machine enclosure.
Related Glossary Terms
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- gundrilling
gundrilling
Drilling process using a self-guiding tool to produce deep, precise holes. High-pressure coolant is fed to the cutting area, usually through the gundrill’s shank.
