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The DeHoff G548-D4 is a 4-spindle gundrilling machine designed for high-volume production of gun barrels. It features automated loading and unloading of the barrels to enable long periods of untended machine running. Up to 48 barrels can be preloaded into the magazine holder, and lift-and-carry automation is used to load the barrels in and out of the fixturing.
The G548-D4 has four gundrilling spindles with a barrel diameter range from 17 to 50 caliber, and a maximum barrel length of 27 inches (686 mm). The machine incorporates a cast iron drill head base with steel box ways, plus hand-scraped and fitted saddle, gibs, and straps (versus linear guide ways and milled surfaces). This results in enhanced vibration damping and extended gundrill tool life.
The G548-D4 is part of a turnkey package of gun barrel manufacturing equipment offered by DeHoff, including machines for gundrilling, pull-reaming, button rifling, cut rifling, as well as tooling, stress relieve ovens and air gauging equipment.
Related Glossary Terms
- gundrill
gundrill
Self-guided drill for producing deep holes with good accuracy and fine surface finish. Has coolant passages that deliver coolant to the tool/workpiece interface at high pressure.
- 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.
