VMC’s Components Promote Speed, Accuracy
SMTCL Americas’ VMC850B is designed to provide power, speed and accuracy.
SMTCL USA, Inc.’s VMC850B is designed to provide power, speed and accuracy. It features a full FANUC package, including drives, motors, resolvers and a 0i control. It also uses a GIFU 24-position side toolchanger and a Spintech 10,000-rpm spindle with a high-quality rotary union for through-spindle coolant. The THK linear ways pump lube directly to the high-quality bearings. Other components include Hi-Win ballscrews, a Bijur lubricating system and Grundfos. The German casting design gives the machine a firm, rigid structure.
The 40-taper VMC can machine aluminum, cast iron, stainless steel, Inconel and titanium with good surface finish. The 50-taper version, with its ZF 2-speed gear box, can reduce cycle times and improve finishes for users machining titanium.
The machine has a maximum rapid feed rate of 1,250 ipm and a cutting feed rate of 787 ipm. The through-spindle coolant enables increased speeds while maintaining good finish, and deeper roughing passes reduce cycle time.
While aluminum molds are commonly used to create prototypes or to serve as stopgap bridge tooling, they are starting to receive greater attention for production work. This shop’s approach to creating aluminum molds in one day to three weeks is the same for each of these situations.
Cryogenic machining achieves dramatic tool life gains not by flooding the cut, but by refrigerating the tool.
Different machines offer different approaches to rotary travel, and each design has its own strengths. Here's how they compare.