Att 1 - Salient Charcateristics.pdf

This is a Memorandum from the Department of the Air Force, 97th Air Mobility Wing (AETC) at Altus Air Force Base, Oklahoma, dated February 24, 2026, regarding a requirement for a CNC 3 Axis Milling Center.

The requirement is for Fabrication Flight to acquire a CNC 3 axis vertical milling center to support the evolution of future aircraft construction designs and legacy airframes. The equipment must meet specific technical specifications including a table capacity of 52" X 19.5" X 1750 lb maximum load, spindle nose positioning of 4.2"-29.2", and a 30 horsepower vector drive spindle operating at 12,000 RPM with 89 ft-lb torque at 2000 RPM using inline direct drive. The machine must include electronic thermal compensation for linear axis expansion and contraction, a 40 taper spindle, travel ratings of 1400 inches per minute rapids for X, Y, and Z axes, and 833 inches per minute maximum cutting speed. Additional mandatory requirements include a 55-gallon coolant system minimum, 480V three-phase power input, and a maximum machine footprint of 125"L x 93"D x 122"H. Optional features include high intensity lighting, chip auger, programmable coolant nozzle, fourth axis drive, coolant maintenance package, coolant sanitizer, through spindle coolant, through tool air blast, wireless probing, Wi-Fi camera, and coolant filter.