Haas has now expanded its successful drill/tap/mill product line with a pair of high-speed, lean-style machining centers – the DT-2 and DM-2 – that provide the same high acceleration rates, fast axis speeds, and short tool change times as their smaller brethren, while offering an additional 8" (203mm) of X-axis travel and table length – with only a slight increase in footprint.
The new DT-2 and DM-2 are identical in specifications, except for spindle taper and tool changer. The DT-2 is a BT30 taper machine, with a 15,000rpm inline direct-drive spindle and a high-speed 20+1 side-mount tool changer. It is available with an optional 20,000rpm spindle. The DM-2 is a 40-taper machine, with a 15,000rpm inline direct-drive spindle and a high-speed 18+1 side-mount tool changer. The new DT and DM both allow high-speed rigid tapping to 5,000rpm, with up to four times retract speed to shorten tapping cycles.
Both machines offer a 28" x 16" x 15.5" (508mm x 406mm x 394mm) work cube and a 34" x 15" (864mm x 381mm) T-slot table. The increased table size, longer X-axis travel, and larger work envelope easily accommodate multiple fixtures and multi-spindle rotary tables for increased production and setup flexibility. Yet, their compact footprint still allows multiple machines to be placed side-by-side for efficient use of valuable shop floor space.
The spindle on both machines features a 15hp (11.2kW) vector drive system that provides 46ft-lb (62Nm) of cutting torque. The spindles are coupled directly to the motors to reduce heat, increase power transmission, and provide excellent surface finishes. Cutting feedrates for both machines are 1,200ipm (30.5m/min), and 2,400ipm rapids and high acceleration rates combine to shorten cycles times and increase throughput.
For efficient chip removal, the DT-2 and DM-2 feature steeply sloped internal sheet metal. Optional twin chip augers transport chips to exit at the rear of the machine, allowing multiple machines to be placed close together. A rear chip-lift auger is also available for higher-volume applications. A 45-gallon (170L) flood coolant system is standard, with options for a programmable coolant nozzle, and high-pressure through-spindle coolant systems. A wide selection of options is available to further boost productivity, including high-speed machining software, wireless tool and work probing, fourth- and fifth-axis capability, and much more.
Source: Haas