Johnford DMC-900 ~ DMC-1500 – Moving Table Bridge Mills

Johnford’s DMC-900 ~ DMC-1500 bridge mill series are built in a moving table design and are compact, taking less floor space than conventional vertical machining centers. Longitudinal X-axis travel ranges from 35.4” ~ 59.1”, 35.4” cross Y-axis travel, and 30” Z-axis vertical travel. These machines feature a moving table and fixed column in a one-piece Meehanite cast iron design that allows for the best rigidity possible just like their larger counterparts. A rugged 90˚ bridge with offset Y-axis ways and a wide saddle keeps the spindle center line extremely close to the bridge adding enhancing additional rigidity.

Standard spindle speed for this series ranges from 0-10,000 RPMs. Optional inline drive direct spindle speeds range from 0-15,000 RPMs, and optional Weiss spindles speeds range from 0-24,000 RPMs. Large diameter, pretensioned ballscrews and powerful servo motors also aid positioning accuracy. Ergonomics are designed to facilitate easy loading and unloading of workpieces.

Massive Z-axis head and Y-axis saddle feature square box ways coated with Turcite and have been designed with diagonally arranged ribs reduce distortion, even after years of continued use. The X-axis table traverse is accomplished via heavy-duty Schneeberger roller linear ways for accurate positioning of heavy workpieces. The machines’ spindle shafts range from 2.75” (70mm) to 3.54” (90mm) and are driven by a 15HP or 25HP 2-speed geared head spindle drive (with headstock cooler) delivering outstanding cutting performance at any RPM. 

Standard features for this series include 24-tool arm-type ATC, CAT-40, CAT-50, HSK-63A and HSK-100A tool types, chip removal system consisting of 2 screw-type conveyors on each side of the table, high-volume coolant system, full enclosure (including the top), Fanuc OiM-F Plus CNC control with Alpha 1 servo system with 1,000,000 pulse encoders, Standard spindle tapers are offered in 40 and 50 taper, depending on the model. Additional standard features include flood coolant system with programmable air blast, air blast for spindle, auto lubrication with alarm, Halogen work lamp, remote han wheel, heat exchangers for control cabinets, hydraulic counterbalance for headstock, rigid tapping, and much more.

Optional features include 4 and 5-axis capabilities, 32 and 40 tools, BT-40 or BT-50 tool types, high pressure coolant through spindle, Fanuc 31iM-B Plus control, manual guide i, Renishaw auto tool presetters, Renishaw OMP-60 and 600 part probe for 2-D and 3-D surfaces, high-pressure coolant thru spindle, linear scales on XYZ, and Weiss integral spindles using HSK-63A or HSK-100A, depending on the model type.

Need a Custom-Size Bridge Mill?

Johnford prides itself on offering countless customized sizes and payload designs in both DMC moving table / fixed column designs and SDMC sliding column / fixed table designs.