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FFG DMC DL 60V[L]/60V[L]M
DL 60V[L]/60V[L]M
Travel (X/Z) (mm) (inch) 260 x 480 (10.24″ x 18.90″)
Guideway Type BOX Way
Spindle speed (rpm) 3,000
Max. No. of Tool (pcs) 12 / M:BMT65
FFG DMC DL 80V[L]/80V[L]M
DL 80V[L]/80V[L]M
Travel (X/Z) (mm) (inch) 390 x 780 (15.35″ x 30.71″)
Guideway Type BOX Way
Spindle speed (rpm) 2,000
Max. No. of Tool (pcs) 12 / M:BMT75
JOHNFORD DMC Series
The extensive Johnford DMC series of 27 moving-table bridge mills provides a comprehensive selection of machine sizes and capabilities.
Machine X-Y-Z travels range from 36″ x 36″ x 30″ (3455 mm x 3455 mm x 760 mm) to 196″ x 157″ x 32/42″ (4978 mm x 3989 mm x 812/1067 mm), with W-axis travel optional on the largest machines. Spindle tapers include CT-40 (HSK-63) and CT-50 (HSK 100). Spindle power, depending on the machine, ranges from 15 hp to 35 hp.
Most models have one-piece column and bridge castings. Massive Z-axis heads and Y-axis saddles feature square box ways coated with Turcite and have diagonally arranged ribs engineered to minimize distortion than can result long-time heavy duty service. The X-axis table traverse is accomplished via heavy duty Schneeberger roller linear ways for accurate positioning of heavy work pieces. Large diameter, pretensioned ballscrews and powerful servo motors also aid positioning accuracy.
Ergonomics are designed to facilitate easy loading and unloading. Twin screw-type conveyors plus a caterpillar conveyor ensure complete chip removal with little manual cleaning.
YOU JI VLS Series
You Ji VLS-2000ATC vertical turning lathes are large, high precision, heavy-duty machines, competitively priced for heavy-duty turning of large size workpieces. Maximum turning diameter is 98.4″ (2500 mm). The rigid double columns, cross rail, and machine base are Meehanite castings, heavily ribbed to minimize thermal distortion and dampen vibration.
The X and Z axes are a rigid box way design coated with Turcite B. The Z axis is a large 9″ x 9″ (228 mm x 228 mm) square cast steel ram that is rigid even when extended its full 37.4″ (950 mm) length. Class 3 ballscrews are 2.48″ (63 mm)-dia. and driven directly by servo motors, eliminating belts or gears. The hydraulically clamped cross rail moves on box ways in 7.87″ (200 mm) increments.
The heavy-duty spindle incorporates a high-precision 44.5″ (1130 mm) dia. O.D. / 35.5″ (901 mm) dia. I.D. Timken cross roller bearing to endure high axial and radial loads. Twin 50 hp (100 hp total) Fanuc high-torque spindle motors are coupled with twin 2-speed ZF gear boxes that transmit power through an intermediate gearbox. The table is driven by a Class-1 ring gear with dual pinion gears that provide further gear reduction and torque multiplication. Spindle/table torque is 41,133 lb-ft, providing the power for heavy duty machining. The spindle can support a table load of 22,000 lbs.
An optional C-axis utilizes twin spindle motors and twin pinion drives in tandem to produce precise positioning and repeatability without the need for a separate C-axis servo motor and gearbox. Positioning is less than 10 arc seconds while repeatability is less than 5 arc seconds.
The standard 12-station automatic tool changer stores 50-taper tools, and other tool change options are available. The umbrella style automatic tool changer provides shortest route tool selection and is completely shielded from chips and coolant, which wash directly into the standard chip conveyor
