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Dual Supported Precision Ground Ball Leadscrews and Box Design Saddle
The X, Y and Z axes have ultra-high precision, zero backlash, pre-tensioned 1.57" (40mm) reciprocating ball screws, all three of which are anchored on both ends. This eliminates the undamped vibration, premature wear and loss of accuracy which can result from one-end-only supported systems. As well, the saddle's full-box, structural design provides rigidity superior to the typical cantilevered ways design..

Meehanite Castings
Rugged Meehanite castings with heavy ribbing give our VMCs superior rigidity and dampening capabilities. The 3516 is over 12,500 lbs. (5,670 kg), while the 4824 weighs a massive 16,500 lbs. (7,484kg).

Chip Conveyor (optional)
Full 4th axis rotary table: 9"-16" (229-406 mm)-diameter, 4th axis rotary table designed for vertical or horizontal mounting setup with matched tail stock, lubrication by oil bath for longer bearings and gear life, Division resolution: 0.001º, 4th and 5th axis tilting rotary table combination available.

Hardened & Precision Ground Boxways - All 3 Axes
Massive integral square guideways eliminate the vibration-transmitting problems of linear ball guideways. Durability is ensured by hardening the boxways, while smooth, quick response comes from grinding the ways to a 16 micro-inch finish and Turcite coating all weight-bearing surfaces. In order to maximize strength and durability, while at the same time minimizing vibration, the 4824's four boxways are manufactured using a steel and cast steel/iron integral structure. This eliminates the inherent weakness of bolted-on boxways.

Geared Headstock
The VMC 3516 and 4824 both employ a two-speed, geared head and a spindle with ABEC 9 bearings to deliver usable power over a full range of cutting speeds. The VMC 4824's 21.5 HP (peak) spindle motor reaches its full horsepower rating at 173 RPM of the cutter and produces 653 ft.-lbs. of torque – allowing you to mill, drill and tap materials other VMCs can barely cut.

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