Product Overview

The double-column vertical lathe is a CNC turning machine with two columns supporting a crossbeam above a rotary worktable. It is used for large flanges, bearing rings, forged wheels, turbine components and heavy cast-steel parts in power-equipment, shipbuilding and industrial machinery production.

Key Features

Symmetrical Crossbeam Support

The two-column structure carries the tool system across a machining diameter of 1,600–3,150 mm. When a wide steel ring is turned near the edge of the table, forces are carried through both sides of the frame, limiting the uneven crossbeam deflection associated with a cantilevered head.

Heavy Rotary Table Capacity

DVT worktables carry at least 8,000 kg on the smaller models and up to at least 15,000 kg on the DVT3150. Large forged blanks remain supported through their base while the tool works around the circumference, reducing the need for complex horizontal lifting and shaft support.

30–55 kW Main Drive Options

Available motor ratings are 30, 45 and 55 kW across the DVT range. When roughing scale from large cast-steel wheel rims at low rotational speed, the selected drive provides the cutting-power reserve required for deeper passes before the finishing sequence.

Custom Double-column Vertical Lathe

A machine configuration is prepared from the drawing envelope, casting mass, lifting constraints and target machining cycle. The two-column frame, ram arrangement and workholding package are specified together, with tooling access and column clearance established before machining and assembly.

Customizable Items

• Gantry clearance and turning envelope

• Machining height

• Heavy-load worktable package

• Main spindle power package

• Left- and right-hand turret configuration

• Sliding box-way or hydrostatic guideways

• CNC controller and hydraulic equipment

• Chip guarding and enclosure

Technical Parameters

Parameter	DVT1600	DVT2000	DVT2500	DVT3150
Max. Machining Diameter (mm)	1600	2000	2500	3150
Max. Machining Height (mm)	1000 ~ 1600	1000 ~ 1600	1000 ~ 1600	1000 ~ 1600
Worktable Load Capacity (kg)	≥8000	≥8000 (Heavy 15000)	≥12000	≥15000
X-axis Single-side Stroke (mm)	≥1100	≥1100	≥1100	≥1100
Main Motor Power (kW)	30 / 45	30 / 45 / 55	45 / 55	55
Turret Type	Left & Right, 6~12 stations each	Left & Right, 6~12 stations each	Left & Right, 6~12 stations each	Left & Right, 6~12 stations each
Guideway Type	Heavy Box-way (Hydrostatic optional)	Heavy Box-way (Hydrostatic optional)	Heavy Box-way (Hydrostatic optional)	Heavy Box-way (Hydrostatic optional)

Quality Control

Column seating surfaces, crossbeam level and ram squareness are checked during mechanical assembly. The inspection process follows the actual tool path across the wide table, including checks for movement consistency at both ends of the traverse.

A representative large-diameter test cut is used to check roundness, face geometry and axis behavior under cutting load. Production operations include self- and peer inspection, followed by complete pre-packing inspection; third-party acceptance inspection is supported.