Tongtai THL 620 cnc lathe

Tongtai THL-620 series CNC Lathe 02

With the optimal structure design, the one-piece machine base is made of high quality cast iron. The box ways are fine machined, well heat treated and finished by grinding with strict inspection. This solid structure builds the best base for high dynamic rigidity and machining performance. Ball screws are driven directly by high output servo motors with couplings to avoid transmission errors. The machining efficiency is raised by the outstanding rapid traverse 20 m/min. The maximum spindle torque reaches 1477 Nm by using 37 kW spindle motor and dual-speed gearbox, and it provides more than enough for the maximum turning diameter of 0620 mm. In addition to the standard 0160 mm headstock, the enhanced 0180 mm headstock is also available with a 37/45 kW spindle motor to expand the applications. The standard hydraulic turret is installed with 320 mm big couplings inside for high precision positioning, and it provides the necessary rigidity for heavy-duty cutting. The C axis and the strong power turret with advanced tooling system are also available to give compound turning and milling functions. A rotary encoder is used to feed back the position for excellent positioning accuracy and repeatability. The live tools are driven by an 11/15 kW spindle motor, allowing high output for milling, drilling, and tapping. The stroke of the Z-axis is standard as 1200 mm and optional as 2000/3000 mm according to the customer's demand. The steady rest is possible to be installed for long part machining. The powerful built-in quill type tailstock is programmable and clamped by a hydraulic cylinder for high positioning rigidity.

THL-620 series CNC Lathe 03 Machining ability

Turning material: S45C Material removal rate: 33 cm3/min Material removal rate: 629 cm3/min Diameter: 050 mm Cutting depth: 13 mm Cutting depth: 13 mm Spindle speed: 191 rpm Spindle speed: 192 rpm Spindle speed: 201 rpm Feedrate: mm/rev Feedrate: mm/rev Feedrate: mm/rev Cutting speed: 30 m/min Cutting speed: 105 m/min Cutting speed: 120 m/min Milling Material: S45C Material removal rate: 224 cm3/min Material removal rate: 80 cm3/min Tool: Drill 032 mm 2 teeth Spindle speed: 249 rpm Cutting feedrate: 320 mm/min Feedrate: mm/rev Cutting width: 25 mm Cutting speed: 25 m/min Cutting depth: 28 mm Material removal rate: 224 cm3/min Tool: End mill 025 mm Material removal rate: 80 cm3/min Tool: Drill 032 mm Spindle speed: 800 rpm 2 teeth Feedrate: mm/rev Cutting width: 25 mm Cutting depth: 28 mm Cutting speed: 25 m/min

THL-620LM testing data with gearbox type spindle THL-620 series CNC Lathe 06

Main Structure High rigidity box-way structure The high precision scraping is carried out by skilled engineers to obtain the perfect lubrication with correct oil film. The machine accuracy and the lifetime of slides are both raised accordingly.

The 45-degree one-piece slant bed gives the best support for heavy-duty cutting and stable machining accuracy. It's also an excellent design for easy chip flow.

High precision feeding units Both X and Z axes are designed with box-way structure. With proper heat treatment