Manual lathe D series

verticaldouble-columnhigh-rigidity

Product overview:
Double-column vertical lathe series D designed for heavy-duty large-diameter turning and machining of large workpieces. Machine casting uses HT250–HT300 gray cast iron with stress relief; spindle and ram in QT600 ductile cast iron. Suitable for roughing, ageing process and finish machining workflows.

Main technical data:

• Machine material: HT250–HT300 gray cast iron, aged and stress-relieved
• Material hardness: > HB180 (process: rough machining → secondary aging → finish machining)
• Spindle & ram: QT600 ductile (nodular) cast iron
• Ball screw: domestic brand (NJGR / Hanjiang), ф63 mm
• Max turning diameter: φ2500 up to φ6300 depending on model
• Worktable diameter: φ2250 up to φ5700 depending on model
• Main motor power: typically 55 kW (AC), up to 90 kW on larger models
• Worktable speed range: approx. 0.32–63 r/min (model dependent)
• Feed range (tool holders): 1–500 mm/min; rapid traverse up to 3000 mm/min
• Crossrail travel: 1250–3500 mm (model dependent); ram stroke up to 2000 mm
• Turning tool shank: 50×50 mm (up to 60×60 mm on largest model)
• Max cutting forces: up to 63 kN (model dependent)
• Options: protective devices, coolant system, chip removal system

Models & capacities:

• Available models: C(X)5225DxH/W, C(X)5231DxH/W, C(X)5235DxH/W, C(X)5240DxH/W, C5250DxH/W, C5263D xH/W
• Workpiece height variants: H = 16/20/25 (some models), up to 40 mm variant on largest model
• Max workpiece weight ranges: 12 t up to 80 t depending on model
• Worktable speed and torque vary per model to match machining loads

Applications:

• Turning and machining of large rings, flanges, gear blanks and housings
• Heavy industry: power generation, wind, shipbuilding, heavy equipment
• Precision finishing after ageing processes where dimensional stability is critical

Options & accessories:

• Protective devices and guarding
• Coolant and filtration systems
• Chip conveyors and removal systems
• Custom tool holders and PTFE soft strips on slideways for reduced friction