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2025

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CK5123D VTL with Full Guarding: 2300mm Cutting × 40000N·m Torque for Heavy-Duty Flanges & Valves


Overview
The CK5123D single-column vertical lathe redefines heavy-part turning with 2300mm cutting diameter and 8000kg load capacity. Featuring full sheet metal guarding and Siemens/FANUC/GSK CNC compatibility, its dual-configuration drive system (4-step gearbox + AC variable motor or 2-step + DC stepless motor) delivers 40000N·m torque at 3.2-100 RPM—crushing S355JR steel flanges at 25mm/min feeds. With HRC40 hardened guides and automatic timed lubrication, this 30kW powerhouse maintains IT7 tolerances for 15,000+ hours in gritty environments.

Core Applications

  1. Wind Tower Mega-Flange Turning
    Machine 2.3m S355JR flanges with ±0.1mm flatness. The 1400mm horizontal travel and CSCS function maintain 120m/min surface speed on curved surfaces—Danish projects prove 38% cost reduction vs. unprotected VTLs .

  2. Nuclear Valve Body Refurbishment
    Face-cut Inconel valve seats at 63 RPM. Dual-gearbox DC motor option provides 43000N·m low-speed torque, achieving Ra 1.6μm finishes under 25kN cutting forces .

  3. Hydraulic Press Cylinder Machining
    Turn 1800mm-diameter 42CrMo4 cylinders in one chucking. 1050mm crossbeam travel + 800mm vertical tool movement handle deep-bore finishing without realignment .

Engineering Superiority

  • Rigidity Redefined: Proprietary castings (18T weight) with stress-relief annealing absorb 12kN vibrations. Grade 6 spiral bevel gears reduce noise by 15dB .

  • Zero-Downtime Guarding: Full sheet metal covers prevent 92% of swarf ingress on guideways. Centralized lubrication delivers 0.01ml/min oil to critical joints .

  • Smart Flexibility: Manual override on CNC models allows threading during power outages—critical for foundry emergencies .

Technical Edge vs. CK Series

Parameter CK5120 CK5123D (YOU) CK5126
Cutting Diameter 2000mm 2300mm 2600mm
Max Torque 32000N·m 40000N·m 43000N·m
Horizontal Travel 1200mm 1400mm 1500mm
Guarding Partial Full Sheet Partial

ROI Case Study
At $58,000 (FOB China), CK5123D pays back in 8 months:

Metric Unprotected VTL CK5123D Improvement
Guideway Rescrape 18 months 60+ months ↓70% cost
Scrap Rate 6.5% 1.8% ↓72%
Energy Use 44 kWh/day 32 kWh/day ↓27%

Pro Tip
Engage CSCS mode when tapering flanges—maintains 120m/min surface speed automatically. Weekly Vactra #2 application on exposed ways prevents corrosion in coastal plants.

Need Heavy-Part Precision That Lasts?
Request your free machining audit with torque/RPM calculations. Click to download CK5123D cutting parameters for flanges/valves/cylinders. Competitive pricing with 10-year guarding warranty—industrial durability engineered in.