CNC Flat Bed Lathe Supplier - BL-SK40S 50S 66Q

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Product Code:
BL-SK40S 50S 66Q
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Supply Ability:
50 unit per month
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CNC Flat Bed Lathe SK PRECISE Series
■390mm guideway width  ■Spindle bore: 77/82/105mm  ■CHINA top quality



■ Adopt China best high strength compound resin sand cast iron

■ Two times aging treatment,has good vibration absorption and rigidity

■ Guideway hardened by ultrasonic frequency and precise ground, good precision keeping

■ Guideway stick PTFE,remove creeping,obviously increase precision, wearability and anti-impact force

■ Spindle use high precision bearing

■ Adopt manual 3 class integral gear box type spindle,high rigidity,suitable for heavy turning



Item Specification Unit BL-SK40S BL-SK50S BL-SK66Q
Capacity Guideway width mm 390
Max. swing dia. over bed mm Φ400 Φ500 Φ660
Max. swing dia. over slide mm Φ200 Φ280 Φ440
Max. turning dia.(vertical 4T/horizontal 6T tool turret) mm Φ400/350 Φ500/350 Φ550/350
Max. workpiece length(vertical 4T/horizontal 6 T tool turret) mm 710/620; 960/870; 1460/1370; 1960/1870; 2960/2870(for SK40S/50S)
Max turning length  (vertical 4T/horizontal 6 T tool turret)             mm 570/500; 820/750; 1320/1250; 1820/1750; 2820/2750(for SK40S/50S)
Max. workpiece weight kg 700(10’’ manual chuck);550(8’’ hydraulic chuck);700(10’’ hydraulic chuck);
Spindle Spindle bore mm Φ77(opt.:82,105)
Spindle head type / ISO702/ⅠA2-8(opt.:D8)
Spindle taper hole / Metric 1:20
Spindle speed rpm 3 class gears  H:162~1620  M:66~660  L:21~210   
Spindle motor kw 7.5(servo)
Spindle max. output torque Nm 800
Chuck size / 10''
X/Z axes X axes travel (vertical 4T/horizontal 6T tool turret) mm 275/235
Z axes travel mm 600/850/1350/1850/2850(for SK40S/50S)
X/Z axes rapid speed m/min 6/8
X axes ball screw O.D./pitch mm Φ25/5
Z axes ball screw O.D./pitch mm Φ40/6(750,1000,1500mm);Φ50/6(2000mm);Φ63/8(3000mm)
Tool post  Tool turret type / Vertical 4/Horizontal 6 station
Tool shank size mm 25×25
Tailstock Tailstock quill dia. mm Φ75(hydraulic tailstock: Φ80)
Tailstock quill travel mm 150(hydraulic tailstock: 130)
Tailstock quill taper / MT5#
Accuracy X/Z axes positioning accuracy mm 0.026/0.032(750mm),0.036(1000mm), 0.040(1500,2000,3000mm)
X/Z axes repeatability positioning accuracy mm 0.007/0.009(750mm), 0.011(1000mm),0.014(1500/2000/3000mm)
Turning workpiece roundness mm 0.004
Others N.W. kg 2050/2100/2150/2200/3500 2150/2200/2250/2300
Overall size(L×W×H) mm 2450/2700/3200/3700/4700×1500×1700 2450/2700/3200/3700×1500×1700

* The marked accuracy just follows CHINA national standard GB/T 25659.1, actual accuracy is much higher


Main parts list:

Item Brand
Spindle bearing CHINA top-CSC/ZWZ
Ball screw bearing CHINA top-CSC
Ball screw CHINA top
Lubrication pump JAPAN-LUBE


Standard configuration:

  • FANUC 0i TFCNC Controller
  • Manual chuck
  • 4 station tool post
  • Manual tailstock


Optional configuration:

  • SIEMENS 808D/GSK980TDi
  • Hydraulic chuck  
  • 6 station tool turret
  • Hydraulic tailstock    
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