We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate within our success for High definition La3900-700 Boring Bar Machining Lathe Electric Spindle High Speed CNC Lathe Machine, We’ve been trying to get for intensive cooperation with truthful customers, accomplishing a new induce of glory with customers and strategic partners.
We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate within our success for China High Precision Machine and Metal Lathe, Due to good quality and reasonable prices, our products and solutions have been exported to more than 10 countries and regions. We’ve been looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.
This machine is a multifunctional lathe developed by our company on the basis of a large flat-bed CNC horizontal lathe with boring function. The bed is optimized, the overall weight is increased, the carriage is lengthened, widened, and thickened, and a dedicated boring tool holder is supplied. It can cut the inner holes of parts, and the processing efficiency, accuracy, and rigidity are better than ordinary CNC lathes. Adopting a semi enclosed protective structure and equipped with Siemens systems. The main transmission of turning is automatic four speed continuously variable speed, with two linked control axes. The X and Z axes use ball screw pairs, AC servo motors, and precision reducers to achieve servo movement, semi closed loop control, and have good positioning accuracy and repeated positioning accuracy.
Product application areas:
1. Medium and large hydraulic cylinders
2. Full process machining of wind turbine spindles
3. The Drum in the Paper Industry
4. Wire rope drum of crane
5. Cathode rod drum
6. Centrifuge drum
7. Efficient turning of precious metals such as high-temperature alloys, titanium alloys, steel ingots, rollers, and laser cladding materials
8. Processing of thin-walled parts such as outer circle turning, inner hole boring, end face drilling, tapping, shaft surface drilling, milling, etc
Main technical parameter
Guide way width |
1100mm |
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Max. swing diameter over bed |
1320/1670/2070 |
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Max. workpiece length |
3000/4000/5000/6000/7000/8000/9000/10000/20000mm, the lathe over 10m is rack transmission |
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Workpiece weight between centers |
15T(pay attention to the speed limit for heavy part) |
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Max. swing diameter over carriage |
Φ900mm/1200mm/1600mm |
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spindle |
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Front bearing of spindle |
Φ200/220mm(optional) |
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Spindle speed |
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4 gears, stepless |
I gear |
II gear |
III gear |
IV gear |
Speed range |
5~40 r/min |
20~80r/min |
40~160r/min |
80~315 r/min |
Gear shift |
Hydraulic gear shift |
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Spindle bore diameter |
Φ130mm |
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Front end taper of spindle bore |
Metric 140# |
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Type of spindle end |
A2-15 |
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chuck |
Φ1000mm |
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Chuck type |
Manual four jaw chuck |
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Main motor |
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Main motor power |
30kW servo |
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Transmission type |
C type belt |
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Feed |
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X axis travel |
750/750/850/1050mm |
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Z axis travel(from chuck end to tailstock) |
2750/3750/4750/5750/6750/7750/8750/19750mm |
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X axis rapid travel speed |
4m/min |
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z axis rapid travel speed |
4m/min |
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Tool post |
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Vertical 4 position |
Electrical tool post |
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Type of tool post |
LD4B-C6100 |
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opposite side of tool post |
300×300mm, optional(380×380) |
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Tool shank section size |
45×45mm |
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Tailstock |
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Type of tailstock |
Manual tailstock |
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Mandrel diameter |
φ280mm |
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Mandrel travel |
300mm |
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Taper of mandrel |
Metric 80# |
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Moving type of tailstock |
Hanging/Motorized |
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Machining accuracy |
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Roundness of fine turning outer circle |
0.01mm |
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Consistency of precision machining of outer circles(on 300mm length) |
0.03mm |
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Flatness for fine turning flat(on diameter 300mm) |
0.025 concave |
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Roughness for find turning outer circle |
1.6μm |
processing video please visit: https://youtu.be/Vj2U_kIEONQWe rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate within our success for High definition La3900-700 Boring Bar Machining Lathe Electric Spindle High Speed CNC Lathe Machine, We’ve been trying to get for intensive cooperation with truthful customers, accomplishing a new induce of glory with customers and strategic partners.
High definition China High Precision Machine and Metal Lathe, Due to good quality and reasonable prices, our products and solutions have been exported to more than 10 countries and regions. We’ve been looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.