CNC Internal Whirling Machine

XKS100×6000 CNC Internal Whirling Machine

The XKS100×6000 CNC Internal Whirling Machine is a high-precision piece of equipment specially designed for machining extra-long trapezoidal lead screws. Breaking through the length limitations of traditional lathes, it is capable of processing trapezoidal lead screws with a diameter ranging from 20 mm to 100 mm and a maximum length of 6000 mm.
The machine adopts an integral high-strength bed (featuring high rigidity), 55° dovetail guide rails (ensuring precise positioning), and worm gear pairs with variable tooth thickness (allowing adjustable backlash). Combined with the GSK numerical control system and an automated chip removal machine, it achieves a threefold increase in processing efficiency.
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Equipment Features

  1. Breaking the 2-meter limit of traditional lathes, it enables the machining of 6-meter extra-long trapezoidal lead screws.
  2. The whirling milling process triples the efficiency and shortens the order delivery cycle by 50%.
  3. The integral high-strength bed combined with hydraulic V-shaped fixtures resolves the deformation issue of long workpieces.
  4. The automated chip removal and forced cooling system reduces maintenance costs by 20%.
  5. The GSK numerical control system paired with precision ball screws ensures a positioning accuracy of ±0.02 mm.

Workpiece literacy

Application: As a core linear drive component of automation equipment, trapezoidal lead screws are widely used in industrial robots, automatic feeders, palletizing robots, dispensing machines and other scenarios, where they are responsible for achieving precise linear motion.
Materials: Common materials include 45# steel, 304 stainless steel, and alloy structural steel (e.g., 40Cr). These materials must have high hardness, wear resistance and deformation resistance.
Geometric Characteristics: It features a large aspect ratio (maximum length of 6 meters, diameter ranging from 20 mm to 100 mm), trapezoidal tooth profile (angle of 30°/45°) and high precision requirement (pitch tolerance ≤ 0.05 mm).
Common Risks: Machining with traditional lathes is prone to deformation, length limitations and insufficient tooth profile precision, which leads to equipment operation jamming and shortened service life.

Core pain points

  • Length Limitation: The maximum machining length of traditional lathes is only 3 meters, which cannot meet the demand for 6-meter extra-long lead screws. Customers are forced to adopt split machining (resulting in increased assembly errors).
  • Low Efficiency: The traditional turning process takes 1 hour per meter of machining, requiring 6 hours for a 6-meter part, with the order delay rate reaching 30%.
  • Deformation and Scrap: Without effective fixation during the machining of long workpieces, the deformation rate is as high as 15%, leading to increased scrap costs.
  • Tedious Maintenance: Manual chip removal and natural cooling cause high equipment failure rates, shortening the maintenance interval to only 1 month.

Key points of each link

  • Blank Selection: High-quality alloy bar stock (e.g., 45# steel) is adopted and subjected to quenching and tempering treatment to improve hardness (HB220–250) and reduce machining deformation.
  • Rough Machining
    • Equipment: XKS100×6000 integral bed (high rigidity) + hydraulic V-shaped fixtures (both-end clamping).
    • Parameters: Whirling head speed: 1500 rpm; feed rate: 80 mm/min; cutting depth: 1 mm.
    • Risk Control: The 55° dovetail guide rails (crawl-free) and precision ball screws ensure feed stability and reduce vibration-induced deformation.
  • Whirling Milling
    • Equipment: Worm gear pairs with variable tooth thickness (adjustable backlash) + GSK numerical control system.
    • Parameters: Rotation speed: 2000 rpm; feed rate: 40 mm/min; tooth profile accuracy controlled within IT7 grade.

Revenue data

Processing length: maximum 6000mm (traditional 2000mm);
Efficiency: 3 times improvement (processing time for 6 meters reduced from 3h to 1h);
Positioning accuracy: X-axis ±0.02mm, Z-axis ±0.025mm;
Deformation rate: ≤2% (traditional 15%);
Maintenance cycle: extended to 3 months (traditional 1 month).

Case/Application Scenario

Case Study: A leading automation robot manufacturer (with an annual output of 5,000 units) previously processed 2-meter lead screws using traditional lathes. To produce 6-meter lead screws, they had to split the machining into 3 segments and then assemble them, resulting in an assembly error of over 0.1 mm and an order delay rate of 30%. After introducing the XKS100×6000 CNC Internal Whirling Machine:
  • 6-meter lead screws are machined in one piece directly, reducing the assembly error to ±0.05 mm.
  • Machining efficiency is tripled, and the order delivery cycle is shortened by 50%.
  • The scrap rate is reduced from 15% to 2%, generating an annual cost saving of 1.2 million yuan.
Applicable Scenarios: Automation equipment manufacturing, industrial robots, automatic feeders, palletizing robots, dispensing machines, etc.

Device parameters and configurations

Serial No.ItemContentUnit
1Machine Tool PurposeProcessing Trapezoidal Lead Screws/
2Maximum Processing Length6000mm
3Lead4-12mm
3Processing Diameter Range20-100mm
4Servo Control Axes3 Axes (X/Z/C)/
5C-axis Motor Torque38Nm
6X-axis Positioning Accuracy±0.02mm
7Z-axis Positioning Accuracy±0.025mm
8Chip Removal Machine TypeChain Plate Type + High-pressure Water Pump/
9Control SystemGuangshu/
10Power Supply Voltage380V
11Machine Tool Weight≈10ton
12Protection TypeFull Protection (Both Ends/Rear Side) + Half Protection (Operation Side) with Sliding Door/

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