Citizen L20 Mobile Headstock Lathe

General Features:

• Model: Citizen L20
• Year of Manufacture: 1998
• Condition: Used, in good condition
• CNC control: Mitsubishi

Technical data:

• Number of Axes: 5
  • Controlled Axes: Typically include X and Z axes for the main spindle, X and Z axes for the counter spindle, and a C axis for rotation.
• Number of Tools: 7
• Number of Spindles: 2
• Maximum Main Spindle Bar Diameter: 20 mm
• Maximum Counter Spindle Bar Diameter: 20 mm
• Maximum turning length: 200 mm
• Main Spindle Speed: 8,000 rpm
• Main Spindle Power: 3.7 kW
• Counter spindle speed: 8,000 rpm

Main Components:

• Main spindle: Allows high precision machining with a speed of up to 8,000 rpm and a power of 3.7 kW.
• Sub-spindle: Used for secondary operations, with the same speed as the main spindle and ability to machine parts up to 20 mm in diameter.
• Controlled Axes: Five axes for complex and multidimensional machining.
• Driven Tools: Four driven tools to increase versatility and machining efficiency.

Measurements and Dimensions:

• Dimensions: ~1,100 x 1,085 x 1,700 mm
• Weight: 2,000 kg

Mechanical Characteristics:

• Spindle rotation speed: 8,000 rpm, suitable for high precision machining.
• Spindle Power: 3.7 kW, sufficient for a wide range of materials.
• Bar Loader: Mini Boss 325, for automatic loading of bars, improving efficiency and productivity.
• Accessories: Cooling pump to maintain the working temperature and a belt for transporting the machined pieces.

Formulas for Optimal Use Parameters:

• Cutting Speed ​​(Vc): Vc = (π × D × N) / 1000
  • Vc = Cutting speed in m/min
  • D = Workpiece diameter in mm
  • N = Spindle rotation speed in rpm
• Feeds: They depend on the type of processing and the material of the piece.

Workable Materials:

• Metals: Steel, aluminium, brass, copper
• Non-metallic materials: Plastic, composite materials

Maintenance:

• Lubrication: Check and maintain the lubrication system for the spindles and axles.
• Inspection and Alignment: Regularly check the alignment of the axes and the accuracy of the spindles.
• Cleaning: Remove chips and dust regularly to keep the machine in good condition.
• Replacement of Worn Components: Monitor and replace bearings and other worn parts.

Evaluation of Used:

• General Condition: Check the wear of the components and test all functions.
• Documentation: Request the maintenance history and interventions carried out.
• Functional Test: Carry out tests to ensure the accuracy and functionality of the lathe.

Sectors of Use:

• Manufacturing Industry: Processing of small parts with high precision.
• Electronics Industry: Production of electronic components.
• Aerospace Industry: Machining of precision parts for critical applications.

Advantages of Buying Used:

• Lower Cost: Generally cheaper than a new lathe.
• Less Depreciation: Used lathes depreciate less than new ones.
• Reliability: With good maintenance, a used lathe can have a long remaining useful life.