Detailed Technical Data Sheet: CNC Lathe Graziano Mod. GT 700

Introduction

The Graziano Mod. GT 700 CNC lathe is an advanced precision machine tool designed to guarantee high performance in the processing of large pieces. This lathe, equipped with the C axis and motorized, is an example of cutting-edge technology capable of meeting the needs of modern workshops. We analyze in detail the technical specifications, mechanical characteristics and methods of use of this used model.

Components and Construction

Brand and Model: Graziano CNC lathe Mod. GT 700

Technical Specifications:

• Max Turning Diameter: 400 mm
• Max Turning Length: 2000 mm
• Max turning diameter from bar: 87 mm
• Spindle Nose: ASA 11
• Main Spindle Rotation Speed: 2000 rpm
• Main Spindle Motor: 35/55 kW
• Overall Dimensions: 6200 mm × 2500 mm × 2200 mm (H)
• Weight: Approximately 11,000 kg

Accessories Included:

• CNC Rexroth Indramat mod. System 200: Advanced numerical control that manages all turning operations, allowing precise and complex programming.
• Autoblock Hydraulic Chuck Diam. 315 with 3 Jaws: Guarantees safe and precise clamping of the workpiece.
• Sauter 12-position hydraulic turret VDI 50 motorized: Allows rapid tool change and greater versatility in machining.
• Hydraulic tailstock in CM 5 cycle: Provides additional support to the piece during processing.
• Autoblock Hydraulic Steady Rest Mod. SLU 3.1 (20-165): Supports long and thin workpieces to avoid vibrations and improve precision.
• Chip Evacuator: Keeps the work area clean by removing chips produced during processing.
• ER 40 Axial and ER 40 Radial Motorized Chuck: Accessories for mounting tools and additional accessories.
• Tool holders + Various bar holders: Allow you to manage a wide range of tools for different turning operations.

Mechanical Characteristics

The Graziano Mod. GT 700 CNC lathe is characterized by:

• Sturdy Construction: The machine is built with high-quality materials that ensure durability and stability.
• Powerful Motor: The 35/55 kW main motor offers enough power to process durable and large materials.
• Variable Speed: With a rotation speed of up to 2000 rpm, the machine can adapt to different processing needs.
• Motorized Turret: The 12-position hydraulic turret allows for quick tool changes, improving machining efficiency.

Usage Procedure

1. Preparation of the Workpiece: Mount the workpiece on the hydraulic chuck, making sure it is well fixed and centred.
2. CNC Programming: Use the Rexroth Indramat CNC to program the machining path. Enter the required parameters such as rotation speed and feeds.
3. Tool Selection and Assembly: Select and assemble the necessary tools on the motorized turret.
4. Starting Processing: Start the turning process and monitor operation to ensure the part is machined to the desired specifications.
5. Inspection and Maintenance: Check the quality of the finished piece and make any necessary adjustments.

Matching accessories

• Specialized Tools: For specific operations such as milling or boring.
• Measuring Devices: To guarantee processing precision and compliance with tolerances.
• Support Equipment: Such as centering devices and additional supports for long workpieces.

Formulas for Optimal Use

• Cutting Speed ​​(Vc): Vc = (π × D × N) / 1000, where D is the workpiece diameter and N is the speed in revolutions per minute (rpm).
• Feed (F): F = (Vc × Z) / 1000, where Z is the number of teeth on the tool.
• Depth of Cut: The optimal depth of cut depends on the material and motor power, follow the manufacturer's guidelines to optimize performance.

Workable Materials

The Graziano Mod. GT 700 CNC lathe is suitable for working a variety of materials:

• Steel: For robust and resistant components.
• Aluminum: Ideal for lightweight, high-precision parts.
• Bronze and Brass: Suitable for applications requiring good workability and wear resistance.

Maintenance

• Regular Lubrication: Make sure all moving parts are well lubricated to reduce wear and ensure smooth operation.
• Tolerance Check: Periodically check the tolerances and precision of the machine.
• Cleaning: Remove chips and dust to prevent damage and maintain optimal performance.

Evaluation of used cars

To evaluate a used Graziano Mod. GT 700 CNC lathe, consider:

• General Condition: Inspect the machine for signs of wear or damage.
• Functionality: Test all functions and make sure the CNC and accessories work properly.
• Documentation: Check documentation and maintenance manuals for completeness.

Sectors of Use

The Graziano Mod. GT 700 CNC lathe finds application in:

• Mechanical Workshops: For the production of precision and tailor-made components.
• Aerospace Industry: For machining complex, high-precision parts.
• Automotive sector: For the production of components for vehicles and engines.

Advantages of Buying Used

• Economic Savings: Purchasing a used lathe like the Graziano Mod. GT 700 allows significant savings compared to purchasing a new one.
• Reliability: If well maintained, a used lathe can offer performance comparable to that of a new model.
• Value: A well-maintained used lathe can maintain good value and provide a significant financial return.

In conclusion, the Graziano Mod. GT 700 CNC lathe is an excellent choice for those looking for a high-precision and versatile machine tool. With proper maintenance and careful evaluation, a used example of this model can continue to provide excellent performance and represent a cost-effective and operational option.