Grazioli Parallel Lathe Model Dania 250

Introduction

The Grazioli Parallel Lathe Model Dania 250 is a robust and versatile machine, designed for turning applications in mechanical workshops and precision laboratories. This lathe, although it is a used model, offers excellent performance thanks to its solid construction and its advanced technical features. With its classic design and detailed technical specifications, the Grazioli Dania 250 represents an ideal choice for those seeking reliability and precision.

Visual Appearance and Construction

Visually, the Grazioli Dania 250 presents itself as a lathe of considerable size, with a cast iron construction that gives stability and reduces vibrations during the turning operation. The design is characterized by simple and functional lines, typical of high-quality precision machines. The machine has a sturdy, well-finished appearance, with a wide bed and a prominent spindle.

Main Components:

• Bench : Made of cast iron, with a width of 360 mm, it offers a stable surface for mounting the workpiece and accessories.
• Spindle : Equipped with a 78 mm bore and a variable speed between 12 and 1400 rpm, it is designed to offer precise and powerful rotation.
• Carriage : The carriage, which allows longitudinal movement of the piece, has a turning capacity of up to 318 mm in diameter.
• Turrets : Unspecified, but typically equipped with mechanisms for mounting tools and holders.

Technical Data

• Make and Model : Grazioli Dania 250
• Tip height : 250 mm
• Distance between the Tips : 2000 mm
• Spindle hole : 78 mm
• Spindle speed : 12 - 1400 rpm
• Maximum turning diameter on the bench : 500 mm
• Turning Diameter on the Carriage : 318 mm
• Speed ​​Number: 24
• Bench Width : 360 mm
• Machinery overall dimensions : L 3000 mm xl 1300 mm xh 1200 mm
• Machine weight : 2500 kg

Mechanical Characteristics

The Grazioli Dania 250 offers a series of technical features that guarantee its versatility and reliability:

• Cast Iron Construction : Gives rigidity and stability to the machine, reducing vibrations and improving precision.
• Spindle Speed : Variable speed range allows you to adapt the lathe to different applications and materials.
• Turning Capacity : With a maximum turning diameter on the bench of 500 mm and on the carriage of 318 mm, the lathe is suitable for processing medium-large sized pieces.

Usage Procedure

1. Preparation:

   • Initial Inspection : Check that the machine has no signs of wear and that all components are well lubricated.
   • Tool Assembly : Attach the necessary tools and accessories to the turret or carriage.

2. Setting the Piece:

   • Positioning : Insert the piece into the chuck and fix it firmly.
   • Adjustment : Set the turning coordinates and spindle speed via the controls.

3. Execution of the Process:

   • Startup : Turn on the lathe and start the machining cycle.
   • Monitoring : Observe the turning process to ensure the part is machined to specifications.

4. Conclusion:

   • Removal of the Piece : Extract the machined piece and check the quality of the workmanship.
   • Cleaning : Clean the machine and work area to maintain optimal conditions.

Matching accessories

• Vice : To fix the piece stably during processing.
• Multifunction Turret : To mount different tools and optimize turning operations.
• Cooling Systems : To manage the heat and improve the finish of the piece.

Formulas for Optimal Use

• Cutting Speed ​​(Vc):

  $$V$$

  Where DD $D$ is the diameter of the piece and nn $n$ is the rotation speed in rpm.

• Progress per Minute (f):

  $$f$$

  Where VfV_f $V$ f ​is nn $n$ is the rotation speed.

• Cutting Depth (ap):

  $$a$$

Workable Materials

The Grazioli Dania 250 is designed to work:

• Metals : Steel, aluminum, brass, and alloys.
• Plastic Materials : Hard plastic and lightweight composites.

Maintenance

• Periodic Checks : Carry out regular inspections to check the wear and correct functioning of the components.
• Lubrication : Apply lubricants to moving parts and bearings according to manufacturer's recommendations.
• Cleaning : Remove chips and dust to keep the machine in good condition.

Evaluation of Good Used

• General Conditions : Check the structural integrity and the absence of damage or signs of excessive wear.
• Functionality : Test all machine functions to ensure they are operational and accurate.
• Documentation : Check the presence of maintenance documentation and technical specifications.

Sectors of Use

The Grazioli Dania 250 finds application in:

• Mechanical Workshops : For the processing of mechanical parts and components.
• Precision Industry : For applications requiring high precision and finish.
• General Machining : Suitable for turning work on different materials.

Advantages of Buying Used

• Advantageous Price : Purchasing a used lathe represents an economical solution compared to a new model.
• Reliability : Grazioli lathes are known for their durability and reliability, even when purchased used.
• Good Value for Money : They offer excellent performance at a lower cost, while maintaining good workmanship quality.

The Grazioli Parallel Lathe Model Dania 250 is a used machine that continues to offer excellent performance thanks to its solid construction and its advanced technical features. It is a reliable choice for those looking for a quality lathe at a competitive price.