Grazioli Parallel Lathe Model Dania 250

Introduction

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

Visual Appearance and Construction

Visually, the Grazioli Dania 250 appears to be a lathe of considerable size, with a cast iron construction that provides stability and reduces vibration during turning. The design is characterized by simple, functional lines, typical of high-quality precision machines. The machine has a robust and well-finished appearance, with a wide bed and a prominent spindle.

Main Components:

• Workbench : Made of cast iron, with a width of 360 mm, it offers a stable surface for mounting the workpiece and accessories.
• Chuck : Equipped with a 78mm 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 workpiece, has a turning capacity of up to 318 mm in diameter.
• Turrets : Unspecified, but typically equipped with mechanisms for mounting tools and supports.

Technical Data

• Make and Model : Grazioli Dania 250
• Height of Tips : 250 mm
• Distance between 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
• Machine Overall Dimensions : L 3000 mm x W 1300 mm x H 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 : The variable speed range allows you to adapt the lathe to different applications and materials.
• Turning Capacity : With a maximum turning diameter on the bed of 500 mm and on the carriage of 318 mm, the lathe is suitable for machining medium to large sized workpieces.

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 workpiece into the chuck and clamp it firmly.
   • Adjustment : Set the turning coordinates and spindle speed via the controls.

3. Execution of the Process:

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

4. Conclusion:

   • Removing the Workpiece : Remove the workpiece and check the quality of the workmanship.
   • Cleaning : Clean the machine and work area to maintain optimum condition.

Matching accessories

• Vice : To hold the piece in a stable position during machining.
• Multifunction Turret : To mount different tools and optimize turning operations.
• Cooling Systems : To manage heat and improve the finish of the part.

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

Evaluation of Good Used

• General Condition : Check for structural integrity and any damage or signs of excessive wear.
• Functionality : Test all machine functions to ensure they are operational and accurate.
• Documentation : Check for 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 finishing.
• General Machining : Suitable for turning work on various materials.

Advantages of Buying Used

• Affordable Price : Buying a used lathe is a more economical option than buying 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 Dania 250 Parallel Lathe is a used machine that continues to deliver excellent performance thanks to its solid construction and advanced technical features. It's a reliable choice for those seeking a quality lathe at a competitive price.