Technical Description of the SPEED 21 COMEV brand

The SPEED 21 lathe COMEV brand is a versatile and robust machine tool, designed for turning work on medium-sized pieces. Built in 2004, this lathe features a solid construction that gives it stability and precision. With a dead weight of 2200 kg, the SPEED 21 lathe is ideal for operations requiring accurate and consistent machining.

Technical Characteristics

• Own weight : 2200 kg
• Processing Diameter (Mac Diameter) : 210 mm
• Maximum Processing Length : 950 mm
• Bar passage : 62 mm
• Engine Power : 10 kW

What is a SPEED 21 Lathe

The lathe is a machine tool used mainly for turning operations, that is, for shaping materials by rotating the piece being processed while a cutting tool removes the material. The SPEED 21 is a versatile model suitable for several applications, including cylindrical, tapered, threading, drilling, and chamfering.

How to use it

The SPEED 21 lathe is used by fixing a piece of material (usually a metal cylinder) between the chuck and the tailstock. The workpiece is then rotated at high speed, while the cutting tool, mounted on a tool holder, is moved against the workpiece to remove material and create the desired shape. The 62 mm bar passage allows you to work on pieces of significant dimensions, while the 10 kW power offers the strength necessary to work resistant materials.

Materials Used

The SPEED 21 lathe is designed to process a wide range of materials, including:

• Steels : Structural, alloy and stainless steel, for resistant mechanical parts.
• Aluminum alloys : For components requiring lightness and corrosion resistance.
• Cast iron : Used for components that require high dimensional stability.
• Plastic materials : For prototypes and specific parts that require electrical insulation or chemical resistance.

Main Industrial Sectors

The SPEED 21 lathe is used in various industrial sectors, including:

• General mechanical industry : Production of mechanical components such as shafts, bushings and flanges.
• Automotive industry : Turning of parts for engines, transmissions and suspension systems.
• Aerospace industry : Production of structural components and engines.
• Energy industry : Production of parts for turbines and power transmission systems.

Calculations and Formulas to Optimize Use

SPEED 21 lathe optimization involves various calculations, including:

• Cutting speed ( VcV_c $V$ c ​) : Vc=π⋅D⋅nV_c = \pi \cdot D \cdot n $V$ c ​= $\pi$ $\cdot$ $D$ $\cdot$ $n$ , where DD $D$ is the diameter of the workpiece and nn $n$ is the rotation speed in revolutions per minute (RPM). This formula helps determine the optimal speed to avoid premature tool wear or workpiece damage.
• Feed per revolution ( ff $f$ ) : Indicates how much the tool moves in the longitudinal direction for each revolution of the piece.
• Depth of cut ( dd $d$ ) : Determines the amount of material removed per pass, influencing both tool life and the quality of the machined surface.

Types of Similar Lathes

The SPEED 21 lathe is a conventional lathe, but there are several other types of lathes, including:

• CNC Lathe : Numerically controlled for complex, high-precision operations.
• Parallel lathe : Similar to the SPEED 21, but available in various models with different capacities.
• Vertical lathe : Used for large, heavy weight workpieces, mounted vertically.

Alternatives to the SPEED 21 Lathe

• CNC turning centers : For high precision and geometric complexity production.
• Milling machines : For processes that require both turning and milling.
• Multipurpose lathe : Combines turning and drilling, useful for operations that require multiple machining operations without moving the piece.

Why It Is Worth Buying a Used SPEED 21 Lathe

Buying a used SPEED 21 can be advantageous for several reasons:

• Robustness and Longevity : COMEV lathes, like the SPEED 21 model, are built to last, with a rigid structure that maintains precision over time, even after years of use.
• Reduced Cost : Buying a used lathe represents a significant economic saving compared to a new one, without compromising the quality of the workmanship.
• Reliability : COMEV machines are known for their reliability and precision, so a well-maintained used model can still offer high performance.
• Availability and Accessibility : A used lathe is often immediately available, reducing waiting times compared to purchasing a new model, which may have longer lead times.

In conclusion, the COMEV SPEED 21 lathe is an for a robust and versatile machine for turning work on medium-sized pieces. Purchasing a used model allows you to obtain high quality equipment at a lower cost, while maintaining the ability to carry out precise and efficient work.