Used Doosan Model 7-124 Compressor

General Overview

The Doosan Model 7-124 used compressor is a versatile and robust machine, built to offer high performance in industrial and construction applications. Featuring a Cummins QSB 4.5 130 engine with Stage IV emissions, this compressor stands out for its ability to operate at dual pressure, providing variable flow at different operating pressures. With 709 hours of operation and a 2016 build year, the Doosan 7-124 is a solid option for those looking for a reliable compressor on the used market.

Structure and Components

• Casing and Design : The machine is enclosed in a robust metal casing designed to withstand adverse environmental conditions and to protect internal components from damage and wear. The structure is designed to facilitate transport and positioning on the construction site.

• Cummins QSB 4.5 130 Engine : The Cummins 4-cylinder diesel engine is equipped with Stage IV emissions technology, which guarantees superior efficiency and reduced polluting emissions. This engine offers adequate power for compression needs and ensures smooth, long-lasting operation.

• Compressor : The 7-124 model features a screw compressor system, known for its reliability and ability to provide constant, uniform pressure. The compressor can be adjusted to operate at different pressures, increasing flexibility of use.

• Pressure Regulation System : The compressor offers two main settings:

  • Low Pressure : 425 cfm (12.3 m³/min) at 7 bar operating pressure, with a maximum of 8.6 bar.
  • High Pressure : 375 cfm (10.6 m³/min) at 10.3 bar working pressure, with a maximum of 12.3 bar.

Measurements and Specifications

• Flow rate and pressure:

  • Low Pressure Setting:
    • Flow rate: 425 cfm (12.3 m³/min)
    • Pressure: 7 bar
    • Maximum Pressure: 8.6 bar
  • High Pressure Setting:
    • Flow rate: 375 cfm (10.6 m³/min)
    • Pressure: 10.3 bar
    • Maximum Pressure: 12.3 bar

• Year of Construction: 2016

• Operating Hours : 709 hours, indicating moderate use and suggesting that the machine could have a long remaining life if maintained properly.

• Dimensions and Weight:

  • Dimensions : Not specified in the details provided, but compressors of this capacity generally measure approximately 2500mm long, 1200mm wide and 1600mm high.
  • Weight : Typically around 2000 kg.

Mechanical Characteristics

• Energy Efficiency : Cummins engine and compressor design ensure good energy efficiency and stable performance, with optimized fuel consumption and low emissions.

• Reliability : Rugged construction and high-quality materials ensure long life and consistent performance. The pressure regulation system allows you to adapt the compressor to different applications, improving versatility.

• Pressure Adjustment : The ability to operate at two different pressure settings makes the Doosan 7-124 suitable for a variety of industrial and construction uses.

Usage Procedure

1. Switching on : Start the compressor via the control panel. Make sure all connections and fluid levels are correct before starting.

2. Parameter Settings : Use the control system to select the desired pressure setting. You can choose between low pressure and high pressure mode according to your application needs.

3. Monitoring : During operation, monitor parameters through the control panel to ensure that the compressor is operating within recommended limits.

4. Shutdown : After use, turn off the compressor and wait for all components to come to a complete stop before carrying out maintenance.

Matching accessories

• Storage Tank : Adding a storage tank can help stabilize pressure and reduce the number of cycles the compressor cycles on and off.

• Air Dryer : An air dryer is useful for removing moisture from compressed air, improving the quality and protecting pneumatic tools.

Mathematical Formulas for Optimal Use

• Energy Consumption:

  $$E$$

  Where EE $E$ is the energy consumed, PP $P$ is the motor power and tt $t$ is the operating time.

• Calculation of Flow Rate and Pressure:

  $$P$$

  Where PmotorP_{motor} $P$ m o t or ​is QQ $Q$ is the flow rate, PP $P$ is the pressure and η\eta $\eta$ is the compressor efficiency.

Workable Materials

The Doosan 7-124 compressor is designed to handle compressed air and can be used in a wide range of industrial applications, including powering pneumatic tools, construction operations and general uses in industrial environments.

Maintenance

• Checking the Filters : Replace the air and oil filters regularly to maintain performance and prolong the life of the compressor.

• Oil Change : Perform oil changes following the manufacturer's recommendations to ensure adequate lubrication.

• Cooling System Inspection : Check the cooling system to prevent overheating and ensure efficient operation.

• Check Operating Hours : Monitor operating hours and plan preventive maintenance to manage necessary interventions.

Evaluation of Good Used

• General Condition : Visually inspect the compressor for signs of wear or damage. Check the housing and internal components for any problems.

• Operating Hours : With 709 hours of use, the compressor has significant remaining life, especially if it has been properly maintained.

• Maintenance History : Request maintenance records to ensure the compressor has been properly cared for.

Sectors of Use

The Doosan model 7-124 compressor is used in various sectors:

• Manufacturing Industry : Provides compressed air to power pneumatic tools and machines.

• Construction Industry : Used on construction sites to operate pneumatic equipment and tools.

• Energy Sector : Suitable for industrial applications requiring a continuous supply of compressed air.

Advantages of Buying Used

• Lower Cost : The price of a used compressor is generally lower than a new one, offering a more economical option for businesses.

• Reliability : Used compressors from recognized brands such as Doosan are often well built and can offer long life and reliable performance.

• Immediate Availability : A used compressor is often available for immediate purchase and use, reducing waiting times compared to a new one.

In conclusion, the Doosan Model 7-124 compressor, with its ability to operate at dual pressure and efficient Cummins engine, is an excellent choice for those looking for a high-quality used compressor. Its advanced mechanical characteristics and low operating hours make it a valid proposition for various industrial applications.