Used Rotary Screw Compressor 5.5 kW (7.5 HP)

Introduction

The 5.5 kW (7.5 HP) rotary screw compressor represents an excellent choice for those looking for used industrial equipment, characterized by efficiency, silence and robustness. This type of compressor is particularly appreciated for its energy savings compared to traditional piston compressors. Provided below is a detailed spec sheet that explores all the relevant features and details of the used model.

Visual Description and Components

• Visual Appearance : The used 5.5 kW rotary screw compressor has a compact and solid structure. Usually, it is covered in a gray or dark blue metal casing, with a smooth, clean surface. The unit is designed to be rugged and durable, with a design that facilitates ventilation and cooling.

• Main Components:

  • Motor : 5.5 kW (7.5 HP) three-phase electric motor with star-delta starting, designed for smooth starting and longer life.
  • Screw Group : The rotary screw group is the heart of the compressor, which allows continuous and uniform compression of the air. This component is made of high-strength materials to ensure long life.
  • Cooling System : Includes fans and radiators to maintain optimal operating temperature and prevent overheating.
  • Control System : The control panel allows you to monitor and adjust the operating parameters of the compressor, such as pressure and speed.

• Measurements and Specifications:

  • Engine Power : 5.5 kW (7.5 HP)
  • Output Pressure : Up to 10 bar (145 psi)
  • Voltage : 400 V, three-phase
  • Starting Type : Star-delta, which reduces the peak current during starting and improves motor efficiency.
  • Dimensions and Weight : Dimensions may vary, but are generally designed to optimize space and facilitate installation. The machine is quite compact, yet robust, suitable for industrial environments.

Mechanical Characteristics

• Compressor Type : Rotary screw compressor, known for its ability to operate with low vibration and noise levels.
• Energy Efficiency : Designed to offer significant energy savings compared to piston compressors, thanks to its structure and advanced control system.
• Quiet : The compressor is designed to operate at low noise levels, thanks to the insulated construction and screw unit design.

Usage Procedure

1. Installation : Place the compressor on a flat and stable surface. Make sure the unit is well ventilated and that there are no obstacles to air circulation.
2. Electrical Connection : Connect the compressor to the 400 V three-phase electrical network, ensuring that the connection is safe and compliant with regulations.
3. Startup : Turn on the compressor using the control panel. The star-delta starting facilitates a smooth start and reduces current peaks.
4. Adjustment and Monitoring : Use the control panel to adjust the output pressure and monitor the operation of the unit. Check parameters regularly to ensure the compressor is operating within optimal ranges.

Matching accessories

• Filters and Separators : To improve the quality of compressed air and protect pneumatic equipment.
• Accumulation tanks : To increase the storage capacity of compressed air and stabilize the flow.
• Air Dryers : To remove moisture from compressed air, preventing corrosion and improving air quality.

Mathematical Formulas for Optimal Use

• Compression Capacity:

  $$Q$$

  Where QQ $Q$ is the compression capacity, VV $V$ is the air volume, P1P1 $P$ $1$ is the inlet pressure, P2P2 $P$ $2$ is the outlet pressure, RR $R$ is the gas constant and TT $T$ is the temperature.

• Energy Consumption:

  $$E$$

  Where EE $E$ is the energy consumed, PP $P$ is the engine power, tt $t$ is the operating time and efficiency is the compressor performance.

Workable Materials

The compressor is designed to handle compressed air. It is not suitable for the treatment of solid or liquid materials. It is ideal for applications requiring a continuous and reliable supply of compressed air.

Maintenance

• Oil Check : Check and replace the compressor oil regularly to maintain optimal lubrication and prevent damage to the screw assembly.
• Cleaning Filters : Clean or replace filters to maintain air quality and ensure efficient operation.
• Cooling System Inspection : Make sure the cooling system is functioning properly and that there are no obstructions.
• Periodic Check : Periodically check the starting system, the control panel and the electrical connections.

Evaluation of Good Used

• Visual Condition : Examine the unit for any signs of wear or damage. A good quality used compressor should appear well maintained and free of significant damage.
• Operating Hours : Check the hours of use via the counter. Fewer hours indicates less wear.
• Maintenance Documentation : Request maintenance documentation to confirm that the compressor has been regularly checked and repaired if necessary.

Sectors of Use

• Light and Heavy Industry : To power pneumatic machinery and equipment.
• Laboratories and Workshops : Used for precision instruments and applications requiring high quality compressed air.
• Automation and Control : Ideal for automated systems that require a continuous supply of compressed air.

Advantages of Buying Used

• Lower Cost : Purchasing a used 5.5 kW (7.5 HP) compressor allows you to get a high-quality unit at a lower price than new.
• Immediate Availability : A used compressor can be available for immediate use, reducing waiting times.
• Reliability : A well-maintained used compressor can offer comparable performance to a new compressor, with the advantage of a lower initial cost.

Conclusion

The used 5.5 kW (7.5 HP) rotary screw compressor is an excellent choice for those looking for a reliable and energy efficient industrial unit. With its advanced technology, star-delta starting and low noise level, this compressor is an ideal option for many industrial applications. For more information and to purchase the compressor, contact us directly.