Overview

This technical data sheet details the specifications and features of the BERG KOMPBERG® BSDF 75 bar screw compressor with inverter and direct drive (1:1 ratio). It is designed for industrial compressed air applications with a focus on efficiency, reliability, and ease of control.

Technical Specifications

• Type: KOMPBERG® BSDF 75 bar
• Nominal Motor Power: 75 kW
• Speed: Approximately 2980 rpm (varies with operating pressure)
• Voltage: 400 V standard, 480 V available on request
• Frequency: 50 Hz standard, 60 Hz on request
• Protection Class: IP55
• Insulation Class: F
• Variable Speed Drive (VSD): YASKAWA / Danfoss inverter
• PLC and HMI Controllers: SIEMENS
• Construction: Direct drive without gearbox, carbon steel base frame, sound enclosure with removable sheet metal doors
• Oil Capacity: 8 liters
• Oil Carry Over: 1-3 mg/m³
• Cooling Air Required: 11,700 m³/h
• Compressed Air Outlet Temperature: 10°C above ambient temperature
• Ambient Temperature Range: +5°C to +40°C
• Compressed Air Outlet Connection: G 2 inch
• Electrical Cable Section: 3x70 mm² + PE
• Motor Nominal Current: 120 A
• Dimensions (L x W x H): 2100 x 1030 x 1670 mm
• Weight: 1900 kg
• Sound Level: 76 dB(A)
• Powder Coating Colors: RAL 7047 (frame), RAL 5002 (doors)

Performance Data

• Free Air Delivery (FAD) per ISO 1217 Annex C:
• At 7.5 bar: 3.6 - 13.6 m³/min (127.1 - 480.2 cfm)
• At 10 bar: 3.6 - 12.3 m³/min (127.1 - 434.3 cfm)
• At 13 bar: 3.5 - 9.4 m³/min (123.6 - 331.9 cfm)

Design and Construction

The compressor features a 1:1 direct drive screw compressor without gearbox, ensuring efficient power transmission and reduced maintenance. The base frame is constructed from steel beams, and the sound enclosure is made from steel sheet profiles with removable doors for easy access. The unit is powder coated for durability and aesthetic appeal.

Control and Electronics

The compressor is equipped with a microprocessor-based electronic control system housed in an electronic box. It includes PLC and HMI controllers from SIEMENS, and the inverter drive is provided by YASKAWA or Danfoss, enabling variable speed operation for energy efficiency and precise pressure control.

Cooling and Environmental Conditions

• Cooling air inlet and outlet are designed to handle 11,700 m³/h airflow.
• Operating ambient temperature range is from +5°C to +40°C.
• Compressed air outlet temperature is maintained at approximately 10°C above ambient.

Installation and Connection Details

• Compressed air outlet connection: G 2 inch
• Electrical connection: 3x70 mm² + PE cable
• Motor nominal current: 120 A

Additional Notes

The document emphasizes that the compressor is proprietary information of BERG Kompressoren GmbH and must not be copied or shared without written permission. The unit is designed for industrial use with sound attenuation and robust construction to ensure long-term reliability.