Rotary screw compressors on a base frame with 1:1 direct drive and speed control

Variable-speed rotary screw compressors on a base frame with 1:1 direct drive

Variable-speed rotary screw compressors on a base frame with 1:1 direct drive represent the direct-drive variant within the variable-speed compressor range. In this category, you will find the DV series ranging from 11 to 90 kW.

Depending on the model, operating pressures of 8 or 10 bar and flow rates ranging from approximately 1.3 to 15.4 m³/min are available. The base frame version is designed for integration into a separately planned compressed air station. This allows the air receiver, drying, and filtration systems to be sized according to the actual system requirements. The variable speed is particularly beneficial for applications with significant fluctuations in air demand.

Direct-drive and variable-speed

✅ DV Series 11 to 90 kW

✅ 1:1 direct drive

✅ variable flow rate

✅ 8 or 10 bar operating pressure

✅ Base frame for custom system peripherals

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Variable-speed DV rotary screw compressors on a base frame

Variable-speed rotary screw compressors on a base frame with 1:1 direct drive form the direct-drive subgroup of variably controlled rotary screw compressors. The DV series in the current product range spans 11 to 90 kW.

Direct Drive and Base Frame

The 1:1 power transmission characterizes the drive concept, while the base frame design allows for flexible planning of the system’s peripherals. Air receivers, dryers, and filters are not dictated by this design but are selected to meet specific air demand and quality requirements.

11 to 90 kW at 8 or 10 bar

Depending on the model, the ten performance levels deliver flow rates ranging from 1.3/1.5 m³/min at 11 kW to 13.4/15.4 m³/min at 90 kW. The operating pressure can be set to 8 or 10 bar, depending on the model. As a result, the series covers a wide range of industrial compressed air applications.

Select Speed Control Based on Load Profile

Variable airflow capacity is particularly useful when air demand is not constant. When sizing the system, typical partial-load phases should be taken into account just as much as the base load and short-term demand peaks. A compressor selected solely based on maximum consumption often does not adequately reflect the actual operating profile.

Consider the following when planning systems

✅ Record actual load profile

✅ Choose 8 or 10 bar based on your needs

✅ Specify container size separately

✅ Plan drying and filtration based on the application

✅ Take into account installation space and pipe sizing

Distinction within the direct-drive structure

The DV series can also be accessed via the direct-drive hierarchy. On this page, however, the search intent focuses on variable-speed rotary screw compressors mounted on a base frame. This means that the higher-level “speed” category remains responsible for comparing belt-driven and direct-drive models.

Buy a variable-speed direct drive on a base frame

The DV series offers ten performance levels for professional compressed air systems. To ensure a technically appropriate selection, the flow rate, operating pressure, load profile, and the separately planned system peripherals should be considered together.

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