Rotary screw compressors on a base frame with belt drive and speed control

Variable-speed rotary screw compressors on a base frame with belt drive

Variable-speed rotary screw compressors on a base frame with belt drive are suitable for stationary compressed air systems in which compressed air storage tanks and treatment units are installed separately. In this subcategory of variable-speed rotary screw compressors, you will find the FV series ranging from 30 to 90 kW.

Depending on the power level, the available models deliver approximately 4.6 to 14.7 m³/min and operate within pressure ranges of 5–8 or 5–10 bar. This page focuses on the base frame design: It offers flexibility when combining with existing tanks, refrigerated air dryers, filters, and other compressed-air accessories.

For existing or custom-designed compressed air stations

✅ FV Series 30 to 90 kW

✅ Belt drive and speed control

✅ on a base frame without an integrated container

✅ Separate sizing of storage and treatment systems
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Variable-speed FV rotary screw compressors on a base frame

Variable-speed rotary screw compressors on a base frame with belt drive are the belt-driven subgroup within the category of variable-speed rotary screw compressors. The current product line includes six FV models ranging from 30 to 90 kW.

Base frame with a flexible design

The focus of this page is on system integration. Since the compressors are designed with a base frame, existing air receivers, refrigerated air dryers, filters, and condensate management systems can continue to be used or be redesigned to fit. This distinguishes this design from complete tank stations.

30 to 90 kW with variable flow rate

The FV series includes models rated at 30, 37, 45, 55, 75, and 90 kW. Depending on the model, the specified flow rates range from approximately 4.6 to 14.7 m³/min. The available pressure ranges are 5–8 bar and 5–10 bar, respectively.

For variable compressed air consumption

Speed control is particularly useful when demand fluctuates. The compressor can adjust its flow rate within its control range to match current consumption. To ensure the machine is properly sized, base load, average consumption, and peak load should be considered separately.

Combine base frames sensibly

✅ Check existing air receivers

✅ Determine the required drying time

✅ Select filter stages based on application

✅ Consider condensate drain and installation

✅ Design the piping system for the required flow rate

Distinction from the belt drive top side

The same FV product family can also be accessed in the store via the hierarchy of belt-driven rotary screw compressors. This page deliberately focuses on the search intent “variable-speed + base frame,” while the other page illustrates the drive path and the comparison with the fixed-speed belt-drive variants.

Buy a variable-speed rotary screw compressor on a base frame

If you want to set up a variable-speed compressed air station with separately planned peripherals, the FV Series—ranging from 30 to 90 kW—is the right choice. The load profile, required supply pressure, and flow rate are key factors in making your selection.

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