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VARIABLE SPEED VACUUM PUMPS

A variable speed vacuum pump adjusts its rotational speed to maintain a constant pressure level. Energy savings of up to 50% can be achieved.

Our solutions

  • r5_0630_c_vsd
    Integrated VSD

    VSD enables the pumping speed of a vacuum pump to be adapted exactly to the actual requirements of your process. The result: significant energy savings.

    Learn more
  • r_5_ra_0630_c_vfdretrofitkit_2
    Retrofit Kits

    Busch offers a wide range of vacuum pumps with integrated VSD. With our Retrofit Kits you can easily upgrade your existing vacuum pumps.

    Learn more
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HOW A VARIABLE SPEED DRIVE IMPROVES YOUR PROCESS

In most processes, the vacuum demand varies over time. In such applications, a vacuum pump operating at a fixed speed provides the maximum pumping speed required but will continue to provide the same pumping speed when the demand decreases.

A variable speed vacuum pump adjusts its rotational speed to maintain a constant pressure level. When vacuum demand decreases, this results in reduced speed and optimized energy consumption. So why pay for a pump to operate all the time, why not just pay for it when you need to use it? This is the right way. The Busch way.

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ADVANTAGES OF A VARIABLE SPEED DRIVE

Cost reduction

  • Up to 50% energy savings
  • Less maintenance and longer lifetime

Easy installation

  • No control cabinet needed
  • 380V – 460V, 50-60 Hz with a single drive
  • Retrofit kits available

Efficient and economical

  • Reduced CO2 footprint
  • Productivity increase: + 20% pumping speed at 60 Hz

HOW TO SAVE MONEY WITH VARIBALE SPEED DRIVE

Setup of examplary calculation

  • Product: Central vacuum system with one R5 RA 1000 B
  • Production time: 12 h/day (10 h/day production, 2 h/day breaks), 250 days/year
  • Electricity costs: 0.15 €/kWh

Comparing a conventional R5 RA 1000 B with a R5 RA 1000 B with VSD

 CONVENTIONAL R5 RA 1000 B (CONSTANT SPEED 60 HZ)R5 RA 1000 B VSD (VARIABLE SPEED 25-60 HZ)
Average absorbed power during production22.3 kW13.2 kW
Average absorbed power during breaks12.5 kW5.4 kW
Daily power consumption248.0 kWh/day142.5 kWh/day
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05.5 kWh corresponds to 42 kg CO2 per day.

42 kg CO2 x 250 production days/year

= 10,500 KG CO2 /YEAR

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A tree absorbs approximately 10 kg CO2/year

10,500 kg CO2/year / 10 kg/tree

= 1,050 TREES

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This means, you would have to plant 1,050 trees to absorb the amount of CO2 which you have saved thanks to VSD.

Choose your vacuum pump with VSD

R5

  • R5 RA 0840 A Plus
  • R5 RA 1000/1600 A Plus
  • R5 RA 0630 C

COBRA INDUSTRY

  • COBRA NC 0200 B
  • COBRA NC 0300 B
  • COBRA NC 0400 B
  • COBRA NC 0630 C
  • COBRA NX 0450 A
  • COBRA NX 0650 A
  • COBRA NX 0950 A

COBRA SEMICON

  • COBRA BC 0100 G
  • COBRA BC 1001 G
  • COBRA BC 1200 A
  • COBRA DS 1800 A
  • COBRA DS 2141 A
  • COBRA DS 3181 B

DOLPHIN

  • DOLPHIN LM 0180–0800 A
  • DOLPHIN LT 0170–0630 A

MINK

  • MINK MV 0040-0080 D Synchro
  • MINK MV 0310 B
  • MINK MV 0500 B
  • MINK MV 0600 B
  • MINK MA 0018 A
  • MINK MB 0018 A
  • MINK MH 0018 A

TORRI

  • TORRI BD 0100 A
  • TORRI BD 0300 A
  • TORRI BD 0600 A

OUR EXPERIENCE. OUR SUCCESS STORIES

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    High-Quality Essential Oils and Essences Thanks to Vacuum Distillation

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    Enormous Energy Savings Thanks to Centralized Vacuum Supply for Packaging

    H. & J. Brüggen KG

    Learn more
  • Modern Vacuum Technology Increases Energy Efficiency during Vulcanization

    Modern Vacuum Technology Increases Energy Efficiency during Vulcanization

    ContiTech Antriebssysteme GmbH

    Learn more
  • Up to 70 Percent Energy Savings Thanks to Modern Vacuum Technology for Material Feed

    Up to 70 Percent Energy Savings Thanks to Modern Vacuum Technology for Material Feed

    Jedi Kunststofftechnik GmbH

    Learn more
  • Small but Powerful – Operating Fluid Free Central Vacuum Supply in a New Clinic

    Small but Powerful – Operating Fluid Free Central Vacuum Supply in a New Clinic

    VCR Viborg

    Learn more
  • Energy Savings and Reduction of Carbon Dioxide Emissions Thanks to Centralization of Vacuum Supply

    Energy Savings and Reduction of Carbon Dioxide Emissions Thanks to Centralization of Vacuum Supply

    Block House Fleischerei GmbH

    Learn more
  • Huge Energy Savings with Centralized Vacuum Concept

    Huge Energy Savings with Centralized Vacuum Concept

    Capron GmbH

    Learn more
  • Vacuum Supply for Food Packaging – 70% Less Energy Consumption

    Vacuum Supply for Food Packaging – 70% Less Energy Consumption

    Feinkost Dittmann

    Learn more
  • Advanced and Efficient Vacuum Supply in Paper Bag Production

    Advanced and Efficient Vacuum Supply in Paper Bag Production

    GSD-Verpackungen

    Learn more

FAQ

What is a variable speed drive?

A variable speed drive (VSD) is a digital controller that regulates the rotational speed of a motor. It enables the pumping speed of a vacuum pump to be adapted exactly to the actual requirements of your process.

Is it also possible to retrofit existing vacuum pumps?

Busch offers a wide range of vacuum pumps with integrated VSD. However, with our Retrofit Kits you can easily upgrade your existing vacuum pumps.

How does the variable speed drive work?

Vacuum demand often varies within production processes. Ideally, the vacuum supply should be synchronized with demand. With a variable speed drive, vacuum pumps can be automatically adjusted to match variations in vacuum demand precisely. Reacting to fluctuations in demand makes considerable energy savings possible.

What are the different operating modes?

In scenarios with changing process parameters, we recommend vacuum pumps that can be controlled on a demand-driven basis and that either guarantee a consistent pumping speed or constantly maintain the required vacuum level.

Speed control

For processes with constant vacuum demand, it is recommended to leave the vacuum pump running at constant speed.

Pressure control

For processes with changing vacuum demand over time, the pressure control mode is the ideal choice. In this case, the vacuum pump adjusts the rotational speed according to the required vacuum level. Once this vacuum level has been achieved, the vacuum pump continues to run at minimum speed, enabling it to respond to a sudden need for increased vacuum demand and leading to further energy savings.

What is the difference between a variable speed drive (VSD) and a variable frequency drive (VFD) vacuum pump?

There is practically none. They are just two terms for the same thing. VSD is understood from the result, the different rotational speeds of the vacuum pump, VFD on the other hand stands for the cause of the different speeds, namely the variable frequency.