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Atlas Copco - Oil-free medium pressure screw compressor with high pressure piston booster - ZD (VSD)

ZD compressor and booster combination with energysaving VSD option

Whether you need medium, high pressure or both, the ZD (VSD) high pressure screw compressor and booster delivers 100% oil-free dry air or nitrogen.

ZD range: smart air and nitrogen boosters

Our ZD (VSD) hybrid solution combines the advantages of oil-free screw technology, drum type adsorption dryer and the well-known piston booster technology. The result is in 100% oil-free dry air or nitrogen for medium- and high-pressure applications such as:

  • PET Industry : blowing
  • instrument air
  • natural nitrogen vent capturing
  • soot blower air

The ZD system is easy to install and easy to use: no complex connections or foundations are required. Z compressor and D booster can be used in parallel or separately reaching different levels of pressure ratios between 25 and 40 bar, which saves you maintenance time and costs.

Four-stage air compression with high-efficiency intercooling maximises compression efficiency. More savings can be achieved with adding Variable Speed Drive (VSD) and energy recovery.

Technical specification

Capacity FAD l/s 221 l/s - 1,127 l/s
Capacity FAD 796 m³/h - 4,057 m³/h
Working pressure 25 bar(e) - 42 bar(e)
Installed motor power 155 kW - 815 kW

Key features

Energy savings

Four -stage compression with intercooling is more efficient than three-stage piston designs. The MD dryer also improves the compression efficiency of the booster.

Hybrid technology

ZD is a combination of well-known oil-free screw, adsorption dryer and booster technology. Designed to increase system efficiency and reliability.

Re-use your energy

Thanks to the optional heat recovery unit, you can reduce energy cost by using the hot water generated in your production system by boilers, showers, cleaning processes.

Air purity

ZDs are ISO 8573-1 Class 0 certified, which means no oil will enter your air or nitrogen network, minimizing product contamination risk.

Low maintenance costs

Thanks to the hybrid system design, the ZD reduces the number of components which increases component lifetime, extends maintenance intervals and reduces maintenance costs.

VSD for more savings

The Variable Speed Drive makes the ZDs on average 35 % more energy-efficient than fixed-speed compressors. MD dryer uses the heat of compression for further savings.

  • Automotive
  • Food & Beverage
  • Oil & Gas
Atlas CopcoGreat ideas accelerate innovation. At Atlas Copco we have been turning industrial ideas into business-critical benefits since 1873. By listening to our customers and knowing their needs, we deliver value and innovate with the future in mind. Atlas Copco is based in Stockholm, Sweden with customers in more than 180 countries and about 37 000 employees. Revenues of BSEK 95/ 9 BEUR in 2018.
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